http://www.srbfilm.co.uk/publish/page14.html
Karen Clanin wrote:
can anyone tell me what those little round pieces of thick blue acrylic are called? you look through them to make everything look like a monochrome to see values etc which are not as obvious when you look at things in color and take it in b & w.
i have my husbands but want to get one for a friend and don't even know what to search for.
karen
