Canon Extender EF 2x II brand_Kodak and it requires CF cards

and it requires CF cards for storage (a 32GB card is included)

The low-profile design is great for wide angle lenses

This is a new-production version of the classic Zenit Jupiter-3

This is the thing you need

Canon Extender EF 2x II brand_Kodak and it requires CF cardsCanon 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.