6D problem?! high ISO/shutter create green cast. -- Canon Digital Cameras in photography-on-the.net forums

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Dec 05, 2012 03:12 | #1

See those picts; The first are with Sigma 35mm f1.4, the others with 50mm f1.8.

The effect change depending on the shutter speed/ISO numbers.

f1.4, 1/800, iso3200

MIME changed to 'text/html' | Content warning: script

f1.4, 1/800, iso3200

MIME changed to 'text/html' | Content warning: script

F1.8, 1/800, ISO4000

HTTP response: NOT FOUND | MIME changed to 'image/png'

f1.8, 1/3200, Iso12800 just to push it

HTTP response: NOT FOUND | MIME changed to 'image/png'

The camera is set to manual, ISO automatic.

any ideas what's going on?!

Canon 6D | S35mm f1.4 | 135mm f2 The rest: T3i, 20D, 15mm f2.8, 15-85mm, 24mm f2.8, 50mm f1.8, 85mm f1.8, 90mm f2.8 macro, 55-250mm.
So long and thanks for all the fish

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Earwax69
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Dec 05, 2012 03:21 | #2

Here another batch from the kitchen, starting low ISO to high ISO.

f4, 1/60,iso250

HTTP response: NOT FOUND | MIME changed to 'image/png'

f4, 1/160, iso640

HTTP response: NOT FOUND | MIME changed to 'image/png'

f4, 1/800, iso3200

HTTP response: NOT FOUND | MIME changed to 'image/png'

f4, 1/2000, iso8000

HTTP response: NOT FOUND | MIME changed to 'image/png'

Tried to change the white balance from Auto to Tungsten. Everything is more blueish but at high ISO the green wave invade the image anyway.

Canon 6D | S35mm f1.4 | 135mm f2 The rest: T3i, 20D, 15mm f2.8, 15-85mm, 24mm f2.8, 50mm f1.8, 85mm f1.8, 90mm f2.8 macro, 55-250mm.
So long and thanks for all the fish

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Earwax69
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Dec 05, 2012 03:51 | #4

Really? even here?
http://s10.postimage.org/teenz3yx3/IMG_4857.jpg

Edit: I am uploading on flickr now

Canon 6D | S35mm f1.4 | 135mm f2 The rest: T3i, 20D, 15mm f2.8, 15-85mm, 24mm f2.8, 50mm f1.8, 85mm f1.8, 90mm f2.8 macro, 55-250mm.
So long and thanks for all the fish

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philwillmedia

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Dec 05, 2012 03:57 | #5

There's no problem with the camera.
These pics were taken under fluorescent lights and the effect you are seeing is caused by the cycling of the lights.

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Earwax69
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Dec 05, 2012 03:58 | #6

Thanks phil for your reply. Strangely I never noticed this problem with my t3i... I'm going to try right now! (hey you can see the pictures!)

Here the flickr gallery:
http://www.flickr.com …5/sets/72157632176856938/

Canon 6D | S35mm f1.4 | 135mm f2 The rest: T3i, 20D, 15mm f2.8, 15-85mm, 24mm f2.8, 50mm f1.8, 85mm f1.8, 90mm f2.8 macro, 55-250mm.
So long and thanks for all the fish

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philwillmedia

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Dec 05, 2012 04:03 | #7

Earwax69 wrote in post #15328445

(hey you can see the pictures!)

The first one loads ok for me (young bloke skipping)
You just need to rotate it though.
Second one, I clicked on the link and saw it ok as well.

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Earwax69
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Dec 05, 2012 04:06 | #8

Yeeeeaaaaaah! the t3i is doing it too when bumped over 1/2000. It's a lot more strong on the Ful Frame though.

What are the consequence of this? You just need to keep a lower shutter speed? I though that problem was only for video. Haaaa, I understand, it's a bit like the rolling shutter effect. The time your pixel are recorded from up to down, the cycle of the light change and you get a shadowy wave!

Brilliant! I'm so glad it's not the cam!!

Canon 6D | S35mm f1.4 | 135mm f2 The rest: T3i, 20D, 15mm f2.8, 15-85mm, 24mm f2.8, 50mm f1.8, 85mm f1.8, 90mm f2.8 macro, 55-250mm.
So long and thanks for all the fish

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philwillmedia

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Dec 05, 2012 04:10 | #9

No real consequences - just annoying effects on your pics.
It's been brought up plenty of times just do a forum search and you'll find all the answers you need.
I don't explain it well enough to be of any real help.

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Keyan

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Dec 05, 2012 07:48 | #10

Ah, yes, the joys of 60hz and flourescent lights. To capture an entire up/down cycle you'll need to not go faster than 1/60. Or replace your lights with LED/incandescent

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tzalman

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Dec 05, 2012 09:23 | #11

Keyan wrote in post #15328877

Ah, yes, the joys of 60hz and flourescent lights. To capture an entire up/down cycle you'll need to not go faster than 1/60. Or replace your lights with LED/incandescent

It is enough to capture just half a cycle (a cycle is 0>max +voltage>0>max -voltage), so don't shoot faster than 1/120 (or 1/100 where the current is 50 Hz.

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Christina.DazzleByDesign

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Dec 05, 2012 10:34 | #12

Your shutter speed is faster than the cycling of the fluorescent lights It's annoying, I know. Just be concious of it when you enter a place with that kind of lighting.

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