مُكبر كانون EF 2x مارك III مستعمل

The mount is rock solid and clicks in exactly like a native lens—zero wobble. I’ve been shooting birds at 400mm all weekend and the autofocus still locks on fast enough for my needs. Backing up your glass with this is a no-brainer.

I was worried about losing light, but autofocus on my 70-200mm f/2.8 still locks fast even in overcast conditions.

Sharpness holds up way better than I expected for a 2x converter—at f/8 on my 200mm it's still perfectly usable for wildlife shots. The build feels solid and the locking mechanism is reassuringly tight, though it does add noticeable weight to the lens. For the price of a used unit, it's a bargain wa