Canon EOS EF Mount Lens To Sony NEX E Camera Focal Reducer Speed Booster Adapter

In common lens adapters, cropping effect occurs in all APS-C digital cameras with 1.5x magnification. This adapter reduces focal length to 0.72x , to adjust the image size to near 1:1 so that the focal length of the image is close to actual focal length of the lens, e.g. 50mm x 1.5 x 0.72 = 54mm. For using Sony NEX (E) mount APS-C digital cameras with all Canon EOS (EF) mount lenses. It helps to increase the maximum aperture to 1 stop, and you can use it faster by 1 stop. Blue spot will occur if lens is shot to sunlight or lamp directly. For Canon EF lens, e.g. EF 50mm F/1.8 II, only default aperture can be used, i.e. largest aperture. Vignetting may occur in EF-S lenses. Features: High quality anodised alloy construction Precision machined surfaces Allows focus infinity. Switching camera to "Shooting without lens" mode is essential. Manual Focus NO Aperture adjustment Auto Exposure = YES (Use your camera in aperture priority (A) mode) Package Included: 1 x EOS-NEX adapter 1 x Front & Rear Caps