Re: Pentax 1.4x converter

2014-02-14 Thread Joseph McAllister
On Feb 5, 2014, at 21:04 , John Francis wrote: > I look forward to finding out how well the new TC performs with all three > of my DA* zooms. I was pleasantly surprised to see that it is claimed to > work with lenses with a maximum aperture of f/4; that bodes well for the > 60-250. I wonder wha

Re: Pentax 1.4x converter

2014-02-14 Thread Joseph McAllister
On Feb 2, 2014, at 09:18 , Mark Roberts wrote: > Joseph McAllister wrote: > >> Definitely not a Pentax product shot, beta or whatever. > > In about two weeks we'll find out for certain. I'm pretty sure you're > wrong :) The image as announced by Pentax had a correction (more PS?) that allowed

Re: Pentax 1.4x converter

2014-02-06 Thread Mark Roberts
Rob Studdert wrote: >The Canon Lens EF 1.4X III Extender retails (from a shop that doesn't >deep discount) at AU$529 inc 10% GST or about US$475 Yep. That Canon teleconverter sells for $499 at B&H Photo. I expect real-world pricing of the Pentax to be right about there. -- PDML Pentax-Discuss

Re: Pentax 1.4x converter

2014-02-05 Thread John Francis
On Wed, Feb 05, 2014 at 07:59:51PM -0500, Stanley Halpin wrote: > > On Feb 5, 2014, at 7:45 PM, J.C. O'Connell wrote: > > > Zooms and TCs are not a good mix. > > > > Well, we shall see if that is still true. I found my 80-200 performed adequately with either the AF1.7x or a 1.4 TC. I look fo

Re: Pentax 1.4x converter

2014-02-05 Thread Ken Waller
I have the A-1.4X-S, X-L and the 2.0X-L and I didn't pay anything near $600 new for any of them ! Kenneth Waller http://www.pentaxphotogallery.com/kennethwaller - Original Message - From: "Miserere" Subject: Re: Pentax 1.4x converter Really Mark? You expecte

Re: Pentax 1.4x converter

2014-02-05 Thread Rob Studdert
The Canon Lens EF 1.4X III Extender retails (from a shop that doesn't deep discount) at AU$529 inc 10% GST or about US$475 On 6 February 2014 14:33, Mark Roberts wrote: > Rob Studdert wrote: > >>On 6 February 2014 11:54, Miserere wrote: >>> Really Mark? You expected it to be more expensive still

Re: Pentax 1.4x converter

2014-02-05 Thread Mark Roberts
Rob Studdert wrote: >On 6 February 2014 11:54, Miserere wrote: >> Really Mark? You expected it to be more expensive still? Jeez, I >> thought $600 for a 1.4x TC was eye gouging enough already. >> >I have to agree, $600 is pretty rich but so are most of Pentax's glass >offerings, I guess that's wh

Re: Pentax 1.4x converter

2014-02-05 Thread Rob Studdert
I have to agree, $600 is pretty rich but so are most of Pentax's glass offerings, I guess that's why I tend towards Sigma now. On 6 February 2014 11:54, Miserere wrote: > Really Mark? You expected it to be more expensive still? Jeez, I > thought $600 for a 1.4x TC was eye gouging enough already.

Re: Pentax 1.4x converter

2014-02-05 Thread J.C. O'Connell
Too many elements increases flare, lowers contrast, and lowers resolution. TCs work better with good primes. On 2/5/2014 7:59 PM, Stanley Halpin wrote: On Feb 5, 2014, at 7:45 PM, J.C. O'Connell wrote: Zooms and TCs are not a good mix. Well, we shall see if that is still true. stan On 2/

Re: Pentax 1.4x converter

2014-02-05 Thread Margus Männik
We'll see... I wouldn't be much surprised if it actually can be used also with older bodies, even film-eating ones. VBR, Margus On 6.02.2014 1:26, Bruce Walker wrote: So now we know: $599.95 PR from Ricoh quoted by dpreview contradicts some of asahi man's info. Won't work with cameras older

Re: Pentax 1.4x converter

2014-02-05 Thread P.J. Alling
Hey, you've still got one eye left... On 2/5/2014 7:54 PM, Miserere wrote: Really Mark? You expected it to be more expensive still? Jeez, I thought $600 for a 1.4x TC was eye gouging enough already. Cheers, --M. \/\/o/\/\ --> http://WorldOfMiserere.com http://EnticingTheLight.

