[at-l] Checking for polarized lenses

[dekkerd@rocketmail.com (Rob)]

You can check to see if sunglasses have polarized lenses. Take 2 pair
off the rack. put one lense on top of the other. Rotate the top pair,
keeping the lenses on top of each other. If the lenses are polarized,
you'll be able to block 100% of the light coming through. -Rob



--

 - Posted via http://forums.backcountry.net