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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 22 Jun 2013 (Saturday) 03:07
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Image Problem

 
xiled
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Jun 22, 2013 03:07 |  #1

Just need some expertise input as to what is exactly wrong with the below pictures.

I am not entirely sure if it's the camera or the lens. I took these photos of my son earlier today inside a community hall with a 5d3 and 50m 1.2.

I previously owned a 1D4 and didn't experience the green flare, if that's what it is. I would say 30% of my image is affected by it today. At one point, I took the filter off but the flare was still evident.

The 5D3 was recently purchased while the 50 1.2 was purchased couple of months ago.

It was taken at f2 ISO1000

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: NOT FOUND | MIME changed to 'image/png'



IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: NOT FOUND | MIME changed to 'image/png'

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LowriderS10
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Jun 22, 2013 03:11 |  #2

Are these WITH the filter? What kind of filter is it?

It almost looks like what you'd get out of a low quality CPL or ND...


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Jun 22, 2013 03:20 |  #3

Looks more like a white balance problem than flare. I presume fluorescent lighting.


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xiled
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Jun 22, 2013 03:30 |  #4

Yes - those photos were taken with the filter on. For a while I did take the filter off and experienced the same problem. There are other photos that turned out fine.

I didn't pay too much attention to the type of lights at the community hall but presumably they would be fluorescent lighting. I have taken photos at my own house and never experienced this.


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Jun 22, 2013 03:41 |  #5

artyman wrote in post #16053992 (external link)
Looks more like a white balance problem than flare. I presume fluorescent lighting.

Yep, that's my take - fluorescent lighting cycling through its colour spectrum at 50Hz or 60Hz, depending on where you live. If you bring your shutter speed down to - or below - the cycling speed, you'll get the full colour spectrum


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Jun 22, 2013 03:48 |  #6

I was recently photographing one of my projects where the lighting is fluorescents and I noticed that there was a colour cast on the aluminium bulkhead of the vessel. So I took three more shots and they all turned out to have slightly different colour casts soI presume that some fluorescent lamps cycle through various color temperatures. I have never noticed it before, but it was very obvious in this case.

I wouldn't be too concerned about your camera or lens at this stage!


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Matthew ­ Paul
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Jun 22, 2013 03:50 |  #7

xhack wrote in post #16054014 (external link)
Yep, that's my take - fluorescent lighting cycling through its colour spectrum at 50Hz or 60Hz, depending on where you live. If you bring your shutter speed down to - or below - the cycling speed, you'll get the full colour spectrum

I take 90% of the photos of my products mid production in florescent light and have this problem time to time. Dropping the shutter speed like you said solves the issue.




  
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xiled
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Jun 22, 2013 04:12 |  #8

wow thank you guys....you learn something new everyday.


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LowriderS10
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Jun 22, 2013 04:43 |  #9

Oh yeah, forgot about the lights...


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Jun 22, 2013 05:00 |  #10

This is a common annoyance for sports photographers in gymnasiums.


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Jun 22, 2013 07:22 |  #11

Gatorboy wrote in post #16054112 (external link)
This is a common annoyance for sports photographers in gymnasiums.


Amen!! Drives me nuts when I shoot a burst of 4-5 images and the one that has just the right expression or release of the ball, etc. is WAY out of whack color-wise.


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Jun 22, 2013 09:14 as a reply to  @ JVthePT's post |  #12

Yep, fluorescent lighting is the culprit. I don't know the AC frequency in Australia, but if you lower SS to one in the sequence 1/120, 1/60, 1/40, 1/30,...for 60 hz or 1/100, 1/50, 1/25, 1/20,...for 50 hz the problem will disappear.


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Jun 22, 2013 17:47 |  #13

rrblint wrote in post #16054443 (external link)
Yep, fluorescent lighting is the culprit. I don't know the AC frequency in Australia, but if you lower SS to one in the sequence 1/120, 1/60, 1/40, 1/30,...for 60 hz or 1/100, 1/50, 1/25, 1/20,...for 50 hz the problem will disappear.

Thanks for that...useful to know when visiting sites with fluorescent lighting!


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Jun 22, 2013 20:51 |  #14

rrblint wrote in post #16054443 (external link)
Yep, fluorescent lighting is the culprit. I don't know the AC frequency in Australia, but if you lower SS to one in the sequence 1/120, 1/60, 1/40, 1/30,...for 60 hz or 1/100, 1/50, 1/25, 1/20,...for 50 hz the problem will disappear.

50Hz/240V


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