Re: Sharpening Radius?
and here it is in the words of the great Bruce Fraser: http://www.peachpit.com/articles/article.aspx?p=608637 -- 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: Sharpening Radius?
Paul, it's a Lightroom feature. On Thu, Nov 21, 2013 at 7:56 PM, Paul Stenquist pnstenqu...@comcast.net wrote: Some nice theory here but no practical info. Have to buy the book for that I guess. Not that it wouldn't be a good investment. I can't get that radius adjustment mask to work on my Mac. Any clues? The alt key would seem to e option or command, but neither produces any kind of change in radius adjustment on either Smart Sharpen or Unsharp Mask. Best, Paul On Nov 21, 2013, at 3:53 PM, steve harley p...@paper-ape.com wrote: and here it is in the words of the great Bruce Fraser: http://www.peachpit.com/articles/article.aspx?p=608637 -- 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. -- -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: Sharpening Radius?
Thanks David. So is there a way to see the radius change in PhotoShop? Paul On Nov 21, 2013, at 7:59 PM, David Parsons parsons.da...@gmail.com wrote: Pressing the Alt key is a Lightroom thing. It works differently in Photoshop. On Thu, Nov 21, 2013 at 7:56 PM, Paul Stenquist pnstenqu...@comcast.net wrote: Some nice theory here but no practical info. Have to buy the book for that I guess. Not that it wouldn't be a good investment. I can't get that radius adjustment mask to work on my Mac. Any clues? The alt key would seem to e option or command, but neither produces any kind of change in radius adjustment on either Smart Sharpen or Unsharp Mask. Best, Paul On Nov 21, 2013, at 3:53 PM, steve harley p...@paper-ape.com wrote: and here it is in the words of the great Bruce Fraser: http://www.peachpit.com/articles/article.aspx?p=608637 -- 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. -- David Parsons Photography http://www.davidparsonsphoto.com Aloha Photographer Photoblog http://alohaphotog.blogspot.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. -- 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: Sharpening Radius?
Other than trying it out, not that I know of. I usually left it at 1.1-1.3 for most sharpening when I was using PS. On Thu, Nov 21, 2013 at 8:05 PM, Paul Stenquist pnstenqu...@comcast.net wrote: Thanks David. So is there a way to see the radius change in PhotoShop? Paul On Nov 21, 2013, at 7:59 PM, David Parsons parsons.da...@gmail.com wrote: Pressing the Alt key is a Lightroom thing. It works differently in Photoshop. On Thu, Nov 21, 2013 at 7:56 PM, Paul Stenquist pnstenqu...@comcast.net wrote: Some nice theory here but no practical info. Have to buy the book for that I guess. Not that it wouldn't be a good investment. I can't get that radius adjustment mask to work on my Mac. Any clues? The alt key would seem to e option or command, but neither produces any kind of change in radius adjustment on either Smart Sharpen or Unsharp Mask. Best, Paul On Nov 21, 2013, at 3:53 PM, steve harley p...@paper-ape.com wrote: and here it is in the words of the great Bruce Fraser: http://www.peachpit.com/articles/article.aspx?p=608637 -- 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. -- David Parsons Photography http://www.davidparsonsphoto.com Aloha Photographer Photoblog http://alohaphotog.blogspot.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. -- 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. -- David Parsons Photography http://www.davidparsonsphoto.com Aloha Photographer Photoblog http://alohaphotog.blogspot.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: Sharpening Radius?
