Andrea Fialho Wanderley
So sad about this lens! Aperture cable has ripped. This is a well known design defect of this lens model. If you buy brand new, youll have this problem in a couple of years of use. If you buy used, it is about to happen at any time. Search the Err 01 at 24-105 f4 on the internet and you will find all buyers talking about this subject. A truly good lens as long as you dont have this manufacturing problem.