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<blockquote data-quote="Dave_W" data-source="post: 85564" data-attributes="member: 9521">I bought this particular one June 25th, to be exact. I was shooting the Miramar airshow when it suddenly stopped auto-focusing. I turned it on and off a couple times and suddenly it started focusing again but making a strange sound. That lasted about 10 releases after which I started getting an &quot;err&quot;. The images were cut in half horizontally and I only assume the shutter completely died on me. Looking back, some things about the shoot are now making sense. My sensor started off perfectly clean but over the course of that day it got progressively dirtier and dirtier. And the dirt on the sensor was moving, starting off in the upper left and going diagonally with time. By the end of the day there were a multitude of little spots, mostly in the upper half of the sensor. I can only assume I was seeing the shutter mechanism falling apart. It sucks that it happened but now in theory I'm back to day one and hopefully I can get the full 200,000 actuations the shutter is rated for.</blockquote>

[QUOTE="Dave_W, post: 85564, member: 9521"] I bought this particular one June 25th, to be exact. I was shooting the Miramar airshow when it suddenly stopped auto-focusing. I turned it on and off a couple times and suddenly it started focusing again but making a strange sound. That lasted about 10 releases after which I started getting an "err". The images were cut in half horizontally and I only assume the shutter completely died on me. Looking back, some things about the shoot are now making sense. My sensor started off perfectly clean but over the course of that day it got progressively dirtier and dirtier. And the dirt on the sensor was moving, starting off in the upper left and going diagonally with time. By the end of the day there were a multitude of little spots, mostly in the upper half of the sensor. I can only assume I was seeing the shutter mechanism falling apart. It sucks that it happened but now in theory I'm back to day one and hopefully I can get the full 200,000 actuations the shutter is rated for. [/QUOTE]

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