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Thread started 21 Sep 2006 (Thursday) 02:33
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Dust, or Something else.

 
michaelbehlen
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Sep 21, 2006 02:33 |  #1

Hey guys, I just got my 17-40L and there seems to be somethign wrong with all the images. I tried cleaning the lense but the spots are stil there. Do I have a bad copy, or did I just not clean it good enough?

Sample:

IMAGE NOT FOUND
Byte size: ZERO | Content warning: NOT AN IMAGE

100% crop:
IMAGE NOT FOUND
Byte size: ZERO | Content warning: NOT AN IMAGE


There are three of these black dots on all the images from tonight(pissed). Thanks for your help.

Michael Behlen
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BearSummer
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Sep 21, 2006 02:45 |  #2

Hi Michaelbehlen,

Looks like its dust on your sensor not your lens, If it was on your lens it wouldnt be as clearly defined. If it's on your sensor then you need to be very careful cleaning it as it may make your waranty invalid.

There are lots of threads on how to clean your sensor so I wont bother repeating it here

All the best

BearSummer


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Kennymc
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Sep 21, 2006 02:48 |  #3

Looks like sensor dust... Try cleaning the sensor and both the front and rear elements of the lens...


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michaelbehlen
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Sep 21, 2006 02:51 |  #4

Alright guys, Ill take it down to the shop tomorrow. No comressed air for me. Thanks.


Michael Behlen
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Kennymc
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Sep 21, 2006 03:06 |  #5

michaelbehlen wrote in post #2016078 (external link)
Alright guys, Ill take it down to the shop tomorrow. No comressed air for me. Thanks.

Try holding it upside down set on bulb and use a blower brush, I use a Giotto rocket blower... You are right not to use compressed air...


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Jim ­ G
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Sep 21, 2006 03:12 |  #6

Yeah, I second the little handheld blowers.. so long as you don't poke anything on the insides with it and use a clean one you can't really damage the camera so no harm in trying :) As said above, do a search on here and there's a sticky somewhere I think :)


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stupot
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Sep 21, 2006 03:24 |  #7

i checked the exif, you were shooting at f22 so sensor dust is very likely to show up:)


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jestergx4
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Sep 21, 2006 09:00 |  #8

A few puffs from the Giotto Rocket Blower will take care of that.



  
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Jon
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Sep 21, 2006 12:25 |  #9

Sensor dirt, but from the edge effects it may be more than loose dust; may need a swabbing to get it off. Still, it's a fact of digital life.


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