Re: Damned customs - F 85 Soft
On 4/5/2011 20:59, Bob W wrote: From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of Mark Roberts I've come up with a pretty good soft-focus emulation recipe for Photoshop. I'll try to post it in a day or two. Mark, if by any chance it could be re-created in LightRoom, I'd be most thankful for the recipe. No way. It requires multiple layers. can't understand why it needs any chickens at all... B Bob, you mean hens, don't you? -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On 2011-04-05 18:21 , Mark Roberts wrote: Non-Lightroom compatible, but here it is: http://www.robertstech.com/blog/?p=222 interesting technique, and thanks for sharing, but it doesn't seem intuitive that spherical aberration alone can describe soft focus a thought experiment: if you aimed a soft-focus lens at just the right concave surface, would everything be sharp? i think there'd still be more going on -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
Bruce Walker wrote: On 11-04-05 8:21 PM, Mark Roberts wrote: Boris Liberman wrote: On 4/5/2011 17:01, Mark Roberts wrote: I've come up with a pretty good soft-focus emulation recipe for Photoshop. I'll try to post it in a day or two. Mark, if by any chance it could be re-created in LightRoom, I'd be most thankful for the recipe. Non-Lightroom compatible, but here it is: http://www.robertstech.com/blog/?p=222 Excellent article, Mark. BTW, you could use a Smart Filter in the step(s) where you do the Gaussian blur; that would be non-destructive. Needs CS3 and up. Duly updated (and generally polished a bit). http://www.robertstech.com/blog/?p=222 -- Mark Roberts - Photography Multimedia www.robertstech.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
steve harley wrote: On 2011-04-05 18:21 , Mark Roberts wrote: Non-Lightroom compatible, but here it is: http://www.robertstech.com/blog/?p=222 interesting technique, and thanks for sharing, but it doesn't seem intuitive that spherical aberration alone can describe soft focus a thought experiment: if you aimed a soft-focus lens at just the right concave surface, would everything be sharp? i think there'd still be more going on If you had a lens that was perfect in every regard *except* spherical aberration and aimed it at a concave surface (of precisely the right curvature) everything would be sharp. This doesn't strike me as an experiment that's practical in real life, though. ;-) So, yes, there's more going on. -- Mark Roberts - Photography Multimedia www.robertstech.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On Wed, Apr 6, 2011 at 10:06 AM, steve harley p...@paper-ape.com wrote: interesting technique, and thanks for sharing, but it doesn't seem intuitive that spherical aberration alone can describe soft focus a thought experiment: if you aimed a soft-focus lens at just the right concave surface, would everything be sharp? i think there'd still be more going on You're confusing spherical aberration with field curvature. Spherical aberration is an on-axis aberration; it's what you get from a spherical telescope mirror instead of a parabolic mirror. If you have rays of light from a point source on axis (i.e. at field center), rays of light at the edge of the mirror/lens come to a different focus than rays that pass near the center. So even a single star at the center of the field is blurred. It was the aberration that afflicted the Hubble Space Telescope at launch. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On 11-04-06 10:13 AM, Matthew Hunt wrote: On Wed, Apr 6, 2011 at 10:06 AM, steve harleyp...@paper-ape.com wrote: interesting technique, and thanks for sharing, but it doesn't seem intuitive that spherical aberration alone can describe soft focus a thought experiment: if you aimed a soft-focus lens at just the right concave surface, would everything be sharp? i think there'd still be more going on You're confusing spherical aberration with field curvature. Spherical aberration is an on-axis aberration; it's what you get from a spherical telescope mirror instead of a parabolic mirror. If you have rays of light from a point source on axis (i.e. at field center), rays of light at the edge of the mirror/lens come to a different focus than rays that pass near the center. So even a single star at the center of the field is blurred. It was the aberration that afflicted the Hubble Space Telescope at launch. And we think Pentax QA is bad. :-) So how did they fix that? Send up a new mirror? -bmw -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On Wed, Apr 6, 2011 at 10:12 AM, Mark Roberts m...