Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
08-08-2014, 07:34 PM   #1
Pentaxian




Join Date: Sep 2012
Photos: Gallery | Albums
Posts: 1,728
Micro AF adjustment

Question for all AF adjustment experts:

I haven't exhaustively tested this yet (multiple distances, focal lengths) but I'm beginning to think my two year old K-30 may now need a little more than +10 micro adjustment (I've had it at +8 for at least a year). Is there any special means or hack that might allow me to test this and perhaps set it to a higher figure? TIA.

08-08-2014, 08:50 PM   #2
Site Supporter




Join Date: Jan 2011
Posts: 2,395
For the kx and the k5 you can use the debug mode. I am not sure if that is possible with the k30.

https://www.pentaxforums.com/forums/115-pentax-k-5/170874-k-5-debug-mode-now-accessible.html
08-09-2014, 01:23 PM   #3
Pentaxian




Join Date: Sep 2012
Photos: Gallery | Albums
Posts: 1,728
Original Poster
QuoteOriginally posted by sergysergy Quote
For the kx and the k5 you can use the debug mode. I am not sure if that is possible with the k30.

https://www.pentaxforums.com/forums/115-pentax-k-5/170874-k-5-debug-mode-now-accessible.html
Thanks, this helped a lot. I found out PKTether isn't compatible with the K-30 BUT if hit the enter debug mode command on the software interface and then disconnect the K-30... voila, you've turned on debug mode. I was able to make some AF adjustments beyond what the normal menu offers.
08-09-2014, 04:37 PM   #4
Site Supporter




Join Date: Jan 2011
Posts: 2,395
great

08-10-2014, 07:32 PM   #5
Junior Member
363923885's Avatar

Join Date: Feb 2013
Location: Wuhan
Photos: Gallery
Posts: 34
I want to make AF ajustments for my new k50+DA50 1.8, it always misfocus when shooting portraits at a large aperture between F1.8 to F3.5 using OVF, I wonder if someone could tell me when to ajust "+" and "-", here's a sample photo, please help!

Last edited by 363923885; 04-27-2015 at 07:21 PM.
08-11-2014, 10:59 AM   #6
Veteran Member




Join Date: Mar 2007
Location: U.K.
Posts: 685
Be careful judging AF accuracy when taking kiddie shots. They never sit/stand still and are always in constant movement, so with a thin DOF you're likely to have the wrong point in focus. They can move a long way in the 0.1 or so seconds that AF takes to work. Just take more shots. Sometimes it's the operator habitually moving fore or aft between getting an AF lock and pressing the shutter.

If your problem is a real AF accuracy one then it's front focus (FF) by the look of it. A minus setting pushes the focal point back according to the notes I made last time I adjusted AF, notes I made because I can never remember which way is which LOL.
08-11-2014, 07:13 PM   #7
Junior Member
363923885's Avatar

Join Date: Feb 2013
Location: Wuhan
Photos: Gallery
Posts: 34
QuoteOriginally posted by SteveB Quote
Be careful judging AF accuracy when taking kiddie shots. They never sit/stand still and are always in constant movement, so with a thin DOF you're likely to have the wrong point in focus. They can move a long way in the 0.1 or so seconds that AF takes to work. Just take more shots. Sometimes it's the operator habitually moving fore or aft between getting an AF lock and pressing the shutter.

If your problem is a real AF accuracy one then it's front focus (FF) by the look of it. A minus setting pushes the focal point back according to the notes I made last time I adjusted AF, notes I made because I can never remember which way is which LOL.
Thank you, SteveB. I think I should read more about K50 User Manual, so I can handle my K50 well.
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!
adjustment, af, k-30, k-50, pentax k30, pentax k50
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Lens Micro Focus Adjustment on K-X? geekette Pentax DSLR Discussion 4 12-23-2013 09:07 PM
Sigma lenses AF micro adjustment Greyser Pentax SLR Lens Discussion 8 01-07-2013 06:57 AM
K30 AF micro-adjustment Roberts Pentax K-30 & K-50 8 05-22-2012 05:06 PM
AF Fine Adjustment, focus correction, AF micro adj., AF fine tuning annajonna Pentax K-5 13 11-19-2011 11:32 PM
AF micro-adjustment MacKay Pentax DSLR Discussion 10 05-07-2010 01:51 PM



All times are GMT -7. The time now is 05:24 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