Fotodiox Pro Lens Mount Adapter Rollei 6000 (Rolleiflex) Series Lens to Canon EOS DSLR Camera w/ Built-in Iris SKU: R6K-EF-P (R6k-EOS-Pro) This Fotodiox lens mount adapter is made with high standard precision. The leaf spring design in the adapter holds the lens tight to the camera body ensuring there is no play between the camera and the lens. It’s all metal design and polished surface is designed to guarantee smooth mounting and long lasting experiences. This adapter also has a built in iris which allows for some degree of control over the light coming in from the lens. Rollei 6000 (Rolleiflex) Series lenses use an electronic aperture which will not function with an adapter, the built in iris enables the lens to still be used with some functionality. This adapter allows all Rollei 6000 (Rolleiflex) Series lenses to fit on a Canon EOS Digital camera body. Fotodiox Pro Lens Mount Adapter Features Premium Grade Fotodiox "Pro" AdapterSmooth surface for effortless mountInfinity Focus AllowedBuilt-in Aperture Controller24 Month Manufacturer Warranty Although the lens will fit physically, automatic diaphragm, auto-focusing, or any other functions will not operate correctly while using this adapter. In this case "stop-down mode" will need to be used when metering since the lens does not have the ability to have its aperture controlled by the camera body. You can shoot with manual mode or aperture priority mode. Compatible Cameras Canon 1d/1ds, Mark II, III, IV, X, C, 5D, 5D Mark II/III, 7D, 10D, 20D, 30D, 40D, 50D, 60D, 60DaRebel xt, xti, xs, xsi, t1i, T2i, T3, T3i, T4, 300D, 350D, 400D, 450D, 500D, 550D, 1000D Technical data Adapter Type Rollei 6000 (Rolleiflex) Series Lenses to Canon EOS Digital body w/ Built-in IrisInfinity Focus YesMaterial of Construction Brass with Stainless Steel FinishingAE priority YesMetering Stop-down meteringTTL flash metering YesManufacture Fotodiox Inc.Warranty 24 Months