Recent content by ronbo613

It's hard to tell the exact size of that dome, but it looks like a compass dome we use for smaller fisheye lenses, like the Nikkor 16mm. I'm guessing there is a "lip" or flange at the bottom that holds the dome to the housing? For the best quality, you'd want a dome that fits very close to the...

Most of the scratch resistant plastics have a little less optical quality than the standard versions. Also, unless they can sell truckloads of the stuff, local plastic stores won't carry it. Cast and polished acrylic domes have pretty good quality. If there is any distortion, it will probably be...

Generally, cast acrylic transmits about 95% of the visible spectrum, the 5% not transmitted is on the "blue" end, nearly into the ultraviolet(UV) range. If you are familiar with photography, a filter commonly used to protect a lens is a UV filter, so that works out pretty good. This is...

Thanks again everyone for your help. I've been checking around, the place I normally get my plastic from carries Plexi G, so I'm going to give that a shot. It's less than $100/sheet, about half what I was paying for Lucite. For some reason the Polycast seems hard to find around here, but I'm...

Thanks for the input Louey-I use 3/8" Plexi for some parts so I'm hoping the 1/4" will be at least as good. I think I may have used some Acrylite in the past, it may have been the extruded stuff. First hand info is the best. The technical specs can only tell you so much. I like to hear from...

Hello everyone-I wandered in here while looking for information about cast acrylic, maybe some of you can give me some of your opinions. While you guys try to keep water in, I try to keep water out. Here's my website, I've attached a small photo below as well. We make these housings for...