@robertstech.com wrote: If you had a lens that was perfect in every regard *except* spherical aberration and aimed it at a concave surface (of precisely the right curvature) everything would be sharp. You fell for Steve's cunning trap, and are also confusing spherical aberration and field curvature. :-) In the presence of spherical aberration, there's no way to bring even a single point to sharp focus, let alone a surface (whether planar or curved). See the ray diagrams at: http://en.wikipedia.org/wiki/Spherical_aberration You can see why stopping down the aperture mitigates spherical aberration; the rays at the edge of the aperture come to a different focus than those near the center. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On Wed, Apr 6, 2011 at 10:20 AM, Bruce Walker bruce.wal...@gmail.com wrote: And we think Pentax QA is bad. :-) The root cause of the problem was that an apparatus used to test the mirror was incorrectly assembled. The HST primary was then precisely ground to exactly the wrong figure. http://en.wikipedia.org/wiki/Hubble_Space_Telescope#Flawed_mirror So how did they fix that? Send up a new mirror? They replaced one of the instruments with a corrective optics package called COSTAR, that sits in the optical path and corrects the problem. It's basically the opposite of Larry's idea of a teleconverter that introduces spherical aberration. It's fortunate that the HST was designed for on-orbiting servicing and instrument upgrades. Many newer space telescopes are sent to orbits where they cannot be reached my manned craft. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On 2011-04-06 08:13 , Matthew Hunt wrote: On Wed, Apr 6, 2011 at 10:06 AM, steve harleyp...@paper-ape.com wrote: a thought experiment: if you aimed a soft-focus lens at just the right concave surface, would everything be sharp? i think there'd still be more going on You're confusing spherical aberration with field curvature. actually i was just taking at face value the terms and diagrams on Mark's post your wikipedia reference helped clear it up for me (so to speak) -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On Wed, Apr 6, 2011 at 12:26 PM, steve harley p...@paper-ape.com wrote: actually i was just taking at face value the terms and diagrams on Mark's post Ah, didn't catch that. I didn't read it too closely... the figures didn't load in Google Reader due to anti-hotlinking code, and I didn't bother to click through to Mark's website because I don't have Photoshop anyway. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On Wed, Apr 6, 2011 at 12:36 PM, Matthew Hunt m...@pobox.com wrote: On Wed, Apr 6, 2011 at 12:26 PM, steve harley p...@paper-ape.com wrote: actually i was just taking at face value the terms and diagrams on Mark's post Ah, didn't catch that. I didn't read it too closely... the figures didn't load in Google Reader due to anti-hotlinking code, and I didn't bother to click through to Mark's website because I don't have Photoshop anyway. The explanations and diagrams on Mark's page appear correct to me, BTW, as of this time. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
Matthew Hunt wrote: On Wed, Apr 6, 2011 at 12:36 PM, Matthew Hunt m...@pobox.com wrote: On Wed, Apr 6, 2011 at 12:26 PM, steve harley p...@paper-ape.com wrote: actually i was just taking at face value the terms and diagrams on Mark's post Ah, didn't catch that. I didn't read it too closely... the figures didn't load in Google Reader due to anti-hotlinking code, and I didn't bother to click through to Mark's website because I don't have Photoshop anyway. The explanations and diagrams on Mark's page appear correct to me, BTW, as of this time. Yep, I've corrected a few items (and clarified parts of the description of the Photoshop process). -- Mark Roberts - Photography Multimedia www.robertstech.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
Today I tried experimenting with the soft-focus art filter on my E-PL1. If the result of soft focus is mild overexposure and lowered contrast, then I've nailed it. Better luck with the lens, Kris. ;-) On Wed, Apr 6, 2011 at 12:50 PM, Mark Roberts m...@robertstech.com wrote: Matthew Hunt wrote: On Wed, Apr 6, 2011 at 12:36 PM, Matthew Hunt m...@pobox.com wrote: On Wed, Apr 6, 2011 at 12:26 PM, steve harley p...@paper-ape.com wrote: actually i was just taking at face value the terms and diagrams on Mark's post Ah, didn't catch that. I didn't read it too closely... the figures didn't load in Google Reader due to anti-hotlinking code, and I didn't bother to click through to Mark's website because I don't have Photoshop anyway. The explanations and diagrams on Mark's page appear correct to me, BTW, as of this time. Yep, I've corrected a few items (and clarified parts of the description of the Photoshop process). -- Mark Roberts - Photography Multimedia www.robertstech.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- Steve Desjardins -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On Apr 4, 2011, at 10:24 PM, Boris Liberman wrote: On 4/4/2011 21:29, Krisjanis Linkevics wrote: It is damn near impossible to find anyone who actually shoots with it, posts pictures on the web and admits it. The lens should be in my hands tomorrow morning, I will just have to see first-hand. kris This http://not.contaxg.com/document.php?id=11097full=1 is one of my all time favorite pictures. Took it with F85 soft, tripod and all... That's what it looks like through the viewfinder of my K100. -- Larry Colen l...@red4est.com sent from i4est -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Damned customs - F 85 Soft