Re: Pentax 1.4x converter

2014-02-05 Thread Stanley Halpin
On Feb 5, 2014, at 7:45 PM, J.C. O'Connell wrote: > Zooms and TCs are not a good mix. > Well, we shall see if that is still true. stan > > On 2/5/2014 6:41 PM, Bruce wrote: >> I didn't see the DA* 50-135 listed for either compatible or incompatible. >> Did I miss it somehow?? >> >> -- >>

Re: Pentax 1.4x converter

2014-02-05 Thread Miserere
Really Mark? You expected it to be more expensive still? Jeez, I thought $600 for a 1.4x TC was eye gouging enough already. Cheers, --M. \/\/o/\/\ --> http://WorldOfMiserere.com http://EnticingTheLight.com A Quest for Photographic Enlightenment On 5 February 2014 18:32, Mark

Re: Pentax 1.4x converter

2014-02-05 Thread J.C. O'Connell
Zooms and TCs are not a good mix. On 2/5/2014 6:41 PM, Bruce wrote: I didn't see the DA* 50-135 listed for either compatible or incompatible. Did I miss it somehow?? -- Bruce Sent from my iPad On Feb 5, 2014, at 3:32 PM, Mark Roberts wrote: Bruce Walker wrote: So now we know: $599.95

Re: Pentax 1.4x converter

2014-02-05 Thread Paul Stenquist
I’m in. On Feb 5, 2014, at 6:32 PM, Mark Roberts wrote: > Bruce Walker wrote: > >> So now we know: $599.95 >> >> PR from Ricoh quoted by dpreview contradicts some of asahi man's info. >> Won't work with cameras older than K-7. Cameras will need firmware >> update. >> >> http://www.dpreview.

Re: Pentax 1.4x converter

2014-02-05 Thread Mark Roberts
Bruce wrote: >I didn't see the DA* 50-135 listed for either compatible or incompatible. Did >I miss it somehow?? It's listed. 5th one down. >>> http://www.dpreview.com/news/2014/02/05/ricoh-announces-hd-pentax-da-af-1-4x-aw-rear-converter -- Mark Roberts - Photography & Multimedia www.rober

Re: Pentax 1.4x converter

2014-02-05 Thread Bruce
I didn't see the DA* 50-135 listed for either compatible or incompatible. Did I miss it somehow?? -- Bruce Sent from my iPad > On Feb 5, 2014, at 3:32 PM, Mark Roberts wrote: > > Bruce Walker wrote: > >> So now we know: $599.95 >> >> PR from Ricoh quoted by dpreview contradicts some of as

Re: Pentax 1.4x converter

2014-02-05 Thread Mark Roberts
Bruce Walker wrote: >So now we know: $599.95 > >PR from Ricoh quoted by dpreview contradicts some of asahi man's info. >Won't work with cameras older than K-7. Cameras will need firmware >update. > >http://www.dpreview.com/news/2014/02/05/ricoh-announces-hd-pentax-da-af-1-4x-aw-rear-converter Tha

Re: Pentax 1.4x converter

2014-02-05 Thread Bruce Walker
So now we know: $599.95 PR from Ricoh quoted by dpreview contradicts some of asahi man's info. Won't work with cameras older than K-7. Cameras will need firmware update. http://www.dpreview.com/news/2014/02/05/ricoh-announces-hd-pentax-da-af-1-4x-aw-rear-converter On Tue, Feb 4, 2014 at 10:25 P

Re: Pentax 1.4x converter

2014-02-04 Thread Darren Addy
Additional converter details today from "asahi man": "TC is ready and works perfect,good quality,needs no firmware update,cause all IDs are in the TC." "Works with "all Pentax cams". Source(s): http://www.dpreview.com/forums/thread/3618741?page=2#forum-post-53048033 http://www.dpreview.com/forums/

