Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
01-26-2015, 12:00 PM   #1
Forum Member




Join Date: Feb 2013
Location: Vancouver BC
Posts: 63
6 fps continuous shooting has under-exposure photos

Hi:

I have this problem since day one when I use the 6 fps continuous shooting. I always have 1 or 2 very under-exposure photos in between.

Is this normal? I bought 2 brand new Pentax prime lenses and they all exhibit this problem. Slow memory card?

01-26-2015, 12:06 PM   #2
Pentaxian




Join Date: Dec 2010
Location: Ontario
Photos: Gallery
Posts: 2,287
Using flash?

Metering mode?

Could you post a sample of the burst including over and under exposed images and the exif data?

Memory card speed shouldn't matter, it may mean it takes longer for the buffer to clear and it may affect the burst rate in a long sequence if your card is slow enough. No impact on the exposure though.
01-26-2015, 12:12 PM   #3
Senior Member




Join Date: May 2014
Posts: 138
Just a thought, maybe you were in bracketing mode?
01-26-2015, 12:34 PM   #4
MSL
Pentaxian
MSL's Avatar

Join Date: Feb 2012
Location: Greater Toronto Area
Photos: Albums
Posts: 3,360
It would best to post photos with the EXIF data intact. They don't need to be high quality images for this purpose since the main concern is the overall brightness.

At the very least what camera, lens, aperture and shutter speed were you shooting? I'll rule out sticky lenses since you say they are new, but even new lenses could develop oil on the blades if stored improperly.

Does it happen if you shoot at slower shutter speeds?

01-26-2015, 12:51 PM   #5
hcc
Pentaxian
hcc's Avatar

Join Date: Nov 2009
Location: Brisbane, Australia
Photos: Gallery | Albums
Posts: 3,482
I have experienced something similar, but much more rarely with my K-7 and K-3. I shoot nearly always in continuous shooting mode, from 1-3 shot bursts to 1min long bursts. In Hi continuous shooting, one in 100 to 200 photographs might be under-exposed. This never bothered me because of the rare nature of the event. On my K-7, I had this since the beginning.

While I cannot point the cause of the problem, it is clear that you need some high quality fast card to do Hi continuous shooting. I use Sandisk class 10 cards and never had any problem with any of my 5 cards.

Hope that the comment may help.
01-26-2015, 01:32 PM   #6
Loyal Site Supporter
TER-OR's Avatar

Join Date: Apr 2009
Location: Dundee, IL
Photos: Gallery | Albums
Posts: 5,417
It happens to me too - it's a metering mode thing for me. Using center-metering and trying to track dogs, I think the meter doesn't always hit the dogs or grass/snow consistently. I should switch to matrix, I keep forgetting to swap it in those situations.
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!
camera, fps, fps continuous, k-r, kr, pentax k-r, photos, under-exposure
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Max. continuous FPS slower with manual glass? konraDarnok Pentax K-3 17 07-25-2014 11:25 AM
Continuous Shooting, Exposure Bracketing, Interval Shooting etc in B Mode! kamayok3 Pentax DSLR Discussion 8 02-12-2014 01:45 PM
Continuous shooting crlester Pentax K-30 & K-50 7 05-03-2013 02:13 AM
FPS while shooting K20D in Continuous Lo until card fills up? kenyee Pentax DSLR Discussion 11 07-12-2012 09:13 AM
Which mode are you? Single shooting or continuous shooting? RonakG Photographic Technique 39 03-06-2011 02:08 PM



All times are GMT -7. The time now is 02:40 PM. | 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