This http://not.contaxg.com/document.php?id=11097full=1 is one of my all time favorite pictures. Took it with F85 soft, tripod and all... Boris Beautiful. A welcome distraction from this sharpness trumps everything world. kris -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On Apr 5, 2011, at 1:01 AM, Krisjanis Linkevics wrote: This http://not.contaxg.com/document.php?id=11097full=1 is one of my all time favorite pictures. Took it with F85 soft, tripod and all... Boris Beautiful. A welcome distraction from this sharpness trumps everything world. Welcome to the PDML where clarity of vision is more important than clarity of photos. kris -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- Larry Colen l...@red4est.com sent from i4est -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On 4/5/2011 11:01, Krisjanis Linkevics wrote: Beautiful. A welcome distraction from this sharpness trumps everything world. kris Thanks. I still regret (now a bit more) parting with this lens... By the way, my hunt for soft filter produced no results that I could have stayed with. Boris -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On Apr 5, 2011, at 1:24 AM, Boris Liberman wrote: On 4/5/2011 11:01, Krisjanis Linkevics wrote: Beautiful. A welcome distraction from this sharpness trumps everything world. kris Thanks. I still regret (now a bit more) parting with this lens... By the way, my hunt for soft filter produced no results that I could have stayed with. By filters do you mean physical filters? Because I think that taking sharpness out of a photo is something that could be done trivially easily in digital post processing. Boris -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- Larry Colen l...@red4est.com sent from i4est -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On Apr 5, 2011, at 01:38 , Larry Colen wrote: On Apr 5, 2011, at 1:24 AM, Boris Liberman wrote: On 4/5/2011 11:01, Krisjanis Linkevics wrote: Beautiful. A welcome distraction from this sharpness trumps everything world. kris Thanks. I still regret (now a bit more) parting with this lens... By the way, my hunt for soft filter produced no results that I could have stayed with. By filters do you mean physical filters? Because I think that taking sharpness out of a photo is something that could be done trivially easily in digital post processing. But, the 85 Soft does not diminish the sharpness of the photo. It merely provides varying degrees of 'fog' around the sharp image. Joseph McAllister pentax...@mac.com The Big Bang was silent, and invisible in it's beginning moments. — from the Pentaxian's thoughts on particle physics, so far. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On Apr 5, 2011, at 2:05 AM, Joseph McAllister wrote: On Apr 5, 2011, at 01:38 , Larry Colen wrote: On Apr 5, 2011, at 1:24 AM, Boris Liberman wrote: On 4/5/2011 11:01, Krisjanis Linkevics wrote: Beautiful. A welcome distraction from this sharpness trumps everything world. kris Thanks. I still regret (now a bit more) parting with this lens... By the way, my hunt for soft filter produced no results that I could have stayed with. By filters do you mean physical filters? Because I think that taking sharpness out of a photo is something that could be done trivially easily in digital post processing. But, the 85 Soft does not diminish the sharpness of the photo. It merely provides varying degrees of 'fog' around the sharp image. All of my digital signal processing classes were nearly 30 years ago, so I don't have the mathematical chops to do it today, but that's still just a simple 2-d transform, possibly using a high pass filter for edge detection. Joseph McAllister pentax...@mac.com The Big Bang was silent, and invisible in it's beginning moments. — from the Pentaxian's thoughts on particle physics, so far. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- Larry Colen l...