Canon RF 28-70mm F2L USM is an Auto Focus (AF)
Standard Zoom lens with 35mm FF max sensor coverage and it is designed to be used with Canon RF mount cameras.
Lens Mount
Canon RF 28-70mm F2L USM is compatible with cameras that have Canon RF lens mount.Some of the latest released cameras with Canon RF lens mount are
Canon R5,
Canon R6 and
Canon RP.
Sensor Coverage
Max sensor coverage of Canon RF 28-70mm F2L USM is 35mm FF.
Focal Range
Canon RF 28-70mm F2L USM has a focal range of 28-70mm and 2.5X zoom ratio.
Body Colour
Canon RF 28-70mm F2L USM is available in Black color.
Zoom Method
Canon RF 28-70mm F2L USM features Rotary (extending) zoom method where the length of the lens changes as you zoom in or out. This makes it possible to design the lens with a smaller minimum length ( generally when it is zoomed out) compared to internal zoom lenses. The disadvantages of this design are being harder to seal against dust and moisture, weight balance shifting while zooming and zoom creep in certain lenses.
Aperture
Canon RF 28-70mm F2L USM is a fixed aperture lens with a constant max aperture of f2 from 28mm all the way to the 70mm .
Optical Formula
Canon RF 28-70mm F2L USM's optical formula consists of 19 elements in 13 groups. Following special elements are used in this design:
- UD + aspherical elements
- Air Sphere
- SWC
- fluorine coatings