Polarizing Film Sheet - set of 10, Model: 93493, Gadget & Electronics Store

I used these to temporarily convert a regular bright field microscope to a polarizing microscope. You need the top filter above the objectives and below the eyepiece. You need the bottom filter just above the light source. You turn the bottom filter to get the effect you want. It works great with crystals like ascorbic acid crystals. These sheets seem to be high quality and a good value. They are sufficiently thick, but cut easily with scissors to make circles. They have protective plastic on both sides which you peel off. The protective plastic is held on by static cling. There is no adhesive.

Bought these to use for a kids science class. Worked great but make sure to take off plastic film

easily scratched but these fit good over most cameras especially indoor security cameras to reduce glare in the window.

Polarizers go completely black when crossed( which is a good thing ) . Will be modifying these to fit a microscope to teach polarizing light microscopy . Will buy again . Recommended

Smaller then I thought, but I didn’t need more then that. I got it for my ring camera, it’s working great, there’s no adhesive, so I had to tape it down but it’s working great. It took the glare off and now I can see everything.

Got for use as a science project but see potential use for photography or other applications but sheets are very small and didn't seem worth it overall but was the most affordable option out there. FYI seller, not everyone needs 10 sheets or wants that specific size.

These were not the size that was in the description! What I received was 8cm x 8cm (about 3 1/8" x 3 1/8") when I bought mine, the description said 4.17"x 4.53" (Feb 2024)

I have an old Nikon upright compound microscope that I am using to look at collagen fibrosis in heart tissue. However, it was missing its polarizer and analyzer. I bought this and cut one sheet into two circles. One was placed in the base of the condenser above the light source. The other one was glued onto a metal circle and then placed above the specimen on the slide. By turning the top filter, I was able to see collagen birefringence perfectly!