Canon Rumors Guy
Canon EOS 40D
- Jul 20, 2010
Canon News has uncovered a new optical formula patent for a Canon RF 28-70mm f/2.8. Canon seems to have worked quite hard at reducing the size of such a design significantly. The design in this patent is actually smaller than the highly-regarded Tamron 28-75mm f/2.8 Di III RXD for the Sony E mount.
Canon has a couple of lenses already covering this focal length, such as the RF 28-70mm f/2L and the RF 24-70mm f/2.8L IS, but as we saw with the EF mount, the EF 24-70mm f/4L IS was quite a popular option for people that didn’t want the size, expense or speed of the EF 24-70mm f/2.8L II.
With the EF 24-70mm f/4L IS being discontinued, there is likely a need for a smaller 24-70 type...