We flew to Aizu, Japanm to find out how some of the world’s best and most popular lenses are made at Sigma's one and only ...

I picked up a benchtop injection molding machine to play with, and thought a "simple" double convex singlet lens would be a good first project. Bodies of Three Missing U.S. Soldiers Recovered in ...

high-quality molds of lenses, good enough to try a few casting shots with epoxy resin. [Zach] ran into a few problems along the way, like proper resin selection, temperature control, mold release ...

In addition, user defined edge configurations can be specified, incorporated into the lens/mold design and directly machined. The machine is built on a natural granite base and utilizes a passive ...