That's about what I did with the k-5, sometimes 1.5 for hard edge subjects like cars. Using much less with k-3. More like 0.5 at 40 percent. Paul via phone On Nov 21, 2013, at 8:17 PM, David Parsons parsons.da...@gmail.com wrote: Other than trying it out, not that I know of. I usually left it at 1.1-1.3 for most sharpening when I was using PS. On Thu, Nov 21, 2013 at 8:05 PM, Paul Stenquist pnstenqu...@comcast.net wrote: Thanks David. So is there a way to see the radius change in PhotoShop? Paul On Nov 21, 2013, at 7:59 PM, David Parsons parsons.da...@gmail.com wrote: Pressing the Alt key is a Lightroom thing. It works differently in Photoshop. On Thu, Nov 21, 2013 at 7:56 PM, Paul Stenquist pnstenqu...@comcast.net wrote: Some nice theory here but no practical info. Have to buy the book for that I guess. Not that it wouldn't be a good investment. I can't get that radius adjustment mask to work on my Mac. Any clues? The alt key would seem to e option or command, but neither produces any kind of change in radius adjustment on either Smart Sharpen or Unsharp Mask. Best, Paul On Nov 21, 2013, at 3:53 PM, steve harley p...@paper-ape.com wrote: and here it is in the words of the great Bruce Fraser: http://www.peachpit.com/articles/article.aspx?p=608637 -- 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. -- David Parsons Photography http://www.davidparsonsphoto.com Aloha Photographer Photoblog http://alohaphotog.blogspot.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. -- 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. -- David Parsons Photography http://www.davidparsonsphoto.com Aloha Photographer Photoblog http://alohaphotog.blogspot.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. -- 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: Sharpening Radius?
on 2013-11-21 17:56 Paul Stenquist wrote Some nice theory here but no practical info. Have to buy the book for that I guess. Not that it wouldn't be a good investment. there was specific practical info, even a calculator, in my prior link Bruce Fraser's books, particularly Real World Scanning and Halftones, have been considered best quality by prepress folks, but i haven't kept up with that world so they may have been surpassed -- 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: Sharpening Radius?
On Nov 21, 2013, at 4:56 PM, Paul Stenquist pnstenqu...@comcast.net wrote: I can't get that radius adjustment mask to work on my Mac. Any clues? The alt key would seem to e option or command, but neither produces any kind of change in radius adjustment on either Smart Sharpen or Unsharp Mask. Paul, It works the same in Lightroom as it does in the Camera Raw plugin. I'm running PS CS 5.1 with Camera Raw 6.7, but I'm sure it's the same with later versions. You go to the Detail panel in Camera Raw, hold the Option key down, and click on any of the Amount, Radius, Detail, or Masking sliders. Keeping the Option key held down, slide the slider around. You'll see the effect of the adjustment against a high-pass filtered gray backdrop. If you lift off the Option key, the view returns to normal, then you can press it again (mouse button still down on the slider) to return to the high-pass filtered view. G -- 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: Sharpening Radius?
Thanks Godfrey. I've been sharpening in PS after conversion but I'll give this a try. Paul via phone On Nov 21, 2013, at 9:10 PM, Godfrey DiGiorgi godfreydigio...@me.com wrote: On Nov 21, 2013, at 4:56 PM, Paul Stenquist pnstenqu...@comcast.net wrote: I can't get that radius adjustment mask to work on my Mac. Any clues? The alt key would seem to e option or command, but neither produces any kind of change in radius adjustment on either Smart Sharpen or Unsharp Mask. Paul, It works the same in Lightroom as it does in the Camera Raw plugin. I'm running PS CS 5.1 with Camera Raw 6.7, but I'm sure it's the same with later versions. You go to the Detail panel in Camera Raw, hold the Option key down, and click on any of the Amount, Radius, Detail, or Masking sliders. Keeping the Option key held down, slide the slider around. You'll see the effect of the adjustment against a high-pass filtered gray backdrop. If you lift off the Option key, the view returns to normal, then you can press it again (mouse button still down on the slider) to return to the high-pass filtered view. G -- 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: Sharpening Radius?
The technique doesn't work with the post-raw-conversion RGB composite tools, only in the raw conversion plug-in. Doing overall input sharpening is generally better performed on the raw data as there is more overhead and more data to work with then. The RGB tools are best used for creative and output sharpening. G On Nov 21, 2013, at 6:16 PM, Paul Stenquist pnstenqu...@comcast.net wrote: Thanks Godfrey. I've been sharpening in PS after conversion but I'll give this a try. Paul via phone On Nov 21, 2013, at 9:10 PM, Godfrey DiGiorgi godfreydigio...@me.com wrote: On Nov 21, 2013, at 4:56 PM, Paul Stenquist pnstenqu...@comcast.net wrote: I can't get that radius adjustment mask to work on my Mac. Any clues? The alt key would seem to e option or command, but neither produces any kind of change in radius adjustment on either Smart Sharpen or Unsharp Mask. Paul, It works the same in Lightroom as it does in the Camera Raw plugin. I'm running PS CS 5.1 with Camera Raw 6.7, but I'm sure it's the same with later versions. You go to the Detail panel in Camera Raw, hold the Option key down, and click on any of the Amount, Radius, Detail, or Masking sliders. Keeping the Option key held down, slide the slider around. You'll see the effect of the adjustment against a high-pass filtered gray backdrop. If you lift off the Option key, the view returns to normal, then you can press it again (mouse button still down on the slider) to return to the high-pass filtered view. -- 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: Sharpening Radius?
