This document explains, step by step, how to make a small equipment that will adapt a diffraction grating on the objective of your mobile phone.
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After a month spent going back and forth with a Professional 3D Printing Society, and some modifications in order to decipher as
Sorry, this entry is only available in Français.
Fifty diffraction gratings are about to be delivered to Ukraine. A warm thank to the private groups from Eastern Europe who realized the importance of these free, easy to use small devices.