The B4 2/3 broadcast lens to 1/3rd inch bayonet adaptor is a useful way of utilizing all of your B4 mounted lenses on the following 1/3 chip cameras: JVC GY-HD, JVC GY-HM700, Sony HVR-Z7, Sony HVR-S270, Panasonic HXP300.
A simple, non electronic adaptor allowing you to fit a canon EF lens to your EX3. Aperture to be set on a camera body before shooting. (Please note. Using this adaptor will introduce a magnification factor of 5.4X)