Re: Pentax 1.4x converter

2014-02-02 Thread Mark Roberts
Joseph McAllister wrote: >Definitely not a Pentax product shot, beta or whatever. In about two weeks we'll find out for certain. I'm pretty sure you're wrong :) -- Mark Roberts - Photography & Multimedia www.robertstech.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/

Re: Pentax 1.4x converter

2014-02-01 Thread Joseph McAllister
On Jan 27, 2014, at 12:42 , steve harley wrote: > on 2014-01-27 12:20 Mark Roberts wrote >> I think the text on the barrel was Photoshopped in but I think it's a >> genuine Pentax product shot done from a pre-production prototype. > > i think the whole thing is a fake; every detail of mount surf

Re: Pentax 1.4x converter

2014-01-31 Thread Mark C
I just tried my DA 16-45 with a Sigma 1.4 AF teleconverter on a Pz-1p. There is little light falloff visible in the viewfinder and any focal lengeth, though I don't think I can reach a conclusion based on that. I don't trust my eyes to see a couple EV in light drop off, which would be pretty o

Re: Pentax 1.4x converter

2014-01-28 Thread P.J. Alling
On 1/28/2014 2:17 PM, P.J. Alling wrote: On 1/28/2014 9:45 AM, Bruce Walker wrote: On Tue, Jan 28, 2014 at 2:55 AM, Larry Colen wrote: On Tue, Jan 28, 2014 at 12:40:19AM -0500, Ken Waller wrote: - Original Message - From: "Bruce Walker" Subject: Re: Pentax 1.4x converte

Re: Pentax 1.4x converter

2014-01-28 Thread CollinB
> Ah shit. So Hoya fired the guy who created my fave lens, the DA* > 55/1.4. Unbelievable. What a bunch of maroons. He probably didn't want to do endoscopes. >>> That's just an innuendo. >> Its also a slippery slope > Will these endoscope jokes ever be behind us

Re: Pentax 1.4x converter

2014-01-28 Thread Mark Roberts
"Ken Waller" wrote: >> On 1/28/2014 9:45 AM, Bruce Walker wrote: >>> On Tue, Jan 28, 2014 at 2:55 AM, Larry Colen wrote: >>>> On Tue, Jan 28, 2014 at 12:40:19AM -0500, Ken Waller wrote: >>>>> - Original Message - From: "Bruc

Re: Pentax 1.4x converter

2014-01-28 Thread Ken Waller
Kenneth Waller http://www.pentaxphotogallery.com/kennethwaller - Original Message - From: "P.J. Alling" Subject: Re: Pentax 1.4x converter On 1/28/2014 9:45 AM, Bruce Walker wrote: On Tue, Jan 28, 2014 at 2:55 AM, Larry Colen wrote: On Tue, Jan 28, 2014 at 12:40:19AM

Re: Pentax 1.4x converter

2014-01-28 Thread Ken Waller
These jokes could have been funny but this list just wrecked em. Rectum, hell it dam near kills them. Kenneth Waller http://www.pentaxphotogallery.com/kennethwaller - Original Message - From: "Larry Colen" Subject: Re: Pentax 1.4x converter These jokes could have been

Re: Pentax 1.4x converter

2014-01-28 Thread Ken Waller
/kennethwaller - Original Message - From: "Mark Roberts" Subject: Re: Pentax 1.4x converter New information: Asahi Man says the new teleconverter is an update of one designed under Hoya (in 2008) but never put into production. He also indicates there are considerable electron

Re: Pentax 1.4x converter

2014-01-28 Thread P.J. Alling
On 1/28/2014 9:45 AM, Bruce Walker wrote: On Tue, Jan 28, 2014 at 2:55 AM, Larry Colen wrote: On Tue, Jan 28, 2014 at 12:40:19AM -0500, Ken Waller wrote: - Original Message - From: "Bruce Walker" Subject: Re: Pentax 1.4x converter On Mon, Jan 27, 2014 at 4:55 PM, Ma

