and in the process discovered that stacking two different Fresnel lenses and putting them in a 3D printed housing yielded a very compact pancake-like unit that gave encouraging results.

Making a traditional glass lens requires a lot of experience, skill, and patience grinding a piece of glass to the required shape, and is not for the casual experimenter. Making a glass Fresnel ...

Lens brand TTArtisan just announced a new lens – and it’s a limited edition take of an autofocus pancake lens. The TTArtisan ...

The Samyang Remaster Slim is one of those lenses that needs a little explaining. Indeed, the bit that looks like a lens isn't actually a lens at all; it's a module. It's into this module that you ...