Use and erase, ULF, Positive Photochromic, Studio use Thin, Ready to cut polymer film

I found photochromic, thin big sheets of films are widely available at web , every quality , different prices , speeds , colors.
I found We can use them at our ULF studio cameras where taking speeds could be slow but scan speeds are high.
Photochromic films are for eyeglasses , windows or cars and they switch to darker shades with intensity of light.
They come as glass , plastic thick plates or ultra thin film where we can use them in our holders without need of modification.
They can be...

Click to expand...