By technical editor Matt Allard:
Since the dawn of the DSLR revolution many have dreamed of putting a broadcast lens onto their Canon 5D. These days solutions are available from MTF and Fotodiox that can enlarge the image to cover the APS-C / Super35 formats, but the larger full-frame has been an impossibility – until now.
Renowned Tokyo custom conversion store Technical Farm have come up with a B4 2/3” to Canon EF full frame adaptor. Shown for the first time at the Inter BEE show in Tokyo this week, the adaptor enables the use of traditional 2/3” broadcast lenses on full frame cameras such as the Canon 5D and Sony a7S. An interesting design feature is that the adaptor is actually two pieces -by simply twisting off the EF adaptor you find a PL mount underneath. This means you can also use your 2/3” lenses on any PL mount camera (or an a7S with a PL to E-mount on it) making this one extremely versatile adaptor.
In order to cover the giant full-frame sensor image circle you have engage the 2x range extender on the ENG lens and you will lose 2 stops of light. However, with the amazing sensitivity of cameras like the a7S shooting at higher ISO to compensatie isn’t a problem. This adaptor looks to be a good option for breathing new life into older B4 glass – although being from Technical Farm it isn’t cheap at around $4000 US.
Technical farm were also showing off a new high hat as well as a custom low hat that was adjustable like a scissors lift.