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Strange over exposed arc artifact at fast shutter speed...

digitalbio

Bainbridge Island, US
4 posts

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"RE: Strange over exposed arc artifact at fast shutter speeds in d5100?"

digitalbio Registered since 21st Jan 2013
Thu 24-Jan-13 03:10 PM | edited Thu 24-Jan-13 03:11 PM by digitalbio

Hi Philip

Nikon cleaned the sensor as part of the servicing, and the artifact only appears at fast shutter speeds, so it unlikely to be a physical problem with the sensor itself. My uneducated guess is that it is a problem with the shutter - in fact, after much searching (this appears not to be a common problem) I was able to google a similar issue someone had with a Canon EOS 30D - a semi circular over exposed crescent in all shots at fast shutter speeds. In that case, it was suggested that this was the result of a problem with the synchronous operation of the shutter blades (http://photo.net/canon-eos-digital-camera-forum/00LS88).

Upon calling Nikon after I received my camera and found it still had the same problem, they requested I send some sample NEF files, which I did, and to their credit they did finally concur that there is an issue. I am now awaiting a prepaid shipping label to send the camera back.

What is very frustrating is that the camera was just there for two weeks for this exact problem - I wrote a detailed description of the issue and gave them both the links to my gallery showing the artifact as well as a link to the description by the Canon user. It seems that whomever serviced it during the first go around didn't actually investigate the problem by testing the camera at high shutter speeds - likely just ran the camera through some standard checks and stated 'no problem found'.

A general, generic topic Strange over exposed arc artifact at fast shutter speed... [View all] , digitalbio , Mon 21-Jan-13 08:03 PM
Subject Author Message Date ID
Reply message RE: Strange over exposed arc artifact at fast shutter s... WildIsle Silver Member
24th Jan 2013
1
Reply message RE: Strange over exposed arc artifact at fast shutter s... digitalbio
24th Jan 2013
2
     Reply message RE: Strange over exposed arc artifact at fast shutter s... digitalbio
13th Feb 2013
3
     Reply message RE: Strange over exposed arc artifact at fast shutter s... digitalbio
01st Mar 2013
5
Reply message RE: Strange over exposed arc artifact at fast shutter s... dagoldst Gold Member
16th Feb 2013
4