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Nikon G Lens to L-mount Speed Booster ULTRA 0.71x

Key Features

Features and Benefits
  
  • Nikon F-mount lens to specific Blackmagic Design L-mount cameras/camcorders ;
  • This product is designed for the specific Blackmagic camera's Windowed Sensor Mode/ APS-C Crop (eg. 4K DCI / Super35 mode of Blackmagic Cinema Camera 6K Pro (BMCC6K Pro) L-mount and Blackmagic PYXIS 6K L-mount, etc);
  • Compatible with both Nikkor G lens &  F lens (include non-AI & AI lens mounts) 
  • Industry's best aperture clickless ring covers an 8-stop range marking, clearly indicating the actual number off-stops. No more guesswork. (Patent granted) ;
  • Parented 5-element/4-group optical design incorporating ultra-high index tantalum-based optical glass by Caldwell Photographic in the USA ;
  • Increase maximum aperture by 1 stop;
  • Increase MTF;
  • Makes lens 0.71x wider;
  • Rubber gasket protects the L-mount connection from dust and moisture ;
  • Satin Surface Finish;
  • Aluminum Alloy and Brass Construction with Chromium Plating;
  • Detachable Arca-Type tripod foot compatible with Arca Swiss, Markins, and Photo Clam ball heads(clamp directly or attach to quick-release plate by a 1/4"-20 screw);

 

Limitations and unsupported List
  
  • The rear element of the lens cannot protrude from the flange more than 10.5mm.
  • This product is designed for the specific Blackmagic camera's Windowed Sensor Mode/ APS-C Crop mode(eg. 4K DCI / Super35 mode of BMCC6K Pro & Blackmagic PYXIS 6K L-mount, etc).  This Speed Booster is UNABLE to attach to Panasonic, Leica and Sigma L-mount cameras due to the interference between the Speed Booster's optic and the shuttle mask of the camera.  
  • Nikkor DX lenses and third-party lenses designed for APS-C format DO NOT WORK when used in conjunction with Speed Booster® on the APS-C Crop / Super35 mode due to the limitation of image coverage.
  • Nikkor 2.1cm f/4
  • Nikkor AI-S 20mm f/2.8
  • Nikkor E series lens, the diaphragm blades are not operated by mechanical linkage levers, such as Nikkor 105mm f/1.4E, Nikkor AF-S 70-200mm f/2.8E FL ED VR, Nikkor AF-S 16-80mm f/2.8-4E ED DX VR, and Nikkor AF-S 24-70mm f/2.8E ED VR, Nikkor AF-S 600mm f/4E FL ED VR and PC-E 19mm, 24mm, 45mm, 85mm T/S Lens, etc.
  • This adapter is manual aperture control. It does NOT support electronic aperture control, AF and image stabilization.

 

Compatibility List of Lens
  • Nikkor F-mount lens

include Nikkor G series, AF-D, AI-P, AIS, AI and non-AI lens only.

 


 



Description

Metabones® Speed Booster® ULTRA 0.71x for L-Mount and RF-mount cameras

Always Enhance and Never Degrade the Performance of the Attached Master Lens.

Sharper corners, less distortion, reduced vignetting 

New optical design:  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 vignetting.

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.  (More information can be found in the press release here)

New professional Mount-Rod Support Kit is also available (not included), which is compatible with all Metabones adapters with tripod foot. 

 

Crop Factor after using Speed Booster ULTRA 0.71x 

 

Remark: Your PayPal receipt is your order confirmation. There is no separate email confirmation until shipment takes place.

Disclaimer: we are NOT licensed, approved or endorsed by Nikon, Panasonic, Sigma and Leica.

 

 


Why Metabones®?

Since its inception, Metabones has been designing and manufacturing lens adapters recognized among professionals and enthusiasts as leaders in design and workmanship.

Contrary to the popular trend of other factories using an aluminum ring painted black on the camera-body-side, we instead take no short-cut but use precision-machined brass with chromium plating on both the camera-body and the lens sides of our adapters, in order to ensure smooth mounting, great appearance, and durability. The lens side of the adapter features a strong leaf-spring structure, strengthening the adapter-lens connection and ensuring tightness of the lens in order to reduce wear and prevent focus errors and optical alignment issues from appearing.

Metabones uses matte-black treatment to keep internal reflection to a minimum in order to maintain the maximum optical quality possible with the lens.

All Metabones Adapters follow this tradition of uncompromising precision, robust build quality and outstanding finish. Our new Smart AdapterTM series of products add industry-leading electronic interfacing technology from Canada, with true electronic control of the lens' aperture directly from the camera body.

Features

Our Smart AdapterTM  series adapters have the following additional features