Sorry, this entry is only available in Français.

Sorry, this entry is only available in Français.
Sorry, this entry is only available in Français.
The adhesive Lens Cap with Diffraction Gating SpectroKit® 2.0 for smartphone is now available to order.
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Order your diffraction grating slide and go to the hunt of UFO’s spectrums. Several methods are available to get yours at low cost. The diffraction grating remains as free.
Sorry, this entry is only available in Français.