Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
05-11-2011, 01:30 PM   #1
Junior Member




Join Date: Feb 2007
Location: Norway
Posts: 49
Flasynch at 1/60 in A-mode with 31mm ltd

Hi, I am back again, bought some useless Sony fullframe camera and lenses. To heavy, then I bought Sony Nex, useless, you need glases for every shot you make.

Bought Pentax K5 31mm and 18-135.

But there is one thing I dont understand, Flashsynch is stuck at 1/60 in A-mode with 31mm ltd. Why is it not 1/180? It is with the 18-135 zoom.

Sugestions?


Last edited by chals; 05-11-2011 at 01:37 PM.
05-11-2011, 01:41 PM   #2
Pentaxian
Lowell Goudge's Avatar

Join Date: Jan 2007
Location: Toronto
Photos: Gallery | Albums
Posts: 15,400
in auto mode, pentax follows some kind of hand hold rule of thumb, trying to only supply fill flash, making the lighting up with natural lighting first. change the focal length and this will change

but I personally don't trust flash in any mode other than manual.

As I don't have a clue how the engineers think, I prefer to do it myself
05-11-2011, 01:57 PM   #3
Ash
Community Manager
Loyal Site Supporter
Ash's Avatar

Join Date: Mar 2007
Location: Toowoomba, Queensland
Photos: Gallery | Albums
Posts: 22,695
True. In Av mode, the camera assumes an approximate fixed 1/(focal length) second shutter speed in an attempt to try and expose the background as best as possible, at the same time avoiding the possibility of camera shake. I personally don't mind this as it means I can use my ISO to adjust for background exposure, whilst allowing P-TTL to expose for the subject. For me it seems to work quite well.

If you want total control over shutter speed, flip to M mode. Otherwise, you can switch the flash to high-speed sync (HSS) mode and you then have automatic background exposure done by the camera using shutter speed, with you setting just the aperture.
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!
31mm, a-mode, camera, dslr, ltd, photography, sony
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
FA 31mm harmonica2 Ask B&H Photo! 11 06-07-2010 12:41 PM
About FR by FA 31mm henryjing Pentax SLR Lens Discussion 5 04-02-2010 12:52 PM
Picture mode and Scene mode espanola Troubleshooting and Beginner Help 4 12-18-2009 08:59 AM



All times are GMT -7. The time now is 06:11 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