Canon on Oct. 18 unveiled the lithography system ... It requires many lenses and mirrors to narrow the light beam and calls for repeated irradiation processes. This leads to high production ...

The taller the column, the better the lens performance. For this review, the lens was tested on a Canon EOS 5DS R using Imatest. CA (Chromatic Aberration) is virtually non-existent at the centre ...

This is a very high standard of sharpness and it is no surprise that the lens turns in sharp, crisp images right through its focal length range. The blue column represents readings from the centre ...