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Perfect, just what I was looking for. Thanks!

Thanks guys. Do you lay the razor flat on a light background and move the scope, or put the blade in the grove between the black and white plastic?

:HJ

What's the best way to use the RS microscope- I get it focused, then move across the blade, then not focused- I'm sure it's user error. Sigh. Also if anyone is looking for it, here's the...