Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
12-09-2013, 09:08 PM   #31
Pentaxian




Join Date: Nov 2011
Photos: Gallery | Albums
Posts: 3,615
QuoteOriginally posted by stevebrot Quote
What is even more puzzling is that there is another thread on MF Forum where a user posts photos from the same lens taken with a Sony A700 FF.
At short range?

Or maybe doing a quick focus to infinity
after mirror lockup with the 2-second timer?

12-10-2013, 12:06 AM   #32
Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 26,231
QuoteOriginally posted by lytrytyr Quote
At short range?

Or maybe doing a quick focus to infinity
after mirror lockup with the 2-second timer?
Or perhaps an articulated mirror.


Steve
12-10-2013, 11:42 AM   #33
Pentaxian
titrisol's Avatar

Join Date: Dec 2007
Location: In the most populated state... state of denial
Photos: Gallery | Albums
Posts: 1,094
Something new to learn.....
Back in the day people would "shave" the mirrors to accommodate for lenses like these




QuoteOriginally posted by stevebrot Quote
I would not find interference with an H3v surprising at all. It was not unusual back in the day to have a lens that would fail to clear the mirror on a camera with a reasonable length mirror (required to avoid top margin black-out with telephoto lenses). I would, however, find it very surprising on an APS-C camera since the mirror should be only about 2/3 as long. That being said, I am not willing to call the two MF Forum user liars.

Along with the K-7, the thread also mentions problems with the K20D with that lens. What is even more puzzling is that there is another thread on MF Forum where a user posts photos from the same lens taken with a Sony A700 FF.

So, when in doubt, do a little visual comparison. Looking at the K10D...Looking at the SV (same as H3v). Now if that is not strange. The leading edge of the mirror on both cameras is about the same depth from the lens flange when raised. The mirror on the K10D (and presumably other Pentax dSLRs is outsized on the short axis.

Dang. Something new to remember...


Steve
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
adapter, aps-c, focus, infinity, k-mount, lenses, m42, mount, optics, pentax, pentax lens, pk, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Hyperfocal Scale on APS-C godwinaustin Photographic Technique 21 01-25-2013 03:16 PM
Thoughts on APS-C cameras mysticcowboy Pentax DSLR Discussion 64 09-30-2012 01:22 PM
Pentax APS-C Lenses Prices and Reviews rm2 Pentax SLR Lens Discussion 9 11-15-2010 01:41 AM
Tilt shift lenses made for Pentax APS-C bodies Buckeye Troubleshooting and Beginner Help 5 11-12-2010 07:43 AM
645 lenses on APS-C axl Pentax SLR Lens Discussion 2 06-11-2009 11:59 PM



All times are GMT -7. The time now is 10:54 PM. | See also: NikonForums.com, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top