Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
04-20-2013, 08:52 AM   #1
Site Supporter
Site Supporter

Join Date: Apr 2013
Location: Southeastern Connecticut
Posts: 26
645 75mm FA or A?

I've just purchased a 645NII that I've been using with a couple of 67 lenses and adapter. But I'd like to get a 645 75mm lens, and am wondering about the relative merits of the A and FA versions. I'm pretty happy with the focus confirmation feature with the 67 lenses, but I would like to imprint data and use spot- or matrix-metering from time to time. Other than autofocus (and price and availability), are there any key differences in these two versions? Thanks!

04-20-2013, 09:05 AM   #2
Site Supporter
Site Supporter
blackcloudbrew's Avatar

Join Date: Mar 2009
Location: Cotati, California USA
Photos: Gallery | Albums
Posts: 3,902
Well the obvious difference between the A and the FA is auto focus for the FA. These two lenses rate essentially the same. I have them both and while the A feels a bit better from the build quality aspect (there is just less metal in the FA than the A), they appear to me to perform the same, oh and that's really really good. As you have an NII, I can't imagine why you wouldn't go with the FA75.
04-21-2013, 01:54 AM   #3
Loyal Site Supporter
Loyal Site Supporter
drougge's Avatar

Join Date: Jan 2010
Location: Malmö
Photos: Gallery
Posts: 787
I also have both. I'd choose the A version, because I like manual focus, and there it is (significantly) superior. Optical performance is the same (sample variation probably plays a bigger part). If you think getting the focal length imprinted is useful only the FA does that, but both imprint aperture.
04-21-2013, 06:16 AM   #4
Veteran Member

Join Date: Feb 2010
Location: Fowlmere, UK
Photos: Albums
Posts: 707
I had the A, FA and LS version; now only the FA. Optically, I detected no difference between any of them. I did like the fact that focal length was imprinted on the film, but ultimately the choice was down to: would I on occasion want autofocus or not. I decided I would.


  • 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!
75mm, camera, fa, lenses, medium format, time, versions
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Hello everyone! Hope you might be able to help with a Pentax 645 FA 75mm lens problem Stellaaaah Pentax Medium Format 8 03-11-2013 08:56 AM
For Sale - Sold: Pentax SMC-A 645 75mm F2.8, 645 body/film/backs pxpaulx Sold Items 7 01-10-2013 02:59 PM
For Sale - Sold: Pentax 645 Leaf Shutter 75mm 2.8, 645-A 150mm F3.5 MightyMike Sold Items 13 04-03-2012 06:47 AM
For Sale - Sold: Pentax 645 FA 75mm 2.8 ah693973 Sold Items 2 09-09-2011 02:38 PM
pentax 645 fa 75mm f2.8 bokeh? acarlay Pentax Medium Format 6 07-14-2011 06:28 PM

All times are GMT -7. The time now is 09:01 PM. | See also:, 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?
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]