Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
09-17-2012, 06:49 PM   #1
Senior Member




Join Date: Sep 2009
Location: Washington
Photos: Gallery | Albums
Posts: 133
Too large focus point issue?

Hi All,

I am having issues with focus. I am using the FA 35mm 2.0 lens on the Pentax k-5. When shooting a subject relatively close, the focus is spot on, but from a distance it misses almost every time. So is this a too large focus point issue that I have heard about? If so what can I do to increase my success rate of an in-focus image from a distance. I mainly shoot pets so I need to focus quickly and shoot. See the examples below:

All were taken at:
ISO 800
f 2.0
Shutter 1/500
Center focus
All photos focused on the flower in the center

1209_focus_problems_003 | Flickr - Photo Sharing!

1209_focus_problems_001 | Flickr - Photo Sharing!

1209_focus_problems_002 | Flickr - Photo Sharing!

09-17-2012, 06:51 PM   #2
Pentaxian
JinDesu's Avatar

Join Date: Jun 2011
Location: New York City
Photos: Gallery
Posts: 5,626
It appears so. That last shot definitely seems like the camera's center point decided the background green was more contrasty.

You CAN try another trick though - shift the center point around to see if it does anything. Sometimes my k-x's center point wants to focus on the rear stuff, but if I adjust my center point to get two legs of the + to cover the subject, it will focus.
09-17-2012, 07:03 PM   #3
Pentaxian




Join Date: Sep 2011
Location: Nelson B.C.
Posts: 3,267
Can you see what is in focus in the viewfinder when you are shooting? With such a busy scene, moving the composition slightly one way or the other will change what is in focus. If you can't see it however, you can't select the one you want.

I used my 170-500 lens this weekend shooting small birds in the bushes. I had a stable platform, a monopod with gimbal, so I could keep the aim steady. I was able to focus on small birds between branches by changing the composition slightly and depressing the shutter button halfway. I think the difference may be the focus screen; I could see clearly what was in focus or not.
09-17-2012, 07:15 PM   #4
Veteran Member




Join Date: Mar 2010
Photos: Gallery | Albums
Posts: 1,545
Liveview really helps solve this problem.

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, center, distance, dslr, flickr, focus, k-5, k-5 ii, k-5 iis, k5, pentax k-5, photo
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Macro focus stacking + large numbers of frames v5planet Photographic Technique 7 01-29-2012 02:59 PM
Large back focus on a new lens adwb Pentax K-5 2 11-02-2011 09:56 AM
Large manual focus lens focal stability ghillindy1 Pentax DSLR Discussion 8 11-26-2010 10:49 AM
K-X 11-point Auto Focus issue Matte Black Pentax DSLR Discussion 67 04-09-2010 12:55 PM
K100D Super - Focus point locked to center in Manual Focus ? JGabr Pentax DSLR Discussion 2 01-25-2010 09:41 PM



All times are GMT -7. The time now is 02:14 PM. | 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