Review on Thousand Oaks Optical Solar Filter Sheet: Perfect for Telescopes, Binoculars, and Cameras! by Bryan Cavalcante

This is the real deal, Made in the USA. This material was more valuable than gold in the pre-GAE era and everyone wanted it. I tested it with various high brightness sources such as: They were able to see the structure of the LED crystal in great detail with a minimal amount of light. This filter medium is ideal for checking LED chip structures or as a low-intensity measurement for quality control. The UV laser does not pass nearly 100% through the filter. Just one or two random photons happen as the laser moves at different angles due to what I assume is scattering. I tested some of the recalled sunglasses from China and found that about 30% of my sample was UV to some degree. Please do not do this type of test with your own eyes, use the camera as a sensor instead. I have made various camera filters from filter film by carefully tracing the glass element of the disassembled UV filter and then reassembling the filter. with foil behind glass. Even my best cutting skills weren't enough to avoid imperfections around the edges, so I laid it on the back. Compressing the glass ensured the filter sheet adhered to the rear inner edge of the black anodized aluminum UV filter assembly, preventing light leakage. Ideally, it would be better to cut them with a laser. For personal viewing with my 20-100 x 70mm Monster binoculars, I made two identical cardboard tube rings around the outer rim of the objective lens, using a few wraps of 2 inch wide cardboard cut from a cereal box and then used a few wraps of tape to hold them together. together. Then I wrapped strong double sided tape around the outside of the tube rings. Sample. I then used these cardboard rings to mount the binoculars vertically and centered them over the pre-punched round filter foils. After everything is aligned and pressed against the filter foil and the cut surface, I cut outer radial slits in the "oversized area" of the foil around the perimeter rings of the cards at 1/2 inch intervals. This allows them to be bent. Foil "flaps" on the sides of the tubes and double-sided tape to tape everything together. A few more layers of silver plated Mylar tape were wrapped around these flaps to seal everything. Centerline for GAE and gave us a view of 2 m 39 s. Local weather conditions were slightly hazy and therefore we were able to see details on the lunar surface due to a slight corona eclipse. the most amazing astronomical convergence I have ever seen. If you missed them, you really missed them.