Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
07-28-2011, 06:08 PM   #1
Senior Member
CraneGuy1's Avatar

Join Date: Dec 2008
Photos: Gallery
Posts: 102
K-5 with Canon lens?

Hey all,

I have wanted to get one of the FA* 600mm Pentax lenses, but we all know that's not going to happen.
Has anybody had any success using a Canon 600mm f4 with a Canon to Pentax lens adapter? I was thinking of trying it. I have the adapter, but I don't want to pay out for a big lens until I know it will work.

07-28-2011, 06:44 PM   #2
Loyal Site Supporter

Join Date: Jun 2009
Location: Tumbleweed, Arizona
Photos: Gallery | Albums
Posts: 5,107
It really can't be done due to Canon's registration distance is shorter than the Pentax. Here is a discussion on the topic...

07-28-2011, 07:39 PM   #3
Loyal Site Supporter
imtheguy's Avatar

Join Date: Mar 2009
Location: Virginia Beach
Photos: Gallery | Albums
Posts: 2,950
If you can afford a Canon 600/4, then tossing in a 60D dedicated to that lens should be no problem. Beats adaptors.
07-29-2011, 12:42 AM   #4
Forum Member
kanzlr's Avatar

Join Date: Jul 2011
Location: Vienna
Posts: 92
yep, if you want big tele lenses, get a canon body and superglue it to that lens. Thinking about that very thing.

07-29-2011, 03:13 AM   #5
Senior Member
CraneGuy1's Avatar

Join Date: Dec 2008
Photos: Gallery
Posts: 102
Original Poster
Good stuff.

Huh, I never thought I would get a "buy a Canon" recommendation on this forum.
07-29-2011, 03:40 AM   #6
Site Webmaster
Adam's Avatar

Join Date: Sep 2006
Location: Arizona
Photos: Gallery | Albums
Posts: 43,228
If you want pro tele lenses Sigma is more or less your only option unless you go looking for used lenses. Definitely not as nice as the canon lens, but worth considering:
Sigma 500mm f/4.5 EX DG APO Autofocus Lens for Pentax AF 184109

Adam Webmaster (Site Usage Guide | Site Help | My Photography)'s high server and development costs are user-supported. You can help cover those costs by donating. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:


  • 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!
600mm, adapter, camera, canon, dslr, k-5, k-5 ii, k-5 iis, k-5 with canon, k5, lens, pentax, pentax k-5
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
For Sale - Sold: Canon EOS 500D/T1i Camera + Canon Zoom Lens EF-S 18-55mm 1:3.5-5.6 IS mackloon Sold Items 7 08-13-2011 10:58 AM
can i use a canon lens on my kx? 4ngi3 Troubleshooting and Beginner Help 3 06-28-2010 12:10 PM
Non-Canon zoom lens on Canon DSLR, what's up? GerryL Non-Pentax Cameras: Canon, Nikon, etc. 21 06-26-2010 07:23 PM
Canon 5200mm(!) f/14(!) lens--only $45k indytax Non-Pentax Cameras: Canon, Nikon, etc. 2 01-07-2010 02:39 AM
Canon convert needs help with Pentax lens! nitrox28 Pentax SLR Lens Discussion 12 12-15-2009 07:37 AM

All times are GMT -7. The time now is 10:27 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]