I have purchased some 2nd hand fresnel lights. http://www.strandarc...nstructions.pdf
By removing the lens, I believe to get a bit more light and great shadows (chief reason to go lensless), yet not sure how safe that would be in case of lamp failure.
Would it be a good idea to use a square of tempered or laminated glass in the colour frame as a precaution?
On the other hand openface fixtures only have a scrim..
Many thanks in advance!