The Metabones Contax Yashica CY to X-mount Speed Booster ULTRA 0.71x CINE (MB_SPCY-X-BM3) from Metabones allows a Contax/Yashica-mount lens to be used a FUJIFILM X-mount camera. The adapter's optics maximise the connected lens's apparent angle of view by a factor of 0.71x while providing a one-stop increase for the camera over the lens's aperture range. The Metabones Contax Yashica CY to X-mount Speed Booster ULTRA 0.71x CINE (MB_SPCY-X-BM3) condenses the light from a lens designed for 35mm film cameras and projects it onto the FUJIFILM X-size sensor. This allows the camera's sensor to utilise more of the light gathered by a connected lens, which effectively reduces the crop factor while making available to the sensor an additional one f/stop of light for each of the lens's f/stop settings.

The Metabones Contax Yashica CY to X-mount Speed Booster ULTRA 0.71x CINE (MB_SPCY-X-BM3) is constructed from aluminium for durability while minimising weight, and its mounting rings are made with brass to further prevent wear and tear. The internal optics feature five lens elements in four groups and are designed to provide optical clarity as well as colour fidelity. The detachable tripod foot is Arca-type compatible and features 1/4"-20 threads

Key Features

• Allows a full-frame Contax/Yashica-mount lens to be used with a FUJIFILM X-mount camera

• Maximises apparent angle of view of combined camera and lens

• Positive lens locking ring

• Provides a 1-stop increase for the camera over the lens's aperture range

• Five lens elements in four groups for optical clarity and color fidelity

• Detachable Arca-type compatible tripod foot with 1/4"-20 threads

• Aluminium components for weight reduction

• Brass mounting rings prevent wear and tear

• Contax/Yashica-Mount Lens to FUJIFILM X

• Ultra-High Index Tantalum-Based Glass

• 1-Stop Increase in Lens Apertures

• 0.71x Angle of View Compensation

• Positive-Lock Contax/Yashica Lens Mount

• 5 Optical Elements in 4 Groups

• Brass Mounting Rings

• Removable Arca-Type Tripod Foot