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03-04-2016, 06:11 PM   #1
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K-3 Uneven exposure on consecutive photos

Have an odd problem. When taking consecutive photos, my K-3 seems to expose differently in the top half and then the bottom half of the frame. I am trying to figure out what's going on.....









03-04-2016, 06:30 PM   #2
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Hi dcpropilot. Can you post the exif data from each shot.
03-04-2016, 06:35 PM - 1 Like   #3
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Yep.. Kinda hard to say anything without the EXIF. And the Flicker page is restricted.

But to be honest I don't see any difference in those. What am I missing?
03-04-2016, 06:39 PM   #4
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QuoteOriginally posted by jatrax Quote
But to be honest I don't see any difference in those. What am I missing?


On my computer, 2 and 4 seem to have less over-exposure of the light itself.

03-04-2016, 07:00 PM   #5
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QuoteOriginally posted by pjv Quote
On my computer, 2 and 4 seem to have less over-exposure of the light itself.
Not really seeing that on my monitor, but even so it cannot be much. Were these taken on a tripod? In that shot even a tiny bit of movement might force a different reading from the exposure meter. Depending on what metering mode is being used.
03-04-2016, 07:04 PM   #6
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QuoteOriginally posted by jatrax Quote
Not really seeing that on my monitor, but even so it cannot be much. Were these taken on a tripod? In that shot even a tiny bit of movement might force a different reading from the exposure meter. Depending on what metering mode is being used.

Hi jatrax. I'm not the OP. I posted the waiting for EXIF post. Hope we get some information soon.
03-04-2016, 07:06 PM   #7
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QuoteOriginally posted by pjv Quote
Hi jatrax. I'm not the OP.
Ya, I know. I was just saying on my monitor I still see no difference even in the lights. Since you can I trust there is some difference but as you say without the EXIF, nothing to see.
03-04-2016, 07:18 PM   #8
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Thanks everyone! Here's some more photos...I made them public so the Flickr exif can be viewed. I think by using the wall, it's now more visible:












Last edited by dcpropilot; 03-04-2016 at 07:24 PM.
03-04-2016, 07:22 PM   #9
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Hand held or on tripod?
03-04-2016, 07:31 PM   #10
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Hand held. I had a heck of a time taking photos at my daughter's gymnastics meet today. It was like there was a flash angled going from one part of photo to the other. But it wasn't a flash, it was areas of very uneven exposure. I think the best way to see what I am trying to explain is to flip through the photos in flickr.
03-04-2016, 07:33 PM   #11
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What metering mode?
03-04-2016, 07:36 PM   #12
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Metering Mode - Multi-segment
03-04-2016, 07:43 PM   #13
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QuoteOriginally posted by jatrax Quote
Yep.. Kinda hard to say anything without the EXIF. And the Flicker page is restricted.

But to be honest I don't see any difference in those. What am I missing?
What he said...both points.

If there is a difference, it is not evident on my monitor.

Is there any chance that the uneveness is a result of viewing angle?


Steve
03-04-2016, 07:45 PM   #14
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QuoteOriginally posted by dcpropilot Quote
Thanks everyone! Here's some more photos...I made them public so the Flickr exif can be viewed. I think by using the wall, it's now more visible:









Compact fluorescents or LED? I suspect cyclic brightness variation (forget the technical term). Do you get the same results with longer exposures, say 1/30s?


Steve

Last edited by stevebrot; 03-04-2016 at 07:52 PM.
03-04-2016, 07:56 PM   #15
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QuoteOriginally posted by stevebrot Quote
Compact fluorescents or LED? I suspect cyclic brightness variation (forget the technical term). Do you get the same results with longer exposures, say 1/30s?


Steve
https://photographylife.com/light-frequency-issue

http://johnbdigital.com/lenses/fluorescent/fluorescent_lighting.php


Steve
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