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sleeping
Post subject: Interesting filter testing  PostPosted: 06.15.2011 18:14
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Joined: 21.12.2005 Posts: 840

http://www.lensrentals.com/blog/2011/06/good-times-with-bad-filters
 
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lokisbong
Post subject: RE: Interesting filter testing  PostPosted: 06.15.2011 18:58
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Joined: 21.04.2007 Posts: 1323

That is one hell of a stack of uv filters. It definitely showed a drastic change between the 5 stack of good vs 5 cheap filters. I had a cheap uv filter from walmart and only used it a few times because even the one cheap filter seemed to degrade photo quality a lot. I ended up taking the glass out of it and putting the empty filter ring on my circular polarizer filter to have a bit more ring to grab and turn. I have not noticed any vignetting so it has stayed.

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orionid
Post subject: RE: Interesting filter testing  PostPosted: 06.15.2011 19:00
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Joined: 04.09.2008 Posts: 2843

My cheap UV filters are in a box somewhere. I pretty much take the risk of not using them after seeing noticeable degradation.

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