I am trying to find a cheap alternative for a fresnel, and I came across a website called 3Dlens.com- Does anybody have any experience with this company? They have one made out of "optical acrylic" (sounds durable...!) and is 2mm thick. I would have to cut it down to size, but I don't think it would be too difficult- I just have to make sure the center circle remains in the center, right? I only recently discovered that fresnels have different focal length, and a "normal" is advised if not shooting alot of wide lenses. I have a 5x7 and this one's focal length is 200mm. It sounds like a perfect match for my 210mm normal lens- would it be ok for longer and wider lenses as well? I know Office Depot etc carry these cheap page magnifiers, and I tried that route, but they're pretty poor quality. The one I found was all scratched up too. The fresnel at this website is around USD$25 shipped, so it's probably worth a try, but should I practice cutting and mounting on one of the $5 Office Depot cheapies first?
Thanks,
Tim
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