nikonians

Even though we ARE Nikon lovers,we are NOT affiliated with Nikon Corp. in any way.

| |

Sign up Login
Home Forums Articles Galleries News Workshops Shop Recommended
members
All members Wiki Contests Vouchers Apps Newsletter THE NIKONIAN™ Magazines Podcasts Fundraising

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

digitalbio

Bainbridge Island, US
4 posts

Click to send email to this author Click to send private message to this author
digitalbio Registered since 21st Jan 2013
Mon 21-Jan-13 08:03 PM | edited Mon 21-Jan-13 10:38 PM by digitalbio

I've had my d5100 for almost a year and a few weeks ago I noticed that on a few of my photos shot against a blue sky there was a very faint overexposed arc towards the left third of the image (landscape mode). I was able to track it down to only images taken with very fast shutter speeds (>1600) regardless of lens used (in one case, a Sigma 150-500, in the other, the Nikon 10-24mm wide angle). This artifact was in the same place in the images regardless of the location of the light source. I've put some sample images here

http://www.billkraus.com/Other/Nikon-D5100-problem/27396694_Dn3rcV

I sent my camera into Nikon two weeks ago (just a month shy of the warranty running out), described the problem and pointed them to the example photos. I received it back today - but the repair notice indicates 'no problem found'. Unfortunately, the weather here is such that I won't be able to take test shots for a few days, but I was wondering if anyone has seen this before, as I am worried that they didn't really investigate the issue. Could it have been something inadvertently fixed via the complimentary 'check & clean' (fyi - my sensor has been cleaned before this)?

UPDATE: Its still there. Used yet another lens (Nikon 55-300) and took a few shots on a very overcast day - sure enough, the arc was there at fast shutter speeds. Contacted Nikon and they asked me to send them some sample NEFs. This artifact can't be normal.

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

G