The Positive Meniscus Lenses are a convex-concave lens, but it is thicker at the center than at the edges. They are felt polished and are used universally in the ophthalmic industry where convention ...

Cosina is set to release one of the first lenses of 2025 with its new Voigtländer Nokton 28mm f/1.5 Aspherical E-mount lens, offering a compact yet powerful option for full-frame Sony mirrorless ...