The Metabones Contax Yashica CY to L-mount CINE Speed Booster ULTRA 0.71x – With Tripod Foot advanced 5-element/4-group optical design incorporating ultra-high index tantalum-based optical glass to achieve extraordinary optical performance with improved corner sharpness, distortion and reduced.

Like the revolutionary original Metabones Speed Booster announced in January 2013, the Speed Booster ULTRA has a magnification of 0.71x, and so it effectively reduces the crop factor of mirrorless cameras with DX-sized sensors and Super35 camcorder, such as Sony E-mount, Fuji X-mount cameras Sony FS7 MARKII, from 1.5x to 1.07x. However, the new ULTRA design makes very effective use of exotic materials at the furthest limit of glassmaking technology, and as a result is well corrected for use with virtually all full-frame SLR/Prime lenses regardless of exit pupil distance.

Key Features of the Metabones Contax Yashica CY to L-mount CINE Speed Booster ULTRA 0.71x – With Tripod Foot

• Contax Yashica CY-mount lens to L-mount cameras/camcorders
• This product is designed for the APS-C Crop mode of the specific cameras (eg. 4K 60P Crop mode of Panasonic S1H, S5 and S5K, etc)
• Positive-lock CY lens mount, the robust cine-style positive locking mechanism to ensure that no play when attaching the vintage CY lenses
• Increase maximum aperture by 1 stop
• Increase MTF
• Makes lens 0.71x wider
• The advanced 5-element/4-group optical design incorporating ultra-high index tantalum-based optical glass by Caldwell Photographic in the USA (patent granted)
• Rubber gasket protects the L-mount connection from dust and moisture
• Aluminum Alloy and Brass Construction with Chromium Plating

• MPN – MB-230
• GTIN – 4897050182956