Re: Pentax 1.4x converter

2014-01-28 Thread John
On 1/28/2014 9:24 AM, Mark Roberts wrote: New information: Asahi Man says the new teleconverter is an update of one designed under Hoya (in 2008) but never put into production. He also indicates there are considerable electronics inside the converter which will necessitate firmware updates for c

Re: Pentax 1.4x converter

2014-01-28 Thread Larry Colen
These jokes could have been funny but this list just wrecked em. On January 28, 2014 7:53:03 AM PST, Paul Stenquist wrote: > >On Jan 28, 2014, at 10:28 AM, Godfrey DiGiorgi >wrote: > >> He probably didn't want to do endoscopes. >>> >>> That's just an innuendo. >> >>

Re: Pentax 1.4x converter

2014-01-28 Thread Darren Addy
Remind me never to be the butt of your jokes. On Tue, Jan 28, 2014 at 9:28 AM, Godfrey DiGiorgi wrote: > >>> He probably didn't want to do endoscopes. >> >> That's just an innuendo. > > Its also a slippery slope Will these endoscope jokes ever be behind us? >>> >>> W

Re: Pentax 1.4x converter

2014-01-28 Thread Paul Stenquist
On Jan 28, 2014, at 10:28 AM, Godfrey DiGiorgi wrote: > >>> He probably didn't want to do endoscopes. >> >> That's just an innuendo. > > Its also a slippery slope Will these endoscope jokes ever be behind us? >>> >>> We have not touched bottom. >>> >> I think

Re: Pentax 1.4x converter

2014-01-28 Thread Godfrey DiGiorgi
>> He probably didn't want to do endoscopes. > > That's just an innuendo. Its also a slippery slope >>> >>> Will these endoscope jokes ever be behind us? >> >> We have not touched bottom. >> > I think you've put your finger on it. Hmm. That must be the end. -- PDML Pe

Re: Pentax 1.4x converter

2014-01-28 Thread CollinB
>>> >>He probably didn't want to do endoscopes. >>> > >>> >That's just an innuendo. >>> >>> Its also a slippery slope >> >> Will these endoscope jokes ever be behind us? > >We have not touched bottom. > I think you've put your finger on it. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://p

Re: Pentax 1.4x converter

2014-01-28 Thread Bruce Walker
On Tue, Jan 28, 2014 at 2:55 AM, Larry Colen wrote: > On Tue, Jan 28, 2014 at 12:40:19AM -0500, Ken Waller wrote: >> >> - Original Message - From: "Bruce Walker" >> >> Subject: Re: Pentax 1.4x converter >> >> >On Mon, Jan 27, 2014

Re: Pentax 1.4x converter

2014-01-28 Thread Mark Roberts
New information: Asahi Man says the new teleconverter is an update of one designed under Hoya (in 2008) but never put into production. He also indicates there are considerable electronics inside the converter which will necessitate firmware updates for cameras to be able to sue it. -- PDML Penta

Re: Pentax 1.4x converter

2014-01-27 Thread Larry Colen
On Tue, Jan 28, 2014 at 12:40:19AM -0500, Ken Waller wrote: > > Kenneth Waller > http://www.pentaxphotogallery.com/kennethwaller > > - Original Message - From: "Bruce Walker" > > Subject: Re: Pentax 1.4x converter > > > >On Mon, Jan 27, 2014

Re: Pentax 1.4x converter

2014-01-27 Thread Ken Waller
Kenneth Waller http://www.pentaxphotogallery.com/kennethwaller - Original Message - From: "Bruce Walker" Subject: Re: Pentax 1.4x converter On Mon, Jan 27, 2014 at 4:55 PM, Matthew Hunt wrote: On Mon, Jan 27, 2014 at 4:52 PM, Bruce Walker wrote: Ah shit. So Hoya

Re: Pentax 1.4x converter

2014-01-27 Thread Collin Brendemuehl
I hope this 1.4x does not act as a pseudo-adapter. Canon did that way back with their early DSLRs. Did not go over very well, though their adaptation was handled than what is talked about here. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSU

