MTF Services Ltd B4 2/3" to Canon EF Adaptor

An original design by Mike Tapa and Alister Chapman. The B4 2/3" broadcast lens to Canon EF adaptor is a useful way of utilizing all of your B4 mounted lenses on APS-C and Super35 sized sensor cameras such as the Canon 7D, the Canon C300 and the Blackmagic Cinema Camera EF, as well as the upcoming Blackmagic Production Camera 4K. Note: • If using the adaptor with a Canon 1D C, the camera must be in video mode set to Super35 crop• Can only be used on B4 2/3" lenses with built in 2x extender engaged, HD lenses recommended