Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
02-10-2008, 09:08 AM   #1
Inactive Account

Join Date: Jun 2007
Location: Queensland
Photos: Gallery
Posts: 124
TaV mode

K10D and TaV mode, tried this afternoon to take a few pics and needed to open the apature from f4.5 i think it was to f2.8 and it would not let me??..
May i ask what the reason would have been in this mode??.
It was daylight as i mentuioned and rather overcast trying to take some Photos of some fruit under the folliage/canopy of my Paw Paw tree, hence needing a bigger appature.
Now i knowin this mode it sets the ISO to a value it sees fit and it raised it to 400 ISO but histogram was staill a fair way to the left leaving Pics rather dark and underexposed..
Cheers and thanking in advance..

02-10-2008, 12:46 PM   #2
Veteran Member

Join Date: May 2007
Location: York Region Canada
Posts: 642
I don't have my camera here just now, but i think you have to set the maximum ISO to go to , do yoou not.

I used it for a while and had no problems. I found a +0.3 ev helped

02-10-2008, 10:45 PM   #3
Veteran Member

Join Date: Jun 2007
Location: California
Posts: 426
What lens were you using? was it capable of acheiving f/2.8 at your desired focal length?

I ask because my camera allows me to use my full range of shutterspeed and aperture combination, the aperture is limited by the lens physical capablities.. The info bar in the viewfinder will just blink if it is unable to obtain proper exposure.

As for underexposing, EV compensation adjustments is still necessary as your are still letting the camera do adjustments to the ISO based on it's calculations. So if it's underexposing, turn your EV compensation up.
02-11-2008, 10:03 PM   #4
jgredline's Avatar

Join Date: Oct 2007
Location: LosAngeles, Ca.
Photos: Albums
Posts: 10,627
As suggested..''EV'' comp is likely the culprit


  • 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, iso, mode, paw, photography, pics, tav
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
TAv mode Howard2k Pentax DSLR Discussion 17 09-23-2010 01:30 PM
Tav mode amaruba Troubleshooting and Beginner Help 8 05-21-2009 11:59 AM
A way to get a TAv mode on the K-m/K200D? ManuH Pentax DSLR Discussion 28 04-07-2009 03:57 AM
TAV mode is so cool!!! regken Pentax DSLR Discussion 3 04-11-2007 08:12 AM
Flutterbys, TAv mode. Dana G Post Your Photos! 3 04-08-2007 05:29 AM

All times are GMT -7. The time now is 02:24 PM. | See also:, 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?
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]