@red4est.com sent from i4est -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On 4/5/2011 11:38, Larry Colen wrote: By filters do you mean physical filters? Because I think that taking sharpness out of a photo is something that could be done trivially easily in digital post processing. Yes, exactly that, pieces of material that you put in front of the lens. I think that you overestimate the artistic value of digital post processing, especially high pass filters and 2D transforms... Boris -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On 11-04-05 5:14 AM, Larry Colen wrote: On Apr 5, 2011, at 2:05 AM, Joseph McAllister wrote: On Apr 5, 2011, at 01:38 , Larry Colen wrote: On Apr 5, 2011, at 1:24 AM, Boris Liberman wrote: On 4/5/2011 11:01, Krisjanis Linkevics wrote: Beautiful. A welcome distraction from this sharpness trumps everything world. kris Thanks. I still regret (now a bit more) parting with this lens... By the way, my hunt for soft filter produced no results that I could have stayed with. By filters do you mean physical filters? Because I think that taking sharpness out of a photo is something that could be done trivially easily in digital post processing. But, the 85 Soft does not diminish the sharpness of the photo. It merely provides varying degrees of 'fog' around the sharp image. All of my digital signal processing classes were nearly 30 years ago, so I don't have the mathematical chops to do it today, but that's still just a simple 2-d transform, possibly using a high pass filter for edge detection. Two points about that. The lens does a 3D transform. By the time you get the image, the sensor has removed the directional information and all you get to work with is a 2D plane with colour and luminance information. All spatial info is lost. If *all* the information available from the light was recorded by the sensor, you could do away with the lens entirely. You could simply expose the sensor through the empty lens mount and recreate the scene later with digital signal processing. (I read of some recent research work to do just that.) So there's stuff going on in glass-space that you simply cannot replicate in post-processing. But the second point is that you can do a pretty good PP fake of this soft lens effect. The Orton effect isn't identical, but looks quite similar. -bmw -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
Bruce Walker wrote: Two points about that. The lens does a 3D transform. By the time you get the image, the sensor has removed the directional information and all you get to work with is a 2D plane with colour and luminance information. All spatial info is lost. If *all* the information available from the light was recorded by the sensor, you could do away with the lens entirely. You could simply expose the sensor through the empty lens mount and recreate the scene later with digital signal processing. (I read of some recent research work to do just that.) So there's stuff going on in glass-space that you simply cannot replicate in post-processing. But the second point is that you can do a pretty good PP fake of this soft lens effect. The Orton effect isn't identical, but looks quite similar. I think the 85 Soft is one of those lenses deliberately designed with a lot of spherical aberration, which does strike me as something that would be very difficult to recreate in software. I've come up with a pretty good soft-focus emulation recipe for Photoshop. I'll try to post it in a day or two. -- Mark Roberts - Photography Multimedia www.robertstech.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On 4/5/2011 17:01, Mark Roberts wrote: I've come up with a pretty good soft-focus emulation recipe for Photoshop. I'll try to post it in a day or two. Mark, if by any chance it could be re-created in LightRoom, I'd be most thankful for the recipe. Boris -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Damned customs - F 85 Soft
On 4/5/2011 17:01, Mark Roberts wrote: I've come up with a pretty good soft-focus emulation recipe for Photoshop. I'll try to post it in a day or two. Mark, if by any chance it could be re-created in LightRoom, I'd be most thankful for the recipe. Boris Damn you all and I only just unpacked the thing... :) kris -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On Tue, Apr 05, 2011 at 08:13:58AM -0400, Bruce Walker wrote: If *all* the information available from the light was recorded by the sensor, you could do away with the lens entirely. You could simply expose the sensor through the empty lens mount and recreate the scene later with digital signal processing. (I read of some recent research work to do just that.) I've seen a presentation on it by the people doing the research. Well, they still use a primary lens, but the sensor does all sorts of other things with microlenses, etc. It's moderately impressive. But there's a tradeoff; there are only so many bits of information you can capture on any sensor. If you are using some of them to be able to recreate images in post processing, you have to give up something in exchange. You can recreate some of the 'lost' information (much as is done nowadays with Bayer sensor arrays), but not all of it. And you're still limited to what comes in through the front element. So while you can get some amount of distance and 3-D information to allow a shift of viewpoint by seeing what is different from one side of the lens to the other, you obviously can't record information on anything that is totally obscured by something between it and the camera. