Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
10-07-2013, 09:13 AM   #1
New Member




Join Date: Oct 2013
Posts: 7
Tamron 18-250mm lens fail to autofocus on upper end

Hi!

I'm using K200D and Tamron 18-250 lens for 4 years now for my travels.
In last several months I got to the stage where Camera can't establish autofocus on upper end of my lens focal length (last 1/3 towards 250mm).
It jumps before and after focus point all the time.

Manual focus works correctly.
Autofocus on first 2/3 of the focal length is also doing just fine (so far).

Lens is clean and all contacts inside the lens are good (checked by pentax local service).

This problem apeared et the beginning of this year and was getting worse in time. Now it is impossible to use autofocus on the upper end of the focal length.

I tried than lens on other Pentax camera - problem remains.
I tried other lens on myPentax camera - working properly.

My conclusion is that problem lies in lens, not the camera body.

This camera and lens got me 4 years of very pleasent experience with 4 times in Himalaya (among others). It workled hard, but it was never hit, nor left in humid.

Anybody had similar problem? Any idea how to troubleshoot further this problem?

Thanks!

Best regards,

--
Strsljen.

10-07-2013, 10:00 AM   #2
Inactive Account




Join Date: Dec 2008
Location: North Carolina
Photos: Albums
Posts: 1,720
Contact Tamron, the lens should still be under warranty if you bought it new, I believe all of their lenses have a 6 year warranty.
10-07-2013, 01:00 PM   #3
New Member




Join Date: Oct 2013
Posts: 7
Original Poster
Will do.

But, lens i bought in 2009. I'm not sure if 6 years warranty covers lens bought in 2009.
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!
autofocus, camera, focus, k-mount, length, lens, pentax, pentax lens, slr lens, tamron, time
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Which to choose: Tamron 28-300mm or Sigma 18-250mm Lex Madera Pentax SLR Lens Discussion 8 07-13-2012 03:12 PM
odd front focus problem with kit lens and Tamron 18 - 250mm lens jlaubza Pentax DSLR Discussion 12 10-30-2011 09:42 AM
Tamron AF 18-250mm F/3.5-6.3 Di II LD is it really 250 in the long end nirVaan Pentax SLR Lens Discussion 12 08-15-2011 07:53 PM
Which Zoom Lens? "Tamron AF 18-250mm", "Pentax-DA 18-250mm" or "Sigma 18-250mm" hoomanshb Pentax SLR Lens Discussion 4 07-30-2010 09:50 AM



All times are GMT -7. The time now is 08:02 AM. | 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