Re: Pentax 1.4x converter

2014-01-27 Thread Bruce Walker
On Mon, Jan 27, 2014 at 4:55 PM, Matthew Hunt wrote: > On Mon, Jan 27, 2014 at 4:52 PM, Bruce Walker wrote: > >> Ah shit. So Hoya fired the guy who created my fave lens, the DA* >> 55/1.4. Unbelievable. What a bunch of maroons. > > He probably didn't want to do endoscopes. That's just an innuend

Re: Pentax 1.4x converter

2014-01-27 Thread Darren Addy
On Mon, Jan 27, 2014 at 3:28 PM, John wrote: > I expect it is "full-frame" in the sense that it would not vignette the > image from a "full-frame" lens. I don't see how it would make an APS-C > lens have a larger image circle. You can demonstrate it for yourself with a card held behind the lens

Re: Pentax 1.4x converter

2014-01-27 Thread Matthew Hunt
On Mon, Jan 27, 2014 at 4:52 PM, Bruce Walker wrote: > Ah shit. So Hoya fired the guy who created my fave lens, the DA* > 55/1.4. Unbelievable. What a bunch of maroons. He probably didn't want to do endoscopes. ("The bokeh looks like shit!") -- PDML Pentax-Discuss Mail List PDML@pdml.net http

Re: Pentax 1.4x converter

2014-01-27 Thread Bruce Walker
Ah shit. So Hoya fired the guy who created my fave lens, the DA* 55/1.4. Unbelievable. What a bunch of maroons. On Mon, Jan 27, 2014 at 4:13 PM, Darren Addy wrote: > Unrelated to the 1.4x, but I've been reviewing the recent posts of > Asahi Man on dpreview. He recently said this: > "Yes, Ricoh is

Re: Pentax 1.4x converter

2014-01-27 Thread Matthew Hunt
On Mon, Jan 27, 2014 at 4:28 PM, John wrote: > I expect it is "full-frame" in the sense that it would not vignette the > image from a "full-frame" lens. I don't see how it would make an APS-C > lens have a larger image circle. Enlarging the image is what teleconverters do. If it doesn't vignette

Re: Pentax 1.4x converter

2014-01-27 Thread Dario Bonazza
more or less as much as needed by a 24x36mm image (unless it is vignetted by some hardware). Dario -Messaggio originale- From: John Sent: Monday, January 27, 2014 10:28 PM To: Pentax-Discuss Mail List Subject: Re: Pentax 1.4x converter On 1/27/2014 3:21 PM, Matthew Hunt wrote: On Mon

Re: Pentax 1.4x converter

2014-01-27 Thread Dario Bonazza
vignetted by some hardware). Dario -Messaggio originale- From: John Sent: Monday, January 27, 2014 10:28 PM To: Pentax-Discuss Mail List Subject: Re: Pentax 1.4x converter On 1/27/2014 3:21 PM, Matthew Hunt wrote: On Mon, Jan 27, 2014 at 3:17 PM, Dario Bonazza wrote: Great, but

Re: Pentax 1.4x converter

2014-01-27 Thread John
On 1/27/2014 3:21 PM, Matthew Hunt wrote: On Mon, Jan 27, 2014 at 3:17 PM, Dario Bonazza wrote: Great, but what's the point of spreading the same amount of light gathered by the same front lens on a larger sensor having say the same pixel count (e.g. 24 MP) while losing one stop for exposure?

Re: Pentax 1.4x converter

2014-01-27 Thread Darren Addy
Unrelated to the 1.4x, but I've been reviewing the recent posts of Asahi Man on dpreview. He recently said this: "Yes, Ricoh is the best for Pentax since a very long time.Hoya...Hoya fired Jun Hirakawa...Anybody knows who Jun Hirakawa is?" Well I didn't, but I do now: http://camerapedia.wikia.com/

Re: Pentax 1.4x converter

2014-01-27 Thread steve harley
on 2014-01-27 13:53 Dario Bonazza wrote Don't you think such images supplied at the time of news releases can just be photo-realistic renderings? to produce images prior to production, i would think Ricoh would render from a 3D model rather than sloppily paste together a mount, a body and some

