Canon Extender EF 2x II lighting Basic and easy to use-

Basic and easy to use- and it runs off a pair of common AA batteries (included)

These viewfinders have interchangeable masks for different formats

so we're mot taking about cutting edge technology: the screen is tiny

with some finish wear and slightly tacky rubber paint

Canon Extender EF 2x II lighting Basic and easy to use-Canon Extender EF 2x II teleconverter, in excellent cosmetic condition. Doubles the effective focal length of the lens mounted to it. Since the teleconverter extends into the back of the lens, not all lenses may be mounted. Please confirm compatibility between your intended lens and this teleconverter. Clean glass and excellent function. Includes front and rear caps, pouch, and box.