Metabones Canon FD/FL Lens to RF-mount Speed Booster ULTRA 0.71x - With Tripod Foot

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Metabones Canon FD/FL Lens to RF-mount Speed Booster ULTRA 0.71x - With Tripod Foot

Metabones Canon FD/FL Lens to RF-mount Speed Booster ULTRA 0.71x - With Tripod Foot

The Metabones Canon FD/FL Lens to RF-mount Speed Booster ULTRA 0.71x - With Tripod Foot 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.

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 full-frame 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.

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

 

 Color Black Satin Exterior
Black Matte Interior
Magnification 0.71x
Crop Factor with DX format Camera 1.07x
Maximum Output Aperture f/0.90 (with f/1.2 Lens Attached)
Rectilinear Distortion < 1%
Lens Elements/Groups 5/4
Length Reduction 4.2 mm
Camera Mount Canon RF
Image Format DX, APS-C
Lens Mounts Canon FD/FL
Lens Compatibility Any full-frame lens with the appropriate mount can be used. DX lenses can be mounted but will result in severe vignetting in most cases. Canon EF-S Z lenses are not supported.
Special Features Long-throw clickless aperture ring on Nikon F/G version; AF/IS support and in-camera aperture selection with Canon EF to Sony E version.
Tripod Mount Robust Removable Type with Arca Swiss Compatibility
Dimensions 1.06 x 2.99 x 2.83" (27 x 76 x 72mm) for Canon EF version
Weight 6.80 oz (193g)
  • Canon FD and FL mount lens to Canon RF-mount cameras
  • Increase maximum aperture by 1 stop
  • Increase MTF
  • Makes lens 0.71x wider
  • Advanced 5-element/4-group optical design incorporating ultra-high index tantalum-based optical glass by Caldwell Photographic in the USA (patent granted)
  • Satin Surface Finish
  • Aluminum Alloy and Brass Construction with Chromium Plating
  • Rubber gasket protects the RF-mount connection from dust and moisture
  • Detachable Arca-Type tripod foot compatible with Arca Swiss, Markins, and Photo Clam ball heads
  • The product is designed for the APS-C format camera (eg. Canon C70 and RED Komodo, etc.) or using with the APS-Crop mode of EOS R3, R5, R6, EOS R and EOS RP.