Polarizing Film - Polarizing Filter - Standard Grade

Dimensions of the products I received were:4.224"x4.260"x0.006" or for you metric folk107.29mm x 108.20mm x 0.15mm.The dimensions seemed somewhat arbitrary, so it may vary per order. The "quantization error" of the thickness measurement is pretty high, so keep that in mind.The product comes with a small card made to test sunglasses with. Adding everything up, I would guess that this comes from a 3rd party vendor that purchases scrap pieces from manufacturing, and sells the 4x4ish cuts on Amazon with the card. I haven't looked into it, so I could very well be wrong about that last point.The material seems a bit roughly treated at first, with small scratches all over. I didn't bother showing a picture because the scratches only exist on the protective film layer.As stated, the product comes with a protective film. You can see the quantum mechanics at play; I did not remove the film for the perpendicular sheet picture in which the card shows through. After removing the film, it is nearly impossible to see through the sheets. Keep in mind the sheets come slightly curved, so my "black out" picture may have shown some slight off-axis characteristics. I can assure you that holding these perpendicular will ward visible light to a very high degree.On that note, (as you have probably noticed by now), the sheets are linearly polarized. You can see the direction in the sunglasses picture. To clarify, the polarization axes run along the dimension which curves.Unfortunately, I haven't had the chance to throw this in a spectrometer, but I'm confident this would meet or exceed the stated specs.Hope this helps.

great product worked great as expected

The filter came with very visible scratches making it useless for most purposes. It cannot be used for photography since it distorts sunlight.

If you are wanting to use this for microscopy, cameras, etc. I wouldnt buy it, It came with scratches over the surface of the material. For other uses though the film works.

Many reviews about bad clarity or scratches had me a little worried, but that is just the protective film on both sides that must be removed. Yes, this is for one sheet only.

Exactly as described. not sure what to say, I don't know how this product could be anything other than a 5-star review or a 1. It is very slightly larger than advertised, and it is linearly polarised.

I was attempting to use this polarizing film to use with a microscope. This film is hazy and produces a VERY blurry view so it is useless for anything optical.

This polarizing film is fine but I expected it to be self adhesive. This film is not self adhesive. I may have misunderstood the description, but I was disappointed nevertheless.