David thanks for your offer but the question isn't fringing. I would like to know if an A lens on the A setting and on the manual aperture setting closes it's aperture blades to the same position. In theory it should be the same. My lens shows different closing and I'm wondering if it's normal or some sort of misalignment.
Toine On 24 March 2010 18:32, David J Brooks <[email protected]> wrote: > I have the K version, its not great on my K10D, but acceptable for web stuff. > > I can look and see if i have any fringing, my concern was it appears a > bit softer than it should. > > IIRC i tried it with a roll of Tmax on the PZ-1 and got a decent > result, mind you i processed it my self and printed it on a crappy > dark room set up. > > Dave > > On Wed, Mar 24, 2010 at 12:07 PM, Toine <[email protected]> wrote: >> No owners of a A400/5.6 who want to do some aperturepeeping? I would >> appreciate it before sending it to Pentax ;) >> >> Toine >> >> On 21 March 2010 19:32, Toine <[email protected]> wrote: >>> The recent discussions about the A400/5.6 made me wonder about my copy >>> and I gave it a torture test (didn't use it on the K20). Heavy >>> overcast sky etc. >>> >>> http://www.repiuk.nl/index.php/blog-mainmenu-97/121-sparrow >>> >>> Not bad a little fringing that's all. >>> >>> I did notice something odd, could the owners of this lens check this >>> - Put the lens on f/8, look in the lens and use the preview function >>> (the off on * switch) >>> - Put the lens on A and set the aperture of the camera at f/8 look >>> through the lens and use the preview button. >>> >>> My copy shows different closings of the aperture maybe half a stop. >>> exposure is ok. If this isn't normal I think I have it scheduled for a >>> checkup. >>> >>> Toine >>> >> >> -- >> PDML Pentax-Discuss Mail List >> [email protected] >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> to UNSUBSCRIBE from the PDML, please visit the link directly above and >> follow the directions. >> > > > > -- > Documenting Life in Rural Ontario. > www.caughtinmotion.com > http://brooksinthecountry.blogspot.com/ > York Region, Ontario, Canada > > -- > PDML Pentax-Discuss Mail List > [email protected] > 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 [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
