Metabones Speed Booster Ultra 0.71x Cine Adapter for Contax/Yashica-Mount Lens to Micro Four Thirds-Mount Camera


The Speed Booster Ultra 0.71x Cine Adapter from Metabones allows a Contax/Yashica-mount lens to be used a Micro Four Thirds-mount camera. The adapter's optics maximize 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. This adapter condenses the light from a lens designed for 35mm film cameras and projects it onto the Micro Four Thirds-size sensor. This allows the camera's sensor to utilize 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.

This adapter is constructed from aluminum for durability while minimizing 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 color fidelity. The detachable tripod foot is Arca-type compatible and features 1/4"-20 threads

NOTE: Not compatible with the Contax 15mm f/3.5 Distagon T* lens.

Key Features
Allows a full-frame Contax/Yashica-mount lens to be used with a Micro Four Thirds-mount camera
Maximizes 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
Aluminum components for weight reduction
Brass mounting rings prevent wear and tear
In the Box
Metabones Speed Booster Ultra 0.71x Cine Adapter for Contax/Yashica-Mount Lens to Micro Four Thirds-Mount Camera
Rear Cap
Front Cap
Limited 1-Year Warranty



Adapter
Camera Mount: Micro Four Thirds
Lens Mount: Contax/Yashica
Magnification: 0.71x
Optical Design: 5 Elements in 4 Groups
Electronic Communication: No
Display: No
Physical
Material: Aluminum, Brass
Tripod Mounting Thread: 1/4"-20 Female
Packaging Info
Package Weight: 0.88 lb
Box Dimensions: 4.9 x 4.5 x 2.4"