Artifacts on exported JPEG

One of my exported JPEGs has three or four vertical lines across it, like scratches on old movies. Has anyone else seen this? Is it worth keeping the evidence, or should I just re-export and hope the problem never recurs?

Not sure what happened to my last attempt at posting, but anyway, this already came up on the forum yesterday - the thread can be found at http://discussions.apple.com/thread.jspa?threadID=672936&tstart=75 .
Apparently it only affects Intel macs and only when 'fit to dimensions' is used, and only with images from certain cameras. Still not good, though. I'd suggest submitting feedback and sample images via the Aperture feedback page at http://www.apple.com/feedback/aperture.html .
Ian
G5 2x2GHz, tiBook 1GHz 15", MBP 2GHz 15"   Mac OS X (10.4.6)  

Similar Messages

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    mscriv wrote:
    So, I'm using Aperture 2 and I've got some questions about exporting from RAW to JPEG. I shoot with a Nikon D70 so original RAW files are 5-6mb in size. After doing some basic post processing when I export the pics at "full size" with picture quality of 11 out of 12 then the resulting JPEG is about half the file size of the original RAW file. For example a 5.6mb RAW becomes a 2.6mb JPEG. The resolution in pixels per inch and and the overall image size remain unchanged. Have I lost picture quality due to the exporting JPEG being smaller in file size?
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