Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
08-09-2011, 08:34 AM   #1
New Member




Join Date: Jul 2008
Location: Hamilton, ON
Posts: 13
Sigma Teleconverter compatibility

Has anyone used the latest Sigma 1.4X Teleconverter EX APO DG and a Pentax FA*300 mm F4.0 lens on a Pentax K5? Is it compatible with regards to AF and AE?
Any info on this combination would be helpful.

08-09-2011, 08:47 AM   #2
Pentaxian
Lowell Goudge's Avatar

Join Date: Jan 2007
Location: Toronto
Photos: Gallery | Albums
Posts: 15,400
QuoteOriginally posted by ticats Quote
Has anyone used the latest Sigma 1.4X Teleconverter EX APO DG and a Pentax FA*300 mm F4.0 lens on a Pentax K5? Is it compatible with regards to AF and AE?
Any info on this combination would be helpful.
I posted a list at one time of the compatible lenses, as stated in the sigma leaflet that came with my sigma TC

if you do a search under my name as a poster, and sigma TC for key words you should find it.

the bottom line is that your lens needs to have a 35mm diameter 12mm deep opening to accept the TC without interference. I don not recall the FA300/4 lens being on the list, I think it was limited to the FA300/2.8.

check here

https://www.pentaxforums.com/forums/pentax-beginners-corner-q/50537-teleconve...tml#post484259
08-09-2011, 09:26 AM   #3
New Member




Join Date: Jul 2008
Location: Hamilton, ON
Posts: 13
Original Poster
Thanks for your help
08-09-2011, 09:59 AM   #4
Pentaxian
Lowell Goudge's Avatar

Join Date: Jan 2007
Location: Toronto
Photos: Gallery | Albums
Posts: 15,400
i should also mention that it can be used on the tamron adaptall II 200-500F5.6 MF zoom lens (without interference in the lens, it remains MF obviously)

08-09-2011, 02:06 PM   #5
Pentaxian




Join Date: Oct 2006
Location: Chicago suburb, IL, USA
Posts: 1,535
Hi ticats,

I have the EX 1.4x APO (pre DG) TC and the FA* 300/4.5, and the TC both fits and functions correctly. I doubt that there's much difference in the DG model, as usually it's just a matter of lens coating on the back element to prevent flare from reflections off the sensor.

Scott
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!
pentax, pentax help, sigma, teleconverter
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Sigma teleconverter compatibility alehel Pentax SLR Lens Discussion 13 07-03-2017 05:09 AM
Sony breaks Sigma Compatibility (I think) Aegon Non-Pentax Cameras: Canon, Nikon, etc. 13 09-18-2010 07:25 PM
Teleconverter/Lens/Camera Compatibility eco1 Troubleshooting and Beginner Help 1 12-13-2009 12:50 PM
Sigma 1.4 TC compatibility zinj Pentax SLR Lens Discussion 2 06-10-2009 11:16 AM
Sigma TC HSM compatibility with Pentax Arpe Pentax SLR Lens Discussion 5 03-12-2009 06:15 PM



All times are GMT -7. The time now is 04:43 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