John L. wrote:
Can you include what aspects of the filter tested
"bad" and some idea how bad is was (if possible)?
All I can do is run my SQF evaluation on the resulting slides. I'll leave it
to others to explain the differences, assuming there are any. I'm willing to
give them the filter if they have the equipment to quantify something. Right
now neither Bill Roger's nor I know to make of the bizarre star patterns (vs.
"crisp") in cheap filters. It is an assumption that they are bad and one
I'll try and test this evening, along with a Contax T2 lens test and a Tamron
80-200mm f/2.8 ED IF test.
Gary Reese
Las Vegas, NV
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