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On Tue, 05 Apr 2011 17:04:34 +0300, you wrote: On 4/5/2011 17:01, Mark Roberts wrote: I've come up with a pretty good soft-focus emulation recipe for Photoshop. I'll try to post it in a day or two. Mark, if by any chance it could be re-created in LightRoom, I'd be most thankful for the recipe. No way. It requires multiple layers. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
Krisjanis Linkevics wrote: This http://not.contaxg.com/document.php?id=11097full=1 is one of my all time favorite pictures. Took it with F85 soft, tripod and all... Boris Beautiful. A welcome distraction from this sharpness trumps everything world. kris How about the Soft = blurry world? IMMHO, if 'soft' is what everybody calls that lens, I'll stay away from it. Used to be, my eyes saw the world that way. I gladly paid a fair amount of money to CORRECT that deficiency. keith -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Damned customs - F 85 Soft
From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of Bruce Walker [...] The lens does a 3D transform. By the time you get the image, the sensor has removed the directional information and all you get to work with is a 2D plane with colour and luminance information. All spatial info is lost. never thought about that before - good point. I'll store it away in the canyons of my mind, right next to the stuff about Watteau and his fetes galantes, which are the other things rattling around up there at the moment. B -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Damned customs - F 85 Soft
From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of Mark Roberts I've come up with a pretty good soft-focus emulation recipe for Photoshop. I'll try to post it in a day or two. Mark, if by any chance it could be re-created in LightRoom, I'd be most thankful for the recipe. No way. It requires multiple layers. can't understand why it needs any chickens at all... B -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On Tue, 5 Apr 2011 18:59:51 +0100, you wrote: From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of Mark Roberts I've come up with a pretty good soft-focus emulation recipe for Photoshop. I'll try to post it in a day or two. Mark, if by any chance it could be re-created in LightRoom, I'd be most thankful for the recipe. No way. It requires multiple layers. can't understand why it needs any chickens at all... They're cormorants, not chickens. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On Apr 5, 2011, at 10:19 , Keith Whaley wrote: Krisjanis Linkevics wrote: This http://not.contaxg.com/document.php?id=11097full=1 is one of my all time favorite pictures. Took it with F85 soft, tripod and all... Boris Beautiful. A welcome distraction from this sharpness trumps everything world. kris How about the Soft = blurry world? IMMHO, if 'soft' is what everybody calls that lens, I'll stay away from it. Used to be, my eyes saw the world that way. I gladly paid a fair amount of money to CORRECT that deficiency. keith Keith, they used to sell a filter that was glass beaded except for the center portion the size of from a dime to a quarter. I have several. They don't give the same image that the 85mm ƒ2.2 Soft (Pentax's name) does, and if they did, they don't equal the convenience of having all of them in one lens at the same time. It makes a dreamy portrait lens. Joseph McAllister pentax...@mac.com “If I could tell the story in words, I wouldn’t need to lug a camera.” –Lewis Hine -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On Apr 5, 2011, at 12:19, Keith Whaley wrote: How about the Soft = blurry world? IMMHO, if 'soft' is what everybody calls that lens, I'll stay away from it. Used to be, my eyes saw the world that way. I gladly paid a fair amount of money to CORRECT that deficiency. Same here - this is the kind of image quality I get when there's moisture between my lens elements or something. It's not my cuppa tea. But then again, I don't care much for ANY filters/trickery between the subject/lens/film other than the lens itself. I realize I open up a huge can of worms with the word trickery but, yeah: starburst filters, half filters (like to darken the sky but leave the ground lighter for landscapes) and all that *usually* just annoy me. I'm a real stick-in-the-mud about that kind of thing. But, as they say, that's why there's chocolate AND vanilla. -Charles -- Charles Robinson - charl...