Re: DA Lenses, Entrance Pupil

2007-08-09 Thread Toine
The poster also posted this: Please take note that for six shots and 17 mm, the NPP is some millimeters backwards from the shown position. To put it simply: the NPP is about fixed from 10 mm (four shots around) to 17 mm (six shots around). On 8/9/07, Toine [EMAIL PROTECTED] wrote: I found this

Re: DA Lenses, Entrance Pupil

2007-08-09 Thread Toine
I found this on the panotools list: http://michel.thoby.free.fr/Tokina_10_17/NPP-Tokina.jpg On 8/8/07, jon carver [EMAIL PROTECTED] wrote: Hi All, I've been using a couple DA lenses in panoramic shots and was hoping to compare the results of my experiment to determine the location of the

Re: DA lenses on 35mm (found some info)

2007-03-12 Thread Joseph Tainter
Richard Day has posted a scan of an image taken with the DA 14 on film: http://forums.dpreview.com/forums/read.asp?forum=1036message=22421936 It clearly won't work with any sensor much larger than what we have. In my mind, this greatly diminishes the possibility that Pentax will ever bring out

Re: DA lenses on 35mm (found some info)

2007-03-12 Thread Godfrey DiGiorgi
Makes a great 24x24 mm Pentax Superwide on a 35mm body ... http://homepage.mac.com/godders/DA14FF-sq.jpg G On Mar 12, 2007, at 1:41 PM, Joseph Tainter wrote: Richard Day has posted a scan of an image taken with the DA 14 on film:

Re: DA lenses on 35mm (found some info)

2007-03-12 Thread Juan Buhler
On 3/12/07, Godfrey DiGiorgi [EMAIL PROTECTED] wrote: Makes a great 24x24 mm Pentax Superwide on a 35mm body ... http://homepage.mac.com/godders/DA14FF-sq.jpg Which brings to mind... There's really no specific reason for DSLRs sensors to be rectangular, except for the size of mirror and

Re: DA lenses on 35mm (found some info)

2007-03-12 Thread Godfrey DiGiorgi
On Mar 12, 2007, at 5:35 PM, Juan Buhler wrote: On 3/12/07, Godfrey DiGiorgi [EMAIL PROTECTED] wrote: Makes a great 24x24 mm Pentax Superwide on a 35mm body ... http://homepage.mac.com/godders/DA14FF-sq.jpg Which brings to mind... There's really no specific reason for DSLRs sensors to

Re: DA* Lenses

2006-09-20 Thread Doug Franklin
Cameron Hood wrote: http://www.pentax.co.jp/japan/news/2006/press-image/200646-05.jpg Now if they'll just come out with quality 1.4X and 2X teleconverters similar to the A-XS ones, that are compatible with at least the supersonic AF, but also (hopefully) the older blade AF ... -- Thanks, DougF

Re: DA lenses on FF

2006-02-25 Thread Thibouille
What about DA18-55 ? -- Thibouille -- *ist-D,Z1,SFXn,SuperA,KX,MX, P30t and KR-10x ...

Re: DA lenses on FF

2006-02-25 Thread David
Looks like it's fine past 24mm. I've just checked it through the view finder though. Thibouille wrote: What about DA18-55 ? -- Thibouille -- *ist-D,Z1,SFXn,SuperA,KX,MX, P30t and KR-10x ... .

Re: DA lenses on FF

2006-02-25 Thread Thibouille
Looks like it's fine past 24mm. I've just checked it through the view finder though. Thibouille wrote: What about DA18-55 ? Thanks for checking ;) -- Thibouille -- *ist-D,Z1,SFXn,SuperA,KX,MX, P30t and KR-10x ...

Re: DA lenses on FF

2006-02-24 Thread Godfrey DiGiorgi
On Feb 24, 2006, at 2:26 PM, Paweł Czarnul wrote: 1. DA 16-45 Covers 24x36 from about 22-24mm up. 5. DA 14 ??? - I assume no here. Covers 24x24. 6. DA 40 - I have heard yes. Many have said yes. Godfrey

Re: DA lenses on FF

2006-02-24 Thread William Robb
- Original Message - From: Pawel Czarnul Subject: DA lenses on FF Hello All, I would like to know which DA lenses can be used on FF (i.e. film) and what focal lengths. I refer to covering the entire frame. In particular: 1. DA 16-45 2. DA 10-17 FE 3. DA 12-24 4. DA 50-200 5. DA

Re: DA lenses on FF

2006-02-24 Thread Unca Mikey
DA 40 - I have heard yes. I bought a DA 40mm to use on 35mm -- works fine, it's a great lens. * UncaMikey

Re: DA lenses and Stan's site

2005-04-20 Thread Stan Halpin
I am accumulating the comments as they occur. The DA lenses (and the several other missing newer lenses) will be incorporated next time around. Stan On Apr 20, 2005, at 1:10 AM, Thibouille wrote: None of the DA lenses are on Stan's site. Is that deliberate or are they just too recent to have

Re: DA lenses and Stan's site

2005-04-20 Thread Thibouille
Alright, thanks for the information. BTW I take the opportunity to thank you for your site and the work you do. It gives a very interesting source of information on lenses. Thanks! 2005/4/20, Stan Halpin [EMAIL PROTECTED]: I am accumulating the comments as they occur. The DA lenses (and the

Re: DA lenses : quote :The Fifth element :was it Green ?

2004-03-17 Thread Jostein
Hi, Clover I agree with you. It's not a nice colour, but I think it's traditional. The A* lenses had a rubber ring of the same colour to mark it's asterisk-ness. At least my 645 A* 300/4 has one. Cheers, Jostein - Original Message - From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent:

re: DA lenses

2004-03-11 Thread Mike Ignatiev
From: edwin I think the answer is that the DA lenses are smaller than they would be if they were not DA. Does anybody make a 16-45 that covers 35mm format? Sigma's 15-35 is not exactly small. by the same reasoning lenses in 35mm format and, say, 6x6, covering the same angle, should be