Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
06-15-2009, 01:19 PM   #46
Senior Member
Mister Guy's Avatar

Join Date: Jan 2009
Location: Raleigh, NC
Posts: 244
Just to completely clarify, if I'm reading this correctly, you are shooting fully manually in natural light with the same lens and different bodies and getting different results. We'd really like you to remove that last variable of natural light, and shoot completely in artificial steady lighting. If possible, it would also be helpful if you would put both bodies on a firmly anchored tripod as well, as well as putting both white balance options. Once you've done that, please upload the original JPGs or even the raw files somewhere so we can verify all the associated information.

Particularly exposure compensation.

06-15-2009, 01:24 PM   #47
Veteran Member

Join Date: Sep 2007
Photos: Gallery
Posts: 975
a lot of confusion here.

please repeat the test with the two bodies, same lens, same scene, same light (artificial light if needed, to be sure it doesn't change), and same settings (iso, aperture, shutter speed), do it in raw, and process the two raw files with the same settings.

if you were shooting jpeg for this test, i have a hunch your settings for in camera processing might be different on the two bodyes.

if i understand your questions correctly, the above should shed some light on this. oh, and don't strip the exif, please.
06-18-2009, 08:22 AM   #48
Forum Member

Join Date: Feb 2007
Location: Los Angeles
Posts: 77
QuoteOriginally posted by raz Quote
Tell me how is the camera doing that if the ISO, aperture and shutter speed are locked by the user ? And they are the same on two cameras ?

From my knowledge the camera is "doing a good job protecting the higlights" only by changing the ISO or/and the aperture or/and the shutter speed - and here is not the case.

If these 3 elements are locked, camera cannot do anything - maybe just use it's hdri function (post process in the camera after the picture is taken).
So how do you think the camera protects highlights? By metering bias, of course. How does one set exposure manually? By using the same meter with the same bias.

The OP was initially complaining about the "bad exposure" of his K20D. We pointed out that the exposure wasn't bad, but was perfectly acceptable. THEN we descending into the complaints about the K20D not shooting with a high enough shutter speed, and not having the same exposure as the K10D, blah blah blah.

Now the fact that the user can't recognize a well-exposed image might lead me to believe that there are other factors contributing to unpredictable results here.

We're on page 4 and still no EXIF data.

The point is that the K20D exposure is perfectly acceptable, and the highlights aren't blown. We don't have nearly enough information, and the user doesn't have nearly enough control over the variables, to draw any serious conclusion about what's going on.

  • 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, dslr, exposure, k10, k20, k20d, photography, shots
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Upset my K-7 Danny Delcambre Pentax DSLR Discussion 10 11-18-2010 08:00 AM
In Canada: Summer Rebates for K20d or K20d plus lens Pentaxtic Pentax DSLR Discussion 1 07-17-2009 11:34 AM
Magic Lantern Guides: Pentax K20D and MasterWorks: Jumpstart Guide for the K20D. Reportage Troubleshooting and Beginner Help 10 02-12-2009 10:24 PM
Why "Scene Modes" Upset Some On The K200D? shutterpuppy Pentax DSLR Discussion 33 01-10-2009 05:28 PM

All times are GMT -7. The time now is 11:46 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]