Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
08-20-2022, 09:53 PM   #1
Loyal Site Supporter
Loyal Site Supporter

Join Date: Sep 2006
Location: midwest, United States
Photos: Gallery | Albums
Posts: 5,633
Question about HD Pentax-D FA 645 90mm ED AW SR Macro

It only achieves 1/2 Lifesize magnification. Will the Pentax 645 extension tubes work in manual focus with this lens, on the 645Z? How about the teleconverters?

08-20-2022, 11:33 PM   #2
Senior Member
phat_bog's Avatar

Join Date: Jun 2016
Location: Paris
Posts: 116
hi Barondla, i'll test to confirm this in a day or two . until then i dont't see why auto aperture wouldn't work with the TC and the extension tubes. Otherwise , what's for sure , the helicoid adapter won't work for aperture control. i do ask myself at what extent the internal Shake reduction will be effective with tubes or extenders
08-22-2022, 06:24 AM   #3
Site Supporter
Site Supporter

Join Date: Dec 2013
Location: PA
Photos: Gallery
Posts: 645
yes ext tubes work on all lenses

  • 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!
645d, 645z, camera, fa 645 90mm, hd pentax-d fa, medium format, question about hd
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
For Sale - Sold: HD Pentax D FA 645 Macro 90mm 2.8 AW SR MFullana Sold Items 3 06-25-2021 06:34 AM
HD Pentax-D FA 645 90mm F2.8 ED AW SR Macro Nguyen Nam Lens Sample Photo Archive 2 02-12-2020 08:32 AM
For Sale - Sold: HD PENTAX-D FA 645 MACRO 90mm f/2.8 ED AW SR !!!!PRICE REDUCED!!!! crazyfrog89 Sold Items 9 11-16-2015 10:50 AM
PENTAX Announces New 90mm Macro Lens New HD PENTAX D FA 645 MACRO 90mm F2.8 ED AW SR Adam Homepage & Official Pentax News 0 09-10-2012 03:00 PM

All times are GMT -7. The time now is 10:36 AM. | 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]