Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
10-30-2009, 01:16 AM   #1
Inactive Account

Join Date: Oct 2009
Location: Perth West OZ
Posts: 4
G'day from West OZ

Just joined the forums as a result of trying very hard to find info about the 70-200 2.8 Sigma when used with a 2x TC

I was trying to buy a 150 -500 Sigma but was talked into getting the 70-200 and using a 2xTC.. LOL FAIL at least it seems that way
Anyway HI,

10-30-2009, 01:30 AM   #2
Community Manager
Loyal Site Supporter
Ash's Avatar

Join Date: Mar 2007
Location: Toowoomba, Queensland
Photos: Gallery | Albums
Posts: 22,695
G'day mate.
Welcome to the forums.
Hope this doesn't sound defeatist, but I believe you were misinformed about using the 70-200 with a TC. As I mentioned in the other post you wrote on about it, there is no dedicated TC for the 70-200, and the other SDM TCs for Pentax aren't all that well matched for the 70-200's HSM. I've tried the Tamron 1.4x TC on the Sigma and it hunts to the point that focus does not lock at focal lengths beyond about 180mm (see here: as compared with here:
10-30-2009, 01:45 AM   #3
Site Supporter
eaglem's Avatar

Join Date: Feb 2009
Location: Perth Western Australia
Photos: Gallery
Posts: 27,640
Welcome to the Forum, glad to have you aboard.
11-05-2009, 01:15 AM   #4
Senior Member

Join Date: Aug 2007
Location: Perth, Australia
Posts: 268
Welcome! Welcome.


  • 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!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Greetings from the West Midlands! circlesquared Welcomes and Introductions 3 08-13-2010 02:40 PM
Landscape The West Tatras WoRaS Post Your Photos! 1 06-09-2010 06:40 AM
West LA Sun mentone-kx Monthly Photo Contests 0 05-29-2010 08:45 PM
Landscape Three more from our trip west slowpez Post Your Photos! 14 12-25-2009 10:06 AM
Hello from Sydney's West rortiz Welcomes and Introductions 5 08-10-2008 01:55 AM

All times are GMT -7. The time now is 10:16 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]