Based on the venerable Leica 70-180mm f/2.8. The all new housing designed by Duclos Lenses was done so with careful consideration for professional cinematographers and the motion picture industry. The body is machined from aircraft grade aluminum alloy, anodized black for a lightweight, durable finish. A precision ground stainless steel Arri PL or Canon EF mount allows the Duclos 70-180mm to be natively mounted to a wide variety of cinema cameras including imminent 35mm full frame and Vista Vision systems. Integrated 32-pitch (0.8 mod) zoom, focus, and iris gears and a threaded 3/8-16 lens support, and an 80mm front diameter allow for seamless operation with industry standard accessories.