These days, camera lenses aren’t just simple bits of glass in sliding metal or plastic housings. They’ve often got a whole bunch of electronics built in as well. [Dan K] had just such a lens from ...

Camera lenses are expensive and if you’re like us, you can easily find really cheap lenses that your camera can’t use. [Sam] has a Canon EOS and a bunch of old-school FD lenses at his disposal.

The Canon Mount Adapter EF-EOS M ($199.99 direct) is simple in concept: It makes it possible to use EF-S and EF Canon SLRs lenses on the company's freshman entry into the compact interchangeable lens ...