Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
10-27-2011, 02:22 AM   #1
Senior Member




Join Date: Jul 2008
Location: south africa, johannesburg
Photos: Gallery
Posts: 228
Blue filter sorts out KR front focusing problem?

Here's a thought - the KR has been widely reported to have a front focusing problem in Tungsten light - this suggests that it has to with wave length sensitivity. Has anyone used a blue filter over the lens to correct the excessive yellow of tungsten lighting before the light reaches the AF module in the camera?

Thanks.

10-27-2011, 03:05 AM   #2
Veteran Member
Philoslothical's Avatar

Join Date: May 2011
Posts: 1,723
I was just reading something else that made me wonder if like a Wratten 82C would help with this, as its purpose seems to be shooting with daylight WB under incandescent lights. If anyone has one of these, it'd make for a very interesting test.
10-27-2011, 04:53 AM   #3
Veteran Member




Join Date: Jul 2008
Location: Var, South of France
Photos: Albums
Posts: 1,071
From memory (I had a Kx some time ago, suffering from the same kind of problem), the problem arise in low-light situations only. A well-lit tungsten scene would be properly focused.
Thus, using a filter in such a situation would only further degrade the AF behavior...
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!
camera, dslr, filter, front, kr, light, photography, tungsten
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Is this a front focusing camera problem or lens problem? Lens tests Metalwizards Pentax K-r 15 03-06-2011 01:24 AM
Need Help! Sigma front focusing. driftingbunnies Pentax SLR Lens Discussion 6 12-10-2010 01:14 AM
K10 front focusing bannor75 Troubleshooting and Beginner Help 2 07-21-2010 11:00 AM
My new K-x is front focusing, now what? skid2964 Pentax DSLR Discussion 19 11-01-2009 11:16 AM
Front/Back Focusing Problem? leex0187 Pentax DSLR Discussion 10 07-12-2007 05:34 PM



All times are GMT -7. The time now is 06:55 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