Second Hand DSLR - Issue with colour

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#1
Hi all, pleased to meet you!

I have just purchased a second hand DSLR. Everything seems fine, the camera appears to work perfectly, that is until you check what you've taken.

All the pictures are heavily tinged with a magenta colour and it doesn't appear like there's any green at all, no matter what mode/settings selected. I opened the images in Paint and pipetted whites and "greens" and as I kind of expected, there was 0 green. For example, a white section was R:208 G:0 B:243.

At first, I thought the camera had been IR modified for astrophotography, but now I'm not so sure. Surely there would still be some green?

I would attach pics, but I'm not allowed to yet! :)

Any help appreciated,
Cheers
 
OP
OP
S
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#4
Hi,

Thanks for the replies - I've tried defaulting all of the settings and played around with the white balance with no luck.

The tint is present in both RAW and jpg. The pictures look fine in live view (but the camera has a secondary sensor for this), but the tint is present when viewed on the camera also.

It's just so strange that the camera works perfectly, blue and red are fine, but no green. I'm puzzled.

Thanks
 
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#6
I had a Panasonic FX55 go just like this. If it's the same fault as I experienced then the electronics are faulty and it's a case of back to the seller. :(
 
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#8
Hi,

Thanks for the replies - I've tried defaulting all of the settings and played around with the white balance with no luck.

The tint is present in both RAW and jpg. The pictures look fine in live view (but the camera has a secondary sensor for this), but the tint is present when viewed on the camera also.

It's just so strange that the camera works perfectly, blue and red are fine, but no green. I'm puzzled.

Thanks
Hi @StiffCookie and welcome to TP

In live view you are seeing "what the camera sees" without knowing exactly which camera you have.......I have yet to learn of one that had two sensors!

Therefore, if in live view and through the optical viewfinder you are seeing the scene as normal.......but when you examine the pictures on the computer, whether raw or jpeg, there is "0" value on the green channel.

I can only think of 2 things:-
1) there is a problem with the camera processor, in that it is not recording the green channel

2) if it is a Canon, I recall the 5 series & 1 series bodies allow for changing the magenta vs green balance (I may be misdescribing it but fairly I had seen that on the menu on the 5Dmk3) but it is possible that a reset may not return that to default settings.

If you cannot resolve it by double checking the settings and/or doing a factory reset......then sadly it appears to be 'fubar'.

PS re: #2 of my suggested causes.
Unlike simple White Balance choice....this one I am thinking of is called White Balance Shift......
Here is one Canon page that goes into the aspect/user adjustable Green/Magenta I vaguely recalled
https://snapshot.canon-asia.com/art...rs-with-the-white-balance-correction-function

That has these screen grabs




So, I wonder if it is possible...no idea why anyone would do it, to set the above shift to remove 100% of Green?

Hope that helps......but if not, hopefully the seller will see you good :)
 
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Name
David
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#9
I had my Canon 20D converted to infrared and the images have similar levels in all three channels so I do not think you have a converted camera. As you have tried the obvious, it sound like a fault so you should reject the camera. I expect the seller has been expecting a rejection and must know about this fault.

Dave
 
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Bazza
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#10
I am thinking that is why the camera was sold, maybe too expensive to get fixed so flog it was the sellers thought. That fault should have been in the descripion of the camera
 
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Nightmare
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#12
You just shoot a patch of grass, a piece of white paper and some sky using daylight WB, and picture style normal or standard, etc, and if the in camera JPEG is no good you must demand for refund.

It's not your problem to find out any technical details, that had to be detailed by the seller in the listing.
 
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