Re: Pentax 1.4x converter

2014-01-27 Thread P.J. Alling
nazza Sent: Monday, January 27, 2014 9:04 PM To: Pentax-Discuss Mail List Subject: Re: Pentax 1.4x converter No, the 14mm x 1.4x will become a 19.6mm f/4 in itself, whichever camera (if any) you put behind it. In case the resulting image will be large enough to cover the 24x36mm format (not yet

Re: Pentax 1.4x converter

2014-01-27 Thread Dario Bonazza
tical perspective, reflections and all. You could superimpose them perfectly. Suspect, to me. Dario -Messaggio originale- From: Dario Bonazza Sent: Monday, January 27, 2014 9:53 PM To: Pentax-Discuss Mail List Subject: Re: Pentax 1.4x converter Don't you think such images supplied at t

Re: Pentax 1.4x converter

2014-01-27 Thread steve harley
on 2014-01-27 13:44 Darren Addy wrote I would think that also, except for the fact that Asahi Man is saying the things that he is saying. as poor Asahi Man's reputation is on the line, i will allow that the product may be real, but the image is a simulation -- PDML Pentax-Discuss Mail List

Re: Pentax 1.4x converter

2014-01-27 Thread Dario Bonazza
Don't you think such images supplied at the time of news releases can just be photo-realistic renderings? Dario -Messaggio originale- From: steve harley Sent: Monday, January 27, 2014 9:42 PM To: Pentax-Discuss Mail List Subject: Re: Pentax 1.4x converter on 2014-01-27 12:20

Re: Pentax 1.4x converter

2014-01-27 Thread Darren Addy
I would think that also, except for the fact that Asahi Man is saying the things that he is saying. On Mon, Jan 27, 2014 at 2:42 PM, steve harley wrote: > on 2014-01-27 12:20 Mark Roberts wrote > >> I think the text on the barrel was Photoshopped in but I think it's a >> genuine Pentax product sh

Re: Pentax 1.4x converter

2014-01-27 Thread Matthew Hunt
On Mon, Jan 27, 2014 at 3:38 PM, Darren Addy wrote: > I don't have a 1.4x to test here at work with me, but I'm pretty sure > that would allow it to cover the corners at 24-63mm also. Note that DA lenses have to have an image circle somewhat larger than APS-C, in order to accommodate sensor move

Re: Pentax 1.4x converter

2014-01-27 Thread steve harley
on 2014-01-27 12:20 Mark Roberts wrote I think the text on the barrel was Photoshopped in but I think it's a genuine Pentax product shot done from a pre-production prototype. i think the whole thing is a fake; every detail of mount surface has highlights indicating a light source to the left,

Re: Pentax 1.4x converter

2014-01-27 Thread Darren Addy
ens on a larger sensor having say the same pixel count >>> (e.g. 24 MP) while losing one stop for exposure? >>> >>> >>> Dario >>> >>> >>> -Messaggio originale- From: Dario Bonazza >>> Sent: Monday, January 27, 2014 9:08 PM

Re: Pentax 1.4x converter

2014-01-27 Thread Paul Stenquist
gt;> >> >> Dario >> >> >> -Messaggio originale- From: Dario Bonazza >> Sent: Monday, January 27, 2014 9:08 PM >> >> To: Pentax-Discuss Mail List >> Subject: Re: Pentax 1.4x converter >> >> In other words, a 14mm x 1.4x

Re: Pentax 1.4x converter

2014-01-27 Thread Darren Addy
Someone suggests taking any 1.4x teleconverter and putting one of the problematic (non-full-frame-covering) DA lenses on a full frame Pentax film camera and seeing what it looks like. So I just took a DA 16-45mm and stuck it on a ME body. Vignettes hard at the corners at 16mm. Then I put a Rear Co

Re: Pentax 1.4x converter

2014-01-27 Thread Darren Addy
>> >> >> Dario >> >> >> -----Messaggio originale- From: Dario Bonazza >> Sent: Monday, January 27, 2014 9:08 PM >> >> To: Pentax-Discuss Mail List >> Subject: Re: Pentax 1.4x converter >> >> In other words, a 14mm x 1.4x becomes

