Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
10-01-2018, 12:27 AM - 1 Like   #16
GUB
Loyal Site Supporter
Loyal Site Supporter
GUB's Avatar

Join Date: Aug 2012
Location: Wanganui
Photos: Gallery | Albums
Posts: 3,846
It is pretty obvious if you think about it. Even with multiple AF points the camera still only focuses at one distance. The convenience of multiple points is to do away with the camera refocusing when you move from focusing on an off centre point to compose the image. That is not an issue with a manual focus lens.

10-01-2018, 07:33 PM   #17
Site Supporter
Site Supporter




Join Date: May 2016
Photos: Albums
Posts: 1,428
QuoteOriginally posted by Not a Number Quote
If the intent is to make you buy AF lenses you can still buy plenty of the plasticky FA lenses on the used market. How does Ricoh profit from that?
The center-focus-point for manual lenses goes back to the Pentax AF film cameras; the limitation may have been instituted then for lens sales reasons, and just kept on unchanged ever since. (Or maybe there were technical reasons at the time which may not be limited by capabilities now.)
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!
af, centre, dslr, full frame, full-frame, k-1, k1, lens, pentax k-1
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Manual Metering on Pentax DSLRs with Manual and Automatic Lenses Adam Pentax DSLR and Camera Articles 20 01-06-2016 03:38 AM
Movie mode and old manual lenses? vanakaru Pentax K-5 13 08-05-2011 07:43 AM
Do you use only manual focus lenses?Do a lot of folks use only manual lenses? heralu Pentax DSLR Discussion 12 01-05-2011 04:06 PM
For Sale - Sold: FS: (CONUS) Old Sears, Five Star, and Tokina manual lenses kalison Sold Items 2 06-23-2010 06:54 PM
Pentax Km and old manual lenses: SMC Takumars & Tamron Adaptall 2 lenses Kendrick Troubleshooting and Beginner Help 10 04-14-2010 03:23 AM



All times are GMT -7. The time now is 10:50 PM. | See also: NikonForums.com, CanonForums.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