Metabones SpeedBooster 0.71x (Nikon G to FujiX)

Overview

New optical design: advanced 5-element/4-group optical design incorporating ultra-high index tanatalum-based optical glass to achieve extraordinary optical performance with improved corner sharpness, distortion and reduced vignetting.

• Industry's best aperture ring covers a 8-stop range markings, clearly indicating actual number of f-stops. No more guesswork! (Patent pending).
• Compatible with both Nikkor G lens & F lens (include non-AI & AI lens mounts).
• Advanced 5-element/4-group optical design incorporating ultra-high index tanatalum-based optical glass by Caldwell Photographic in the USA (patent pending).
• Increase maximum aperture by 1 stop.
• Increase MTF.
• Makes lens 0.71x wider.
• The tripod foot is detachable and compatible with Arca Swiss, Markins, Photo Clam ball heads.

Tips: Before mounting your lens to the adaptor, please make sure that the f-stop of aperture ring on the adaptor is turned to "7" (i.e. mounting your lens to the adaptor while only the aperture ring in the adaptor is full closed.).

Remark: This mount is manual aperture control. It does NOT support electronic aperture control.

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, such as Sony E-mount and Fuji X-Mount cameras, 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 fullframe SLR lenses regardless of exit pupil distance. Thus, the Speed Booster ULTRA performs extremely well with professional-grade f/2.8 zoom lenses such as the 24-70mm f/2.8 and 70-200mm f/2.8 zooms by Canon and Nikon to produce 17-50mm f/2.0 and 50-142mm f/2.0 high-speed zooms, respectively. Similarly, high-speed fixed focal length lenses such as a 50mm f/1.2 will be transformed into a 35.5mm f/0.9 lens with excellent contrast and resolution from the center all the way to the edges of the image.

Key Features

• Increase maximum aperture by 1 stop
• Increase MTF
• Makes lens 0.71x wide
• Tripod foot is detachable & compatible with Arca Swiss, Markins, Photo camball heads
• Both camera-side & lens-side of the adapter are made of brass, precision-machined & plated
• Satin surface finish
• Just like your OEM lens & camera mounts

In The Box

• Metabones Nikon G to Fuji X Speed Booster ULTRA
• Front Cap
• Rear Cap
• Detachable Tripod Foot
• Click Ball
• Spring