Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
01-19-2010, 10:33 AM   #16
Veteran Member




Join Date: Jan 2008
Location: Ste-Anne des Plaines, Qc., Canada
Posts: 2,014
QuoteOriginally posted by deiberson Quote
i'm assuming that you can only use the AF points on an auto focus lens, correct? a lot of my shots with my manual primes (A and M series lens) are not in focus where I want them to be. the AF selector won;t help in in this example will it?
It should help. The "hexagon" indicating focus in the viewfinder should appear as you get in proper focus. The "beeper" will also "beep" at the same time if it is turned on.

01-19-2010, 10:42 AM   #17
Veteran Member
Deiberson's Avatar

Join Date: Dec 2009
Photos: Albums
Posts: 734
so if i want the upper right in focus, just aim in the center of the viewfinder like i normally do but make sure i selected the upper right focal point from the af options....?

even with manual focus lenses hugh? i'll have to try it.
01-19-2010, 10:47 AM   #18
Ash
Community Manager
Loyal Site Supporter
Ash's Avatar

Join Date: Mar 2007
Location: Toowoomba, Queensland
Photos: Gallery | Albums
Posts: 22,678
Unfortunately, pre-A lenses (those without auto-aperture settings) render the camera unable to select AF points. Centre is the only point used with such lenses.

But as for utility of the selectable AF points, it's extremely useful for correct focusing of thin DoF shots. In fact it's essential. In most other circumstances, it's acceptable to just lock focus and recompose the scene without focusing error (due to the greater DoF in normal infinity or close-to-infinity focus shots).
01-19-2010, 10:59 AM   #19
Veteran Member
Deiberson's Avatar

Join Date: Dec 2009
Photos: Albums
Posts: 734
so for a 40mm pankacke M series......there would be no options except for center focus. but for a 50 1.4 A series.....i can select multi focus points?

01-19-2010, 11:09 AM   #20
Pentaxian
aleonx3's Avatar

Join Date: Jul 2007
Location: Brampton, Ontario
Photos: Gallery | Albums
Posts: 3,873
Ash, don't think (I have to check) that you can select AF point either with A lens. Only with AF lens (such as F, FA or DA) you can select AF points.

With MF lenses, it is difficult to lock in focus (when using narrow DOF) while you are composing the picture. I also prefer MF wide angle lens as it is easier to get hyperfocal distance and enough DOF even with larger aperture.

QuoteOriginally posted by Ash Quote
Unfortunately, pre-A lenses (those without auto-aperture settings) render the camera unable to select AF points. Centre is the only point used with such lenses.

But as for utility of the selectable AF points, it's extremely useful for correct focusing of thin DoF shots. In fact it's essential. In most other circumstances, it's acceptable to just lock focus and recompose the scene without focusing error (due to the greater DoF in normal infinity or close-to-infinity focus shots).
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, focus, multi point af, pentax help, photography
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Nature Don't Feck With Me! donallison13 Post Your Photos! 1 11-02-2010 06:27 PM
Linking AF point and AE during multi-seg metering geckogrin Pentax DSLR Discussion 3 08-21-2010 07:59 PM
multi-point (11, 16, whatever) focal system—WHY?? WMBP Pentax DSLR Discussion 15 03-02-2010 10:51 AM
k10d multi-point focusing samiam Pentax DSLR Discussion 12 01-03-2008 02:37 PM
Don in Louisville craftsmansky Welcomes and Introductions 3 10-28-2007 04:21 AM



All times are GMT -7. The time now is 01:18 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