Re: Pentax 1.4x converter

2014-01-27 Thread Darren Addy
; Sent: Monday, January 27, 2014 9:08 PM > > To: Pentax-Discuss Mail List > Subject: Re: Pentax 1.4x converter > > In other words, a 14mm x 1.4x becomes a true 19.6mm lens - hence > irrespectively of sensor size - and not an "equivalent to XY mm" on a given > format. &

Re: Pentax 1.4x converter

2014-01-27 Thread Matthew Hunt
On Mon, Jan 27, 2014 at 3:17 PM, Dario Bonazza wrote: > Great, but what's the point of spreading the same amount of light gathered by > the same front lens on a larger sensor having say the same pixel count (e.g. > 24 MP) while losing one stop for exposure? To smooth the transition for people

Re: Pentax 1.4x converter

2014-01-27 Thread Dario Bonazza
-Messaggio originale- From: Dario Bonazza Sent: Monday, January 27, 2014 9:08 PM To: Pentax-Discuss Mail List Subject: Re: Pentax 1.4x converter In other words, a 14mm x 1.4x becomes a true 19.6mm lens - hence irrespectively of sensor size - and not an "equivalent to XY mm" on a given for

Re: Pentax 1.4x converter

2014-01-27 Thread Darren Addy
s whether such a combo of lens and TC will give > an image circle covering 24x36mm format or not. > Dario > > -Messaggio originale- From: Dario Bonazza > Sent: Monday, January 27, 2014 9:04 PM > > To: Pentax-Discuss Mail List > Subject: Re: Pentax 1.4x converter > >

Re: Pentax 1.4x converter

2014-01-27 Thread Darren Addy
You are close. What get's cancelled out is that the effective FOV becomes close to the actual FOV of the converted lens. But the focal length and speed changes (1.4x and 1 stop of light). On Mon, Jan 27, 2014 at 1:54 PM, Alastair Robertson wrote: > wouldn't the lack of a 1.54 crop factor that APC

Re: Pentax 1.4x converter

2014-01-27 Thread Dario Bonazza
ot. Dario -Messaggio originale- From: Dario Bonazza Sent: Monday, January 27, 2014 9:04 PM To: Pentax-Discuss Mail List Subject: Re: Pentax 1.4x converter No, the 14mm x 1.4x will become a 19.6mm f/4 in itself, whichever camera (if any) you put behind it. In case the resulting image will be large

Re: Pentax 1.4x converter

2014-01-27 Thread Dario Bonazza
- From: Alastair Robertson Sent: Monday, January 27, 2014 8:54 PM To: Pentax-Discuss Mail List Subject: Re: Pentax 1.4x converter wouldn't the lack of a 1.54 crop factor that APC-S sensor cameras have over 35mm frame more-or-less cancel out the 1.4x converter effect so that a DA14mm + 1.4TC

Re: Pentax 1.4x converter

2014-01-27 Thread Alastair Robertson
wouldn't the lack of a 1.54 crop factor that APC-S sensor cameras have over 35mm frame more-or-less cancel out the 1.4x converter effect so that a DA14mm + 1.4TC on a 35mm frame would end up being a 14/1.54 x 1.4 = 12.7mm FOV on full frame? Alastair On 28 January 2014 08:42, Darren Addy wrote: >

Re: Pentax 1.4x converter

2014-01-27 Thread Darren Addy
On Sun, Jan 26, 2014 at 10:07 AM, Mark Roberts wrote: > (which he says Pentax is calling a "Full Frame Converter") WUTT If this is true, is it possible that the converter will allow DA lenses (that don't quite cover full frame) to cover them adequately (albeit at 1.4x the focal length). This wou

