Color:0.65mm Thickness 8"X11" A4 Diffraction Gratings sheets; Used for direct viewing and analysis of spectra; The quality of the spectrum is the brightest possible; Recommended to use in conjunction with colored film gels; Diffraction Gratings are used for direct viewing and analysis of spectra from different gas tubes and other light sources; The quality of the spectrum produced from these gratings is the brightest possible with a minimal distracting visual noise; These gratings are the principal component in a spectroscope and are used for experiments pertaining to the study of light and color.
M**I
No spirals, but boxes that were unimpressive and ugly
The sheets I received were boxes rather than spirals. I purchased to use to create rainbows in windows as well as candy making (yes, that's a thing) and it didn't work for either. I don't know what folks would normally use this for, but it didn't do what I was expecting. I purchased another diffraction film from another vendor and it worked perfectly for my use.
R**R
Long wait, nice results.
This product takes forever to recieve, but it works well. I made a piece of resin from this (risky as it takes forever to replace these), and placed it over my phone camera for these pictures of a light and an led blacklight.
Trustpilot
1 day ago
1 week ago
