Metabones Contarex to Xmount Speed Booster 0.71x (Black Matt)

The Metabones Contarex to Fuji X Speed Booster 0.71x (Black Matt) allows Contarex lenses to be used on Fuji X-mount cameras, increasing the maximum aperture by 1 stop and delivering a wider 0.71x field of view. Featuring precision optics by Caldwell Photographic, a built-in aperture control ring, and a detachable Arca-compatible tripod foot, this Speed Booster enhances image quality and versatility for mirrorless photography.

The Metabones Contarex to Fuji X Speed Booster 0.71x (Black Matt) is designed for photographers who want to use legendary Contarex lenses on Fuji X-mount mirrorless cameras. This Speed Booster reduces the crop factor of APS-C Fuji cameras, effectively making lenses 0.71x wider while increasing the maximum aperture by 1 stop, improving light-gathering ability and enabling shallower depth of field.

The advanced optical design, created by Caldwell Photographic in the USA (patent granted), enhances MTF for sharper images with reduced distortion and vignetting. The adapter features a precision-machined brass body on both lens and camera sides with chromium plating, a satin surface finish for durability, and a precise fit that eliminates play or wobble when mounted.

The built-in aperture control ring allows seamless adjustment from the camera body, and EXIF data for lens identification, focal length, and aperture is transmitted to the camera. A detachable tripod foot is compatible with Arca Swiss, Markins, and Photo Clam ball heads, offering stability during shooting. This Speed Booster is engineered for uncompromising optical performance and robust build quality, making it a reliable tool for professional photographers and enthusiasts alike.

Key Features

• Adapts Contarex lenses to Fuji X-mount cameras
• Increases maximum aperture by 1 stop
• Makes lenses 0.71x wider for a wider field of view
• Improves MTF for sharper image quality
• Advanced 5-element/4-group optics designed by Caldwell Photographic (patent granted)
• Built-in aperture control ring with Smart Adapter integration
• Both lens-side and camera-side made of precision-machined brass with chromium plating
• Satin surface finish, precise fit, and solid connection with no lens play
• True electronic integration for aperture control in P/S/A/M modes
• EXIF data transmission: lens identification, focal length, and aperture
• Detachable tripod foot compatible with Arca Swiss, Markins, Photo Clam ball heads