>I've often wondered
>why some magazine didn't undertake collimator examination of a wide
>variety of filter brands for plano-parallelism. It would be a relatively
>low-cost project, and would settle endless discussion and well-aerated
>claims about filter quality.
Les is again using that advanced education to good result. The cynic in me
says the advertising department has too big a hand in things.
Bill Pearce
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