THE LENS BUILT TO TAKE A BEATING The heart of the GDU 40mm is a Canon 40mm F2.8 optical block stripped down to its core and then built back up with an armored precision machined mil spec 7075 Aluminum housing. The manual focus ring has been completely removed for strength and to avoid accidental focus adjustments and all movement is regulated to it's internal STM motors for remote focus and iris control. An electronic Stainless Steel Canon EF mount finishes off the rear and out front the GDU 40mm Includes a 37mm protective UV filter inset within a 46mm non-threaded protective ridge.
- 8k Vista Vision / Full Frame / Super 35mm / APS-C coverage in an strong, lightweight and slim design. Perfect for RED 4k, 5k, 6k, and 8k cameras with Canon Mount, Canon video cameras or Canon 5D and other Canon full frame or APS-C cameras, BM or a Sony Nex / A7 with AF Canon adapter.
- Aspherical Element and f2.8 aperature - Minimum focus distance of 11.81"
- Circular 7-blade Aperture
-Total Weight including 37mm filter : 0.5 lbs.
-CANON EF MOUNT.
*This is an electronic only lens, your camera MUST be able to drive the motors electronically for both Focus and IRIS adjustments. This includes most Canon cameras, RED cameras with DSMC Canon mounts, and various other cameras with electronic EF mounts.