A convex mirror produces a diverging effect, meaning that it causes light rays to spread outward instead of focusing. The image formed by a convex mirror is always virtual, upright, and smaller ...

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. Ukraine repels Russian air attack with French Mirage ...

The highly convex front element and fixed lens hood mean that you can’t fit regular filters to the front – the 8-25mm f/4 would be better for that – but you could argue that with the OM-1 II’s Live ND ...

This is the Fall’20 course homepage for EEOR E4650: Convex Optimization for Electrical Engineering. Note: The official name for the course is “Convex optimization for electrical engineering”. However, ...

Zeiss is returning to making lenses for stills cameras, introducing the Otus ML line with new 50mm and 85mm F1.4 lenses for E, RF, and Z mounts. The lenses are manual focus only, but are focused on ...

High-end German optics company Zeiss is back in the photo game. On Tuesday, February 25, Zeiss unveiled the new Otus ML lens family, a move that brings the company’s earlier f/1.4 primes to mirrorless ...

Sigma has announced the 300-600mm F4 DG OS Sports lens, designed specifically for applications like sports, action and wildlife photography. Recent Videos Optically, the lens is built around 28 ...