Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
03-20-2007, 11:31 AM   #1
Veteran Member
Ivan Glisin's Avatar

Join Date: Nov 2006
Location: Belgrade/Toronto
Posts: 656
Undocumented auto-focus feature?

I did not notice this behavior before, so it may be new to some of you: in case AF system fails to acquire focus lock (indicating that by blinking hexagonal indicator in the viewfinder) if you keep shutter release half depressed (with AF indicator still blinking) and reframe to provide better target for the AF sensor, camera acquires focus.

I believed that once AF lock indicator is blinking the AF system is dead not looking for a new target anymore, so it is necessary to release shutter release button before trying again. Apparently it is not the case, at least not with my *istDS, firmware V2.00.

To test: point camera at a white wall to induce AF error, keep holding shutter release half depressed and find a better AF target. This should result in immediate AF lock.

03-20-2007, 11:38 AM   #2
Veteran Member
blende8's Avatar

Join Date: Feb 2007
Location: Bremen, Germany
Photos: Albums
Posts: 1,484
It only works if the distance is changing.
If you point the camera on a white table, wait until it blinks and then push something contrasty in its way, it does not work.
03-20-2007, 11:50 AM   #3
Veteran Member
Ivan Glisin's Avatar

Join Date: Nov 2006
Location: Belgrade/Toronto
Posts: 656
Original Poster
Just tested and that case works too as described. One detail that could make a difference though: I am using center or selectable AF area, never on auto.
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!
af, camera, dslr, focus, half, indicator, photography, release, shutter, system, target
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
10 Reasons why manual focus primes are better than those new auto focus zoom lenses JoepLX3 Pentax SLR Lens Discussion 188 07-25-2012 03:28 PM
Does anyone know who to rig the Vivitar DF-383 Flash to disable the auto-off feature? crossover37 Flashes, Lighting, and Studio 1 08-16-2010 02:45 AM
Sigma 530 DG Super Auto Power Off Feature? Russell-Evans Flashes, Lighting, and Studio 6 05-08-2010 07:01 PM
K-x Annoying Feature Auto mode John52 Troubleshooting and Beginner Help 49 02-08-2010 11:18 PM
IS there Auto Focus assist in Auto with the Metz 58? madman6767 Pentax DSLR Discussion 5 01-26-2009 06:27 AM



All times are GMT -7. The time now is 03:23 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