GDU 24mm Overview
The heart of the GDU 24mm is a Canon 24mm 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 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 24mm Includes a 37mm protective UV filter inset within a a 46mm non-threaded protective ridge. Specs -Super 35mm APS-C coverage in an strong, lightweight and slim design. Perfect for RED cameras with Canon Mount, Canon 7D and other Canon APS-C cameras, Sony Nex / A7 with AF Canon adapter etc. Not for use on Full Frame Canon 5D. -STM stepper focus motor provides quiet and smooth continuous AF or remote MF during video recording on any camera that supports CANON AF. -Iris mechanism uses micro-stepping drive control for quiet smooth adjustments. -Aspheric lens element helps you achieve a high level of image quality from the center to the periphery. -Optimized lens arrangement and coating helps minimize ghosting and flare. -7 Iris blades delivers beautiful, soft backgrounds. -Minimum focusing distance of 0.5 ft./0.16 m; maximum magnification of x0.27. -Total Weight including 37mm filter : 0.4 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 APS-C cameras, RED cameras with DSMC Canon mounts, and various other cameras with electronic EF mounts.