2470

Canon announced the development of the so-called "holy trinity" of zoom lenses for the RF mount back in February, and it looks like they're about ready to release two of the three. According to the latest rumors out of Japan, the RF 15-35mm f/2.8L IS and RF 24-70mm f/2.8L IS will both be available for pre-order later this month.

Sigma has been on a tear as of late. Since late 2012, the company has put out a highly regarded 35mm f/1.4 lens, a novel USB dock that lets you calibrate lenses at home, and a revolutionary 18-35mm lens with a constant f/1.8 aperture (shown above).

It appears Sigma is only just getting warmed up: new rumors suggest that Sigma may be building a 24-70mm zoom lens for full frame cameras that boasts a constant f/2.0 aperture.