Greetings! This is what happens to my canon ef100-400 lens. I strip the 3 screws and it took me more than an hour to extract the 3 screws. I replaced the screw with a new sets. Make sure you use the right Phillips + screwdriver. .
I have a canon ef100-400 and it has an af that does not work. The af switch don’t work. So, I open the back where the ribbon cable from the af switch go and found out that ribbon that is supposed to stick on the side of the barrel delaminate and I st...