Pressing the Alt key is a Lightroom thing. It works differently in Photoshop. On Thu, Nov 21, 2013 at 7:56 PM, Paul Stenquist pnstenqu...@comcast.net wrote: Some nice theory here but no practical info. Have to buy the book for that I guess. Not that it wouldn't be a good investment. I can't get that radius adjustment mask to work on my Mac. Any clues? The alt key would seem to e option or command, but neither produces any kind of change in radius adjustment on either Smart Sharpen or Unsharp Mask. Best, Paul On Nov 21, 2013, at 3:53 PM, steve harley p...@paper-ape.com wrote: and here it is in the words of the great Bruce Fraser: http://www.peachpit.com/articles/article.aspx?p=608637 -- 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. -- David Parsons Photography http://www.davidparsonsphoto.com Aloha Photographer Photoblog http://alohaphotog.blogspot.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: Sharpening Radius?
Some nice theory here but no practical info. Have to buy the book for that I guess. Not that it wouldn't be a good investment. I can't get that radius adjustment mask to work on my Mac. Any clues? The alt key would seem to e option or command, but neither produces any kind of change in radius adjustment on either Smart Sharpen or Unsharp Mask. Best, Paul On Nov 21, 2013, at 3:53 PM, steve harley p...@paper-ape.com wrote: and here it is in the words of the great Bruce Fraser: http://www.peachpit.com/articles/article.aspx?p=608637 -- 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: Sharpening Radius?
on 2013-11-18 16:40 Igor Roshchin wrote I thought I would ask the gurus of digital processing here on PDML about this first. When you sharpen images, how do you choose the Radius? the principle is to sharpen the details you actually want to output these days i usually do it seat of the pants — since i rarely print i simply zoom to the screen size i have in mind and work from there by eye; if i later export the image at a different size, i redo the sharpening for print, in my prepress days, we would first resample the image to the intended output (at a ppi double the halftone lpi), then it would still be a judgment call based on the image; here is a decent article that expands on that concept with some specific recommendations for print vs. screen http://www.cambridgeincolour.com/tutorials/image-sharpening.htm -- 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: Sharpening Radius?
On Tue, Nov 19, 2013 at 1:40 AM, Igor Roshchin s...@komkon.org wrote: I thought I would ask the gurus of digital processing here on PDML about this first. When you sharpen images, how do you choose the Radius? http://www.peachpit.com/articles/article.aspx?p=1951754seqNum=4 It really depends on what you have in the photo, grass will require a smaller radius, a coffee cup a higher one. Hold down the Alt key as others said and eyeball it. -- Attila -- 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: Sharpening Radius?
I generally use only smart sharpen these days, unless I have a near miss situation, in which case I'll uise some unsharp mask. With the K-5, I set smart sharpen to about 65% with a radius of about 1.4, less for portraits. I've found that K-3 pics don't usually require any sharpening. Sometimes 50% with a radius of 1.0. Paul On Nov 19, 2013, at 1:30 AM, Ken Waller kwal...@peoplepc.com wrote: For initial sharpening, after conversion from DNG, I use the following - Amout of sharpening 350%, Radius - 0.3, Threshold - 0 levels Before printing - Amount of sharpening 350%, Radius 0.7, Threshold 3 levels. I adjust threshold downward to eliminate fringing. HTH Kenneth Waller http://www.pentaxphotogallery.com/kennethwaller - Original Message - From: Igor Roshchin s...@komkon.org Subject: Sharpening Radius? I thought I would ask the gurus of digital processing here on PDML about this first. When you sharpen images, how do you choose the Radius? Yes, I read in the guides this: Radius: Controls the size of the edges you wish to enhance, where a smaller radius enhances smaller-scale detail. You'll usually want a radius setting that is comparable to the size of the smallest detail within your image. But how do you practically determine that, say in LR? You cannot tell the difference if it is 0.9 or 1.1 pixels. Also, several years ago, I remember seeing an advice somewhere (possibly here), where a person used 0.9 or 0.8 value for that radius. But I never understood why. Any idea? Thanks, Igor -- 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: Sharpening Radius?
