Canon's fastest-ever 20mm lens packs an 11-blade f/1.4 aperture that should prove particularly handy for low light work, ...

We typically describe these types of surfaces using an aspheric lens equation or an aspheric equation. There are several variations, but the fundamental constants remain throughout many of those ...

The lens is designed with ten elements in nine groups, which includes one ultra-low dispersion lens and two plastic-molded ...

The RF 20mm F1.4L VCM hybrid lens brings Canon’s L-series quality to ultra-wide video and stills with fast autofocus and ...