Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
06-26-2012, 04:35 PM   #1
New Member




Join Date: Feb 2012
Location: Atlantic Canada
Posts: 8
Trouble auto-focusing with K7 SLR and Tamron 18-200mm lens

I recently purchased a Tamron 18-200mm lens for my Pentax K7 and have had it replaced once for the same problem. The lens will not consistently autofocus between 18 and approximately 35 mm. It performs slightly better in 'C' mode. The camera works perfectly with my 3 other Pentax lenses. I bought this lens for travel, however now I'm afraid to depend on it. Any suggestions???

06-26-2012, 10:01 PM   #2
Senior Member
Patajac's Avatar

Join Date: Jan 2012
Posts: 241
What do you mean by will not consistently autofocus? Does not lock focus or misses focus?
06-27-2012, 10:00 AM   #3
New Member




Join Date: Feb 2012
Location: Atlantic Canada
Posts: 8
Original Poster
Trouble auto-focusing with K7 SLR and Taron 18-20mm lens

Hi,
Sorry for the lack of clarification. The photograph appears to be in focus through the viewfinder/LCD and the 'hand' indicator appears to confirm. However, no 'red light' appears and the shutter won't open/close and take the photo.
06-28-2012, 07:53 AM   #4
New Member




Join Date: Jul 2009
Location: Chesterfield, VA, USA
Posts: 20
I'm having a similar problem with my K10d and the Tamron 18-200. it happens more near 200mm zoom. I'm going to also contact Tamron.

07-01-2012, 08:06 PM   #5
Pentaxian
Marc Sabatella's Avatar

Join Date: Sep 2006
Location: Denver, CO
Photos: Gallery
Posts: 10,686
I had a similar issue with this lens on my wife's K100D. Motor would turn, would "almost" focus, but apparently not quite because the shutter wouldn't fire. Worked fine on my K200D. Never looked into it further.
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!
k7, lens, pentax, pentax help, tamron, tamron 18-200mm
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
K-R trouble focusing in low light with Live View using Pentax 18-55 kit lens sportv Pentax K-r 8 01-02-2011 06:42 PM
FA lens not auto-focusing on 645D? Nebster Pentax Medium Format 4 12-18-2010 07:31 PM
Tamron 28-75mm & 70-200mm focusing speed yusuf Pentax SLR Lens Discussion 23 11-11-2010 02:12 PM
Trouble focusing with M lens garfield160 Pentax SLR Lens Discussion 13 06-22-2009 09:00 PM
TAMRON 1.4 TC converter has trouble auto focusing. jon pafford Pentax SLR Lens Discussion 3 05-21-2008 07:54 PM



All times are GMT -7. The time now is 02:52 PM. | See also: NikonForums.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