Download Canon’s EF 40mm Autofocus Firmware Fix
Did you buy the Canon 40mm f/2.8 pancake lens, that our very own Jaron Schneider reviewed, only to be disappointed when it’s autofocus stopped working? Well don’t sweat it. Canon just released firmware 1.2.0 to rectify the problem. The downside is you need to be the proud owner of a Canon EOS 1D X, 5D III (at v1.1.3 or later) or a Rebel T4i/650D to install the upgrade. All others will need to send their lens into Canon Service. Eek!