Canon RF mount: Complete Lens Guide

Watch this before buying a Canon lens

Thorough and informative. It is not a sales pitch it is an educational video that will helps one make an informed decision and not get carried away by the sales glossies and action videos.

i now understand the lenses and how to buy one ibrecommend this course for any one who want to know about canon lenses and understand them and want to decide which lense to buy next

excellent thanks