KM 5D Pink Tint

Hi, kinda late in joining this forum but I recently got a KM 5D and it looked alright when I first got it and initial shooting gave good results. Later on I checked the images on my computer and there was faint pink tint/lights near the upper part of the image, it showed more when the area is dark and not so much when its bright. Its like 3 LEDs on top. One shot below shows it pretty strong.



Here's one using a flash, it doesnt show much but its there.



I was pretty much irked at this problem, then I tried fiddling with the settings but nothing made it go away (WB, Antishake on and off, ISO high ang low) then I tried to shoot multiple images and the second image (and subsequent images if it was fast enough) had none of the pink tint.



then the next frame:



The second frame was alright, none of the pinkish thing on top. When I tried it on a single shot, the pink image was there again and would disappear only if followed by another shot.

Jas anybody encountered this? Is there any 'home' cure as I'm stuck in the Philippines and I'm not even sure theres a repair shop able to fix this much less have parts. And Sony isn't probably gonna help too.

I really like the camera, but I'm pretty sure I wont be able to keep it if this cant be fixed, any help would be really appreciated.

Edited by ACMCRaindog - 29 April 2011 at 17:56

I thought it might be some kind of light leak, without taking the camera apart (I dont have the courage) I peeked under the mirror to check the shutter, everything seems fine, no unevenness, no bends, no corrosion or what not. My assumption is on the first frame, something is not moving right and there is exposure to something (I tried with the display off, dark room, different lenses, apertures) but the pink lights appear on every frame unles its followed up by another shot, I could probably take two pictures of everything everytime to be able to get a good image but that wont solve the problem :[ not to mention timing isues for street photography which I plan to use the 5D on) On a hunch it might be color related I tried B&W and the same lights appear, 3 sources all the time, left and right the strongest and the middle one weakest. at the most when it doesnt show up much, the right most becomes the most evident. I've seen two search results for something similar and i forget the keyword I used, two people had the same problem but no one could give an answer.

I consider myself pretty adept at searching answers without really needing to post (which is why that was my very first post here). i hope someone out there has an idea :(

My 7D shows the same color in one corner during long time night exposures.

(The first time I saw it, I was excited and thought that I had captured some colored galaxy which was not visible by eye...)

Allan Olesen wrote: My 7D shows the same color in one corner during long time night exposures.

Totally different cause. That's thermal noise and is normal behavior.

It's also known as amp glow, the 7D's processor is right there where the pink spot is. It overheats going past like a 20 second exposure which creates a hot spot on the sensor.

Mark L wrote: But there are clearly three hotspots along the top of the image (and thus at the bottom of the sensor), so I don't see how amp glow can explain this.

It doesn't. The thermal noise/amp glow thing is something else and is off topic in this discussion. I suspect stiuskr knows this.

If the shutter is OK and there's no light leak, then it must be thermal glow. The image sensor is somehow heating up even if it isn't being used with the shutter closed. In the time you compose your picture, it collects infrared glow from its own circuitry.

Does anyone remember how to do the pixel mapping trick? IIRC set the dat to the first of the next month, turn on, take a pic, and reset the date to the current date. Was it like this? Maybe it helps.