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Author Topic: Mark iii - fixed noise spot  (Read 1073 times)

Dana_B

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Mark iii - fixed noise spot
« on: November 13, 2012, 01:50:57 PM »
hey,
I have a new Canon 5D Mark iii body.
For a Specific project I work on I usually use an iso 100 and exposure speed of 0.3 sec.
After examining my photos I noticed that I have a fixed noise spot on all of the photos.
As the exposure is longer the spot becomes more vibrant magenta.
Do you have any idea what is going on? and more important, how can i avoid having this noise.

Thanks
Dana

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Mark iii - fixed noise spot
« on: November 13, 2012, 01:50:57 PM »

rpt

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Re: Mark iii - fixed noise spot
« Reply #1 on: November 13, 2012, 01:59:20 PM »
hey,
I have a new Canon 5D Mark iii body.
For a Specific project I work on I usually use an iso 100 and exposure speed of 0.3 sec.
After examining my photos I noticed that I have a fixed noise spot on all of the photos.
As the exposure is longer the spot becomes more vibrant magenta.
Do you have any idea what is going on? and more important, how can i avoid having this noise.

Thanks
Dana
Does it happen with all your lenses?
Could you post images?

Mt Spokane Photography

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Re: Mark iii - fixed noise spot
« Reply #2 on: November 14, 2012, 08:08:05 PM »

Its called a hot or stuck pixel.  Sometimes the user can map them out, and NR usually makes them disappear. 
 
You can google map out hot pixel for the process, or read this.  http://www.slashgear.com/how-to-remove-stuck-pixel-on-your-digital-slr-2227392/
If thats not successful, Canon can map it out.

Dana_B

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Re: Mark iii - fixed noise spot
« Reply #3 on: November 15, 2012, 04:14:44 PM »
At the moment I use only one lens - Canon 50mm 1.4.
I attached a photo that shows my noisey magenta spot.

Thank you Mt Spokane Photography. I will try to check the hot pixel subject...

Dana_B

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Re: Mark iii - fixed noise spot
« Reply #4 on: November 18, 2012, 12:41:02 PM »
I believe it worked!
Thank you so much....!

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Re: Mark iii - fixed noise spot
« Reply #4 on: November 18, 2012, 12:41:02 PM »