James M. McCall wrote:
There seem to be 2 kinds of these - those that clip on the bill of a
baseball hat and those that clip on glasses directly. Any
experiences with either type? Will the direct clip-on ones attach
over the polarizing lenses that I always have attached? Thanks.

I use two different types. Lately I've been using the ones that clip on
the baseball cap (and I use these for both tying and streamside.) I
don't like the models that clip on my glasses because I usually have my
sunglasses already clipped on my specs.

For tying itsy-bitsy flies, I've got a high-powered hood type magnifier.
--
TL,
Tim
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http://css.sbcma.com/timj/