Canon Extender EF 1.4x II  type_Darkroom Accessories is just fine

is just fine

But image quality is very good

8 ED MSC is a beautiful

A professional full-frame ultrawide lens with Canon's premium L glass and construction

There's an Arca-type clamp up top for camera mounting (plate is sold separately)

Canon Extender EF 1.4x II &nbsptype_Darkroom Accessories is just fineCanon Extender EF 1. 4x II teleconverter, in excellent cosmetic condition. Increases the effective focal length of the lens mounted to it by forty percent while maintaining complete communication between lens and camera. 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 pouch.