@visi.com Minneapolis, MN http://charles.robinsontwins.org http://www.facebook.com/charles.robinson -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On Apr 5, 2011, at 9:36 AM, John Francis wrote: On Tue, Apr 05, 2011 at 08:13:58AM -0400, Bruce Walker wrote: If *all* the information available from the light was recorded by the sensor, you could do away with the lens entirely. You could simply expose the sensor through the empty lens mount and recreate the scene later with digital signal processing. (I read of some recent research work to do just that.) I've seen a presentation on it by the people doing the research. Well, they still use a primary lens, but the sensor does all sorts of other things with microlenses, etc. The term to look up is plenoptics. There's a company locally that's doing it. I didn't get past the phone interview. -- Larry Colen l...@red4est.com sent from i4est -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On Apr 5, 2011, at 11:14 AM, Joseph McAllister wrote: On Apr 5, 2011, at 10:19 , Keith Whaley wrote: Krisjanis Linkevics wrote: This http://not.contaxg.com/document.php?id=11097full=1 is one of my all time favorite pictures. Took it with F85 soft, tripod and all... Boris Beautiful. A welcome distraction from this sharpness trumps everything world. kris How about the Soft = blurry world? IMMHO, if 'soft' is what everybody calls that lens, I'll stay away from it. Used to be, my eyes saw the world that way. I gladly paid a fair amount of money to CORRECT that deficiency. keith Keith, they used to sell a filter that was glass beaded except for the center portion the size of from a dime to a quarter. I have several. They don't give the same image that the 85mm ƒ2.2 Soft (Pentax's name) does, and if they did, they don't equal the convenience of having all of them in one lens at the same time. It makes a dreamy portrait lens. The K-5 has a double exposure feature. I wonder what you could do by doing a double exposure with one of the exposures just a touch out of focus. Joseph McAllister pentax...@mac.com “If I could tell the story in words, I wouldn’t need to lug a camera.” –Lewis Hine -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- Larry Colen l...@red4est.com sent from i4est -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
ROTFL. Hurry and shoot before it becomes obsolete!! On Tue, Apr 5, 2011 at 10:07 AM, Krisjanis Linkevics krisjanis.linkev...@exigenservices.com wrote: On 4/5/2011 17:01, Mark Roberts wrote: I've come up with a pretty good soft-focus emulation recipe for Photoshop. I'll try to post it in a day or two. Mark, if by any chance it could be re-created in LightRoom, I'd be most thankful for the recipe. Boris Damn you all and I only just unpacked the thing... :) kris -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- Steve Desjardins -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
Boris Liberman wrote: On 4/5/2011 17:01, Mark Roberts wrote: I've come up with a pretty good soft-focus emulation recipe for Photoshop. I'll try to post it in a day or two. Mark, if by any chance it could be re-created in LightRoom, I'd be most thankful for the recipe. Non-Lightroom compatible, but here it is: http://www.robertstech.com/blog/?p=222 -- Mark Roberts - Photography Multimedia www.robertstech.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On 11-04-05 8:21 PM, Mark Roberts wrote: Boris Liberman wrote: On 4/5/2011 17:01, Mark Roberts wrote: I've come up with a pretty good soft-focus emulation recipe for Photoshop. I'll try to post it in a day or two. Mark, if by any chance it could be re-created in LightRoom, I'd be most thankful for the recipe. Non-Lightroom compatible, but here it is: http://www.robertstech.com/blog/?p=222 Excellent article, Mark. BTW, you could use a Smart Filter in the step(s) where you do the Gaussian blur; that would be non-destructive. Needs CS3 and up. -bmw -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On Apr 5, 2011, at 5:21 PM, Mark Roberts wrote: Boris Liberman wrote: On 4/5/2011 17:01, Mark Roberts wrote: I've come up with a pretty good soft-focus emulation recipe for Photoshop. I'll try to post it in a day or two. Mark, if by any chance it could be re-created in LightRoom, I'd be most thankful for the recipe. Non-Lightroom compatible, but here it is: http://www.robertstech.com/blog/?p=222 Thanks a bunch. Could one design, for example, a 1.4x teleconverter with some set amount of spherical aberration? That would turn a normal lens into a soft focus portrait lens? Something is tickling my neurons about a Nikon lens with an adjustable amount of soft focus. -- Larry Colen l...