Polarized blanks big diameter

**Connect** · 03-29-2007, 08:54 AM

Do you know where I could find SV polarized blanks in 80mm diameter ?

**gemstone** · 03-29-2007, 09:11 AM

Originally Posted by Connect

Do you know where I could find SV polarized blanks in 80mm diameter ?

Be careful. The blank may be 80 mm, but watch the marks on the 180 line for proper aligning the polarization. Some times they are quite far out on the lens.

**edKENdance** · 03-29-2007, 09:19 AM

We use 75's and decenter them for jobs with a lot of inset. The mirrored ones are more sketchy. Seems like the mirror coating is never centered correctly. Also not sure why they still need those hash marks and numbers on the edge of the lens. Ours now have an ink line on them but they still have the marks.