Dandelions - AF confirm chip (Programmable) for Canon EOS Camera 
by MEHMET HAKAN OZSARAC
Date Added: Sunday 10 July, 2011
My Camera is Canon EOS 5D Mark II + Samyang 35 f:1.4 .I programmed AF chip to f:7.1 and I can not hear confirmation beep and I want to reset it back my AF chip to factory settings.
How can I do this ? Thank you for your helping.