Gear Talk > Canon General

Light leak from status LED in long exposures 5Dm3

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visioningenuity:
This weekend I was taking some long exposures of the sky and saw that there was a red streak near the bottom of the frame, it is the same color as the red status LED that stays illuminated durring the exposure.  Is this normal?  Can I turn off the status LED?  Here is a link to the image:

http://jamesmjohnson.com/~jjohnson/LP8C6653.JPG

I was using a Canon 5D Mark III with the 24-105 zoom.
Jim

Mt Spokane Photography:
I have seen the lower right corner and, the upper right corner show some sort of amp noise at high ISO low light, but I haven't seen what you are describing. 

victorwol:
I have taken photos like that with the MKIII and I've not seen a problem like that.

Aglet:

--- Quote from: visioningenuity on April 23, 2012, 12:55:16 PM ---This weekend I was taking some long exposures of the sky and saw that there was a red streak near the bottom of the frame,..
--- End quote ---

Wow, I wasn't expecting to see that!
I've never seen that kind of light leak issue in any of my older bodies.

no chance of the lens having picked up a stray red LED or taillight or something anywhere out of the frame that may have flared in? (tho it doesn't look anything like any flare I've ever seen)

weixing:
Hi,

--- Quote from: visioningenuity on April 23, 2012, 12:55:16 PM ---This weekend I was taking some long exposures of the sky and saw that there was a red streak near the bottom of the frame, it is the same color as the red status LED that stays illuminated durring the exposure.  Is this normal?  Can I turn off the status LED?  Here is a link to the image:

http://jamesmjohnson.com/~jjohnson/LP8C6653.JPG

I was using a Canon 5D Mark III with the 24-105 zoom.
Jim

--- End quote ---

    You should try taken another shot with the same setting (may be with body cap on... a dark frame) and see does the red light still there. If it cause by the red LED status light, you should be able to get a repeatable image.

   Have a nice day.

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