Diffraction Grating sheet 500 lines per mm Linear 1ft
D**R
Five Stars
As described and arrived on time.
P**T
wrinkled mess
I saw the other reviews and hoped they were just unlucky. Though the package was fine, the film arrived today looking as if it had been beat with a screwdriver and a hammer. The picture doesn't really do justice to the shape of this film. Garbage. Don't take the risk. Find someone else to buy from. Very disappointing.
B**T
Five Stars
very good !
J**Y
Diffraction very subtle
I was thinking this product was going to be like a pair of firework glasses, not the case. It does break light up into its spectral colors, but it's only one line of diffraction as opposed to the many lines found in firework glasses.
T**A
Utter crap
The product was delivered full of dents and wrinkles. Totally unusable for anything. Avoid at all costs.
M**A
One Star
The double axis grating came like if was treated as toilet paper.
B**S
Yikes...
Box was not wrinkled, but some how the film was inside...
S**E
fast but crumple
There are many creases on the grating sheet.
Trustpilot
4 days ago
3 weeks ago