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Old 05-05-2011, 12:50 PM
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koputai (Jason)
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koputai is offline
Join Date: Nov 2007
Location: Canberra, Australia
Posts: 1,633
I think I've found the problem.

The rear element and it's holder in the back of the lens are wobbly.
I set up an artifical star and shot down the hallway. What was strange
was that the abberation stayed in the vertical plane no matter which
way up I held the camera. This made me think the was glass moving
due to gravity. On inspection yep, the rear element is flopping about.
It doesn't unscrew or screw up though, so I'm not sure what is loose.
I think I'll break out the little screwdrivers and pull it apart.

Thanks for all your ideas guys, much appreciated.

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