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Re: [OM] Autocollimator tests on filters

Subject: Re: [OM] Autocollimator tests on filters
From: george <george@xxxxxxxxxxxxxxxxxx>
Date: Sun, 05 Mar 2000 09:26:35 -0800
Looks like Hoyas are a good bet.

george




Gary Reese wrote:
> 
> Ron S. writes:
> 
> << I noticed no mention of any B+W glass.  Obviously, pricey but I'm
> curious how they would stack up? >>
> 
> Some months ago I tested the filter sets I use on a regular basis.  I
> threw out the rejects, but here are my passed ones:
> 
> 58mm
> Hoya G(X1)
> Hoya Polarizer
> Tiffen Deep Yellow 15
> B&W 81A
> Hoya Y(K2)
> Hoya R(25A)
> Hoya O(G)
> 
> 55mm
> Olympus V28(Y2)
> Cokinlight Circular Polarizer
> Hoya R(25A)
> Hoya 81A
> Vivitar VMC 80A
> 
> 49mm
> Hoya FL-W
> Kenko ND4
> Hoya G(X0)
> Hoya O(G)
> Hoya HMC R(25A)
> Hoya G(X1)
> Tiffin 81B [marginal]
> Vivitar Polarizer (thin)
> Olympus L39(UV)
> Tiffen FL-D
> Hoya FL-Day
> Vivitar VMC 80A
> Vivitar VMC 85B
> Tamron 82A
> Vivitar VMC 81A
> 
> I distinctly recall throwing away brands and types within brands
> (example, Vivitar VMC) that marketing would lead us to believe are
> "premium."  Others who have tested have uncovered a fair share of bum
> Nikon filters.  I say it isn't the brand as much as it is quality
> control.
> 
> Gary Reese
> Las Vegas, NV
> 
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