Re: Pentax 1.4x converter

2014-01-27 Thread Mark Roberts
"CollinB" wrote: >On Mon Jan 27 10:08:24 AM, John Sessoms wrote: >>On 1/26/2014 12:08 PM, Collin Brendemuehl wrote: >>> >http://www.pentaxforums.com/news/pentax-14x-sdm-teleconverter-surfaces.html >>> >>> I was looking at the picture and something bothered me. >>> The curvature of the text does n

Re: Pentax 1.4x converter

2014-01-27 Thread CollinB
On Mon Jan 27 10:08:24 AM, John Sessoms wrote: >On 1/26/2014 12:08 PM, Collin Brendemuehl wrote: >> http://www.pentaxforums.com/news/pentax-14x-sdm-teleconverter-surfaces.html >> >> I was looking at the picture and something bothered me. >> The curvature of the text does not match the curvature of

Re: Pentax 1.4x converter

2014-01-27 Thread John
On 1/26/2014 12:08 PM, Collin Brendemuehl wrote: http://www.pentaxforums.com/news/pentax-14x-sdm-teleconverter-surfaces.html I was looking at the picture and something bothered me. The curvature of the text does not match the curvature of the tc body. The item may exist, but that picture is not

Re: Pentax 1.4x converter

2014-01-26 Thread Collin Brendemuehl
http://www.pentaxforums.com/news/pentax-14x-sdm-teleconverter-surfaces.html I was looking at the picture and something bothered me. The curvature of the text does not match the curvature of the tc body. The item may exist, but that picture is not of a real object. -- PDML Pentax-Discuss Mail Li

Re: Pentax 1.4x converter

2014-01-26 Thread Mark Roberts
Stanley Halpin wrote: >I do not frequent the PF, I only see things there when someone here provides >a link. So I have no way to evaluate the credibility of this rumor. It's been confirmed by a guy who goes by the moniker of "Asahi Man" on DP Review's Pentax board. Asahi Man seems to have some w

Re: Pentax 1.4x converter

2014-01-25 Thread Matthew Hunt
On Sat, Jan 25, 2014 at 8:17 PM, Miserere wrote: > I found my Tamron 1.4x TC worked just fine. With SDM? I've got one, that everyone says works with SDM, and I don't find it to work that well at all with my DA* 300/4. The optical quality is good, but whenever the camera attempts to AF, it overs

Re: Pentax 1.4x converter

2014-01-25 Thread Mark Roberts
Miserere wrote: >That didn't take them long, did it? How long have people been >*pleading* for one of these? 5 years? 7 years? > >I found my Tamron 1.4x TC worked just fine. I expect this TC to be *much* better than the Tamron. And to be very expensive. -- Mark Roberts - Photography & Multimed

Re: Pentax 1.4x converter

2014-01-25 Thread Miserere
That didn't take them long, did it? How long have people been *pleading* for one of these? 5 years? 7 years? I found my Tamron 1.4x TC worked just fine. Cheers, —M. \/\/o/\/\ --> http://WorldOfMiserere.com http://EnticingTheLight.com A Quest for Photographic Enlightenment On

Re: Pentax 1.4x converter

2014-01-25 Thread Paul Stenquist
Ditto. Paul via phone > On Jan 25, 2014, at 7:03 PM, Stanley Halpin > wrote: > > >> On Jan 25, 2014, at 4:16 PM, Dario Bonazza wrote: >> >> Is that your dream? >> http://www.pentaxforums.com/forums/16-pentax-news-rumors/249449-image-hd-pentax-1-4x-teleconverter.html >> Are you sure? >> >>

Re: Pentax 1.4x converter

2014-01-25 Thread Stanley Halpin
On Jan 25, 2014, at 4:16 PM, Dario Bonazza wrote: > Is that your dream? > http://www.pentaxforums.com/forums/16-pentax-news-rumors/249449-image-hd-pentax-1-4x-teleconverter.html > Are you sure? > > Dario > I do not frequent the PF, I only see things there when someone here provides a link.

Pentax 1.4x converter

2014-01-25 Thread Dario Bonazza
Is that your dream? http://www.pentaxforums.com/forums/16-pentax-news-rumors/249449-image-hd-pentax-1-4x-teleconverter.html Are you sure? Dario -- 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 dir