Al DeLory Posted June 8, 2009 Share Posted June 8, 2009 Hello, Recently, my Zeiss Vario-Sonnar 12-120mm, T2.4 Super-16 zoom has shown more than normal breathing and excessive vignetting when zoomed out and at a close focus distance. It has always exhibited some amounts of both, but has seemed to have gotten worse lately. The lens seems fine in terms of there being no visible damage and all rings turn as smoothly as ever. I'm about to get it collimated just to see if that detects anything abnormal as a first test, but could anyone recommend another test or procedure to help in diagnosis? Has anyone had experience with a similar lens showing this type of thing over age? Thanks for any input. Al DeLory Link to comment Share on other sites More sharing options...
Matt Workman Posted June 9, 2009 Share Posted June 9, 2009 I've used that lens before and it definitely has breathing/vignette issues on the wide end. Much more than the Canon 7-64mm. Is it a rehoused 16mm or a manufactured s16mm lens? Matt Link to comment Share on other sites More sharing options...
Al DeLory Posted June 9, 2009 Author Share Posted June 9, 2009 I've used that lens before and it definitely has breathing/vignette issues on the wide end. Much more than the Canon 7-64mm. Is it a rehoused 16mm or a manufactured s16mm lens? Matt It is a manufactured lens and as far as I know has never been disassembled or rehoused in any way. I'm still baffled how this would get worse over time when all other aspects of the lens seem the same as always. Link to comment Share on other sites More sharing options...
Premium Member Stephen Williams Posted June 9, 2009 Premium Member Share Posted June 9, 2009 It is a manufactured lens and as far as I know has never been disassembled or rehoused in any way. I'm still baffled how this would get worse over time when all other aspects of the lens seem the same as always. Hi, I think you may be focusing closer than the nearest mark on the lens, there is a reason for that mark. The lens does breathe badly but it's small light , sharp & cheap. You can't have everything. Stephen Link to comment Share on other sites More sharing options...
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