Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
01-21-2013, 01:04 AM   #1
Forum Member
Eebll's Avatar

Join Date: Sep 2012
Photos: Gallery | Albums
Posts: 76
DA* 50-135 calibration issue.

Hi all. I've been wondering why my photography skills have been a little bit hit and miss with this lens and put it down to my inexperience as a photographer and not haveing used
an auto focusing lens before of this calibrer. I read up on calibrating lens's and have done so, making a big difference to my keepers. But, unfortunatley, I've hit the ten in af fine tuning.
At around 4.5 and smaller aperture I can get great photos. At larger apertures there is some back focus. If you do the battery test ie: 4-5 batteries in a row one behind the other and slightly
sticking out from behind the one in front, you can see the difference. Now, what I've noticed while playing around is that my focus point moves from the point of focus when adjusting from 135mm to 50mm
and vice versa. I guess it would be around 30 odd degree angle from the horizontal and several mm. I'm guessing this should not be?? Any thoughts on this muchley appreciated.
I know that, sadly, I'm going to have to send it off for re-calibration. If anyone in Perth Western Australia knows a good repair shop here who can do this I'd greatly appreciate you letting me know.

Thanks all,
Eric.

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!
focus, lens, pentax help
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
For Sale - Sold: Pentax 18-135 DA WR, 50-135 f2.8 DA* biphers Sold Items 14 12-16-2012 09:01 PM
Move from 18-135 to 16-50 + 50-135 DA* Lenses brosen Pentax SLR Lens Discussion 34 11-08-2011 05:11 PM
DA* 50-135...chasing focus issue simple1 Pentax SLR Lens Discussion 2 02-22-2010 09:09 AM
Any Known Quality Variation issue with DA* 50-135? gkopeliadis Pentax SLR Lens Discussion 2 08-01-2008 09:30 AM



All times are GMT -7. The time now is 07:44 AM. | 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