Many thanks to all who responded! Both the hint (Alt-) and the links are very helpful. Igor Date: Mon, 18 Nov 2013 18:40:50 -0500 (EST) From: Igor Roshchin I thought I would ask the gurus of digital processing here on PDML about this first. When you sharpen images, how do you choose the Radius? Yes, I read in the guides this: Radius: Controls the size of the edges you wish to enhance, where a smaller radius enhances smaller-scale detail. You'll usually want a radius setting that is comparable to the size of the smallest detail within your image. But how do you practically determine that, say in LR? You cannot tell the difference if it is 0.9 or 1.1 pixels. Also, several years ago, I remember seeing an advice somewhere (possibly here), where a person used 0.9 or 0.8 value for that radius. But I never understood why. Any idea? Thanks, Igor -- 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: Sharpening Radius?
Press and hold the Alt key while adjusting the Radius. It will show a high-pass looking overlay that shows the edges in the picture. As you slide the slider, the overlay will show you the effect of the changes. On Mon, Nov 18, 2013 at 6:40 PM, Igor Roshchin s...@komkon.org wrote: I thought I would ask the gurus of digital processing here on PDML about this first. When you sharpen images, how do you choose the Radius? Yes, I read in the guides this: Radius: Controls the size of the edges you wish to enhance, where a smaller radius enhances smaller-scale detail. You'll usually want a radius setting that is comparable to the size of the smallest detail within your image. But how do you practically determine that, say in LR? You cannot tell the difference if it is 0.9 or 1.1 pixels. Also, several years ago, I remember seeing an advice somewhere (possibly here), where a person used 0.9 or 0.8 value for that radius. But I never understood why. Any idea? Thanks, Igor -- 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. -- David Parsons Photography http://www.davidparsonsphoto.com Aloha Photographer Photoblog http://alohaphotog.blogspot.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: Sharpening Radius?
I used .7 to .9 as a standard with my Pentax photos, it seemed to suit the AA filter in the DS and K10D bodies well, and worked well with the 'average detailing' of the subjects I was shooting. With some of the more recent cameras and my current lenses, with very light to no AA filter, I am often finding I don't use any sharpening at all. Press the Option (Alt) key when clicking on the radius adjustment and you'll see the effect on the photo as you slide the control from minimum to maximum. That's how I came up with the setting. G On Nov 18, 2013, at 3:40 PM, Igor Roshchin s...@komkon.org wrote: … When you sharpen images, how do you choose the Radius? Yes, I read in the guides this: Radius: Controls the size of the edges you wish to enhance, where a smaller radius enhances smaller-scale detail. You'll usually want a radius setting that is comparable to the size of the smallest detail within your image. But how do you practically determine that, say in LR? You cannot tell the difference if it is 0.9 or 1.1 pixels. Also, several years ago, I remember seeing an advice somewhere (possibly here), where a person used 0.9 or 0.8 value for that radius. But I never understood why. Any idea? -- 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: Sharpening Radius?
For initial sharpening, after conversion from DNG, I use the following - Amout of sharpening 350%, Radius - 0.3, Threshold - 0 levels Before printing - Amount of sharpening 350%, Radius 0.7, Threshold 3 levels. I adjust threshold downward to eliminate fringing. HTH Kenneth Waller http://www.pentaxphotogallery.com/kennethwaller - Original Message - From: Igor Roshchin s...@komkon.org Subject: Sharpening Radius? I thought I would ask the gurus of digital processing here on PDML about this first. When you sharpen images, how do you choose the Radius? Yes, I read in the guides this: Radius: Controls the size of the edges you wish to enhance, where a smaller radius enhances smaller-scale detail. You'll usually want a radius setting that is comparable to the size of the smallest detail within your image. But how do you practically determine that, say in LR? You cannot tell the difference if it is 0.9 or 1.1 pixels. Also, several years ago, I remember seeing an advice somewhere (possibly here), where a person used 0.9 or 0.8 value for that radius. But I never understood why. Any idea? Thanks, Igor -- 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.