@red4est.com sent from i4est -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On Tue, 05 Apr 2011 21:15 -0400, Bruce Walker bruce.wal...@gmail.com wrote: On 11-04-05 8:21 PM, Mark Roberts wrote: Boris Liberman wrote: On 4/5/2011 17:01, Mark Roberts wrote: I've come up with a pretty good soft-focus emulation recipe for Photoshop. I'll try to post it in a day or two. Mark, if by any chance it could be re-created in LightRoom, I'd be most thankful for the recipe. Non-Lightroom compatible, but here it is: http://www.robertstech.com/blog/?p=222 Excellent article, Mark. Ditto and thanks, Mark - I'll give this a try. BTW, you could use a Smart Filter in the step(s) where you do the Gaussian blur; that would be non-destructive. Needs CS3 and up. Smart Filters (and Smart Objects) - something else I need to get my head around. Cheers Brian ++ Brian Walters Western Sydney Australia http://lyons-ryan.org/southernlight/ -- -- http://www.fastmail.fm - The professional email service -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
Bruce Walker wrote: On 11-04-05 8:21 PM, Mark Roberts wrote: Boris Liberman wrote: On 4/5/2011 17:01, Mark Roberts wrote: I've come up with a pretty good soft-focus emulation recipe for Photoshop. I'll try to post it in a day or two. Mark, if by any chance it could be re-created in LightRoom, I'd be most thankful for the recipe. Non-Lightroom compatible, but here it is: http://www.robertstech.com/blog/?p=222 Excellent article, Mark. BTW, you could use a Smart Filter in the step(s) where you do the Gaussian blur; that would be non-destructive. Needs CS3 and up. Good point. I don't use Smart Filters enough. I'll give it a go and revise the article. -- Mark Roberts - Photography Multimedia www.robertstech.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On 4/1/2011 21:49, Krisjanis Linkevics wrote: One of my new acquisitions - the F 85 soft - is held hostage in customs now. Damn those heartless bastards. I know it's their job but still.. will end up costing me way more than I ever wanted to pay for it. Any comments on it while I wait with my wallet open? kris Kris, I had this lens and sold it back to its original owner as per their request and my willingness to part with it. I had to do so mostly because I got scared of the rumors that FA 31 Ltd were gonna get discontinued. I was wrong on both counts as F85 soft is one of the few lenses that I sold and that I regret doing so. Boris -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Damned customs - F 85 Soft
Any comments on it while I wait with my wallet open? Kris, I had this lens and sold it back to its original owner as per their request and my willingness to part with it. I had to do so mostly because I got scared of the rumors that FA 31 Ltd were gonna get discontinued. I was wrong on both counts as F85 soft is one of the few lenses that I sold and that I regret doing so. Boris It is damn near impossible to find anyone who actually shoots with it, posts pictures on the web and admits it. The lens should be in my hands tomorrow morning, I will just have to see first-hand. kris -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
On 4/4/2011 21:29, Krisjanis Linkevics wrote: It is damn near impossible to find anyone who actually shoots with it, posts pictures on the web and admits it. The lens should be in my hands tomorrow morning, I will just have to see first-hand. kris This http://not.contaxg.com/document.php?id=11097full=1 is one of my all time favorite pictures. Took it with F85 soft, tripod and all... Boris -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Damned customs - F 85 Soft
I've never managed to get anything by them... have you? 2011/4/1 Krisjanis Linkevics krisjanis.linkev...@exigenservices.com: One of my new acquisitions - the F 85 soft - is held hostage in customs now. Damn those heartless bastards. I know it's their job but still.. will end up costing me way more than I ever wanted to pay for it. Any comments on it while I wait with my wallet open? kris -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Damned customs - F 85 Soft
I've never managed to get anything by them... have you? Every once in a while. TNT and DHL always cause serious problems, EMS that isn't routed through any of those usually passes through as if nobody cares. The main problem I have with them (TNT/DHL) is that it takes so much time, additional costs and babysitting to get your package through them that the higher shipping costs they want for their service are ridiculous. This one is being processed by TNT, if I were to try and pick it up from customs myself I would spend around 6h on a workday+driving all over the city. They are supposed to deliver to my door but on items that they have given to the customs they do that only if I pay extra. kris -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
