The lens adapter allows a full frame Leica R-mount lens to be mounted to an APS-C format E-Mount camera and in doing so, increases the angle of view and increases the maximum aperture by approximately one f/stop.
Focal reducer/Speed Booster adapter.
Supports Focusing to Infinity.
Increases the angle of view by 0.716
Increases maximum aperture by 1 stop.
4 lens elements in 4 groups including 1 extra-low dispersion element, that incorporates ultra-high refractive index tantalum-based glass for improved sharpness and reduced distortion and vignetting.
Adapter caps are included to protect the focusing element when not in use.
Brass and aluminum construction with stainless-steel lens mounting ring for durability.
Camera compatibility: Sony Alpha α7, α7r, α7s, α7II, Sony NEX-3, NEX-5, NEX-C3, NEX-5N, NEX-7, NEX-F3, NEX-5R, NEX-6, NEX-VG10, NEX-VG20, NEX-VG30, NEX-VG900, NEX-FS100, NEX-FS700, NEX-EA50, etc. All Sony NEX E-mount cameras.
Lens compatibility: all Leica R-Mount Lenses.
Automatic diaphragm, auto-focusing, and other functions will not operate correctly while using this adapter as it is not electronic.
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.
Material Brass, Aluminum, Optical Glass
Dimensions 4H x 6Dia. cm
Package included 1 x Lens Adapter, 1 x Front Lens Cap, 1 x Rear Lens Cap