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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 02 Oct 2013 (Wednesday) 19:45
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Sensor Problems?

 
mayeetaness
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Oct 02, 2013 19:45 |  #1

Good day all! I badly need help.
Can you please tell me what are those red specks that appear on all my images and videos?
I can even see them on the view finder when zoomed in 5x and 10x.
The rest of my camera functions are just working fine.
Please tell me if these are sensor problems and need to be replaced.
Taken from Canon 5d Mark II.

I thank y'all for your help.

http://img.photobucket​.com …ures%20of%20doo​m/doom.jpg (external link)
http://img.photobucket​.com …res%20of%20doom​/doom1.jpg (external link)
http://img.photobucket​.com …res%20of%20doom​/doom2.jpg (external link)




  
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tat3406
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Oct 02, 2013 19:57 |  #2

Have u try to clean or blows the sensor?


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Carl Zeiss MP 50
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mayeetaness
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Oct 02, 2013 20:08 |  #3

Yep I did. And have tried manual cleaning several times.
Is this how a scratched low pass filter looks like?

Thanks for your help.




  
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ejenner
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Oct 02, 2013 20:16 |  #4

mayeetaness wrote in post #16342044 (external link)
Is this how a scratched low pass filter looks like?

Thanks for your help.

No, it looks like dust, not colored. No idea how something could become colored like that unless photosites are damaged. However, if you can see them in the viewfinder, it can't be the sensor. But how can you zoom in with the viewfinder? Do you mean LV?

I assume they are present in the same places on all lenses and apertures then?


Edward Jenner
5DIV, M6, GX1 II, Sig15mm FE, 16-35 F4,TS-E 17, TS-E 24, M11-22, M18-150 ,24-105, T45 1.8VC, 70-200 f4 IS, 70-200 2.8 vII, Sig 85 1.4, 100L, 135L, 400DOII.
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mayeetaness
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Oct 02, 2013 20:50 |  #5

ejenner wrote in post #16342057 (external link)
No, it looks like dust, not colored. No idea how something could become colored like that unless photosites are damaged. However, if you can see them in the viewfinder, it can't be the sensor. But how can you zoom in with the viewfinder? Do you mean LV?

I assume they are present in the same places on all lenses and apertures then?

Yes, live view mean I mean. Thanks for clarifying.
Even in live view it looks bright red. And yes, remains present at the same spot on all lenses, apertures, iso and shutter speed.
A friend has cleaned the sensor already yet it remains there.




  
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ejenner
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Oct 02, 2013 22:48 |  #6

mayeetaness wrote in post #16342118 (external link)
Yes, live view mean I mean. Thanks for clarifying.
Even in live view it looks bright red. And yes, remains present at the same spot on all lenses, apertures, iso and shutter speed.
A friend has cleaned the sensor already yet it remains there.

OK, I think it must be the sensor itself gone bad. I say this because anything on the surface of the sensor, or even a scratched AA filter will not be visible at wide open apertures (say f4-f5.6) unless it is huge (you'd be able to see it by just looking at the sensor), but will become visible as you stop down to f8-f16. Plus dirt just looks like black 'shadows' becoming more in-focus as you stop down. Even scratches (I have some small ones on my 5DII) will look just like dirt on the sensor filter.


However, I have never seen anything like this posted before, I just can't imagine what else it could be.


Edward Jenner
5DIV, M6, GX1 II, Sig15mm FE, 16-35 F4,TS-E 17, TS-E 24, M11-22, M18-150 ,24-105, T45 1.8VC, 70-200 f4 IS, 70-200 2.8 vII, Sig 85 1.4, 100L, 135L, 400DOII.
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joeseph
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Oct 03, 2013 03:01 |  #7

scratched sensor example:


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:oops:

some fairly old canon camera stuff, canon lenses, Manfrotto "thingy", 1D MK II converted for IR, and now an M5
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mayeetaness
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Oct 03, 2013 09:20 |  #8

ejenner wrote in post #16342342 (external link)
OK, I think it must be the sensor itself gone bad. I say this because anything on the surface of the sensor, or even a scratched AA filter will not be visible at wide open apertures (say f4-f5.6) unless it is huge (you'd be able to see it by just looking at the sensor), but will become visible as you stop down to f8-f16. Plus dirt just looks like black 'shadows' becoming more in-focus as you stop down. Even scratches (I have some small ones on my 5DII) will look just like dirt on the sensor filter.


However, I have never seen anything like this posted before, I just can't imagine what else it could be.

Awww.. it is just so bad hearing this. In fact, I can still use the camera just to make sure that I will frame it properly, placing the blemished part on a dark background.

I do appreciate all your help.




  
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Frodge
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Oct 03, 2013 09:40 |  #9

Can't you clone the specs out?


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Nicholas ­ R.
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Oct 03, 2013 11:28 as a reply to  @ Frodge's post |  #10

mayeetaness,

It's very difficult to tell by those test shots. Have you actually looked at the sensor with or without a magnifier? If so, the debris field should be visible with the naked eye.

It would help a great deal if you took a shot of a pure blue sky stopped down to f/22, reduce it to about 1 MB then post it here.

Nicholas
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N2bnfunn
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Oct 03, 2013 12:05 |  #11

Are you a CPS member? I would suggest you sent it back to canon and let them clean and inspect it.


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