5D sensor problem?

[vinhdn]

Hi guys,

I bought a 5D classic two years ago. Everything of the camera was great to me. I really love it. However, yesterday, I tried to take a photo with no light, and the photo completely broke my heart. I set the ISO at 50 and speed was just 1/500. The format is Raw, I just used Picasa to convert to jpg. The photo looks like this:

I was taken a back. Immediately, I took another photo of my room. It seems to be that there was nothing wrong with the second photo (I guess that):

I already re-update the firware, but the problem is still. Who knows what happened to my camera?

 

[Mt Spokane Photography]

A photo with no light? What you are probably seeing is a attempt to pull a non existent image up many stops so that you see garbage. You can do this by putting a cap on your lens.

ISO 50 and 1/500 sec requires a lot of light, outdoor type light.

Don't set your software to auto exposure adjustment, its trying to do the impossible.

 

[BozillaNZ]

It's the RAW processing software getting confused and tries to auto-exposure adjust a black frame.

As a result, that's completely normal. What you see is the electronic noise when you push completely black sensor data 5-6 stops. This image is supposed to be COMPLETELY BLACK.

If you don't see, or don't want to see this patterned colorful glory, go buy a D800. (me ducks...)

 

[Loswr]

If you don't see, or don't want to see this patterned colorful glory, go buy a D800. (me ducks...)

Where's Mikael when you need him? :

 

[adhocphotographer]

All the above posts apply and explain... No problem with the camera, but maybe the user! Luckily for you, it is cheaper to fix than there being a problem with the camera!

 

[vinhdn]

Thanks guys a lot. I have checked what you said. That's right! Picasa seems to increase exposure automatically. However, I have checked the image with Image Fastone and Photoshop. The image that is supposed to be completely black is not completely black at all. Here is the 100% crop of the image:

This photo is at 1/500s with no light at 400 iso. I still get this phenomenon at any Iso speed!

Is it because of the old camera?

Thanks in advance!

 

[Invertalon]

There is no problem. Even the modern 5D3 will do the same if you take a picture of the back of the lens cap and push it 10 stops in post.

If it looks fine with normal pictures, it is fine.

 

[duydaniel]

Try it on a 1DX and you will get the same.
This explains why aliens don't talk to us :

 

[MK5GTI]

I already re-update the firware, but the problem is still. Who knows what happened to my camera?

to the OP, is there a newer firware available for the 5Dc? I thought Canon never had an update?

 

[awinphoto]

Damn those 5d's and taking photos with lens caps on in total darkness... The 5d 3 has that friggen light leak issue, the 5d2 just cant focus, and now this? What has Canon done to cripple our dark photo image capabilities?!?