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Review Summary
Accidents happen. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failures, and more.
If we can’t fix it, we’ll replace it at no additional cost.
Protect your product from drops, spills, and more.
Enjoy your gear without fear. We have you covered!
When regular use of your product over time results in mechanical or electrical failure.
We will never charge you a deductible after the purchase of a plan.
Our claims process is simple & easy and our customer service team is happy to help.
Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for international or U.S. territories purchases. Plans on open box items do not cover pre-existing damage.
Adorama Protect plans are available for ABS clients. If you have any questions or require assistanse, please call 800-223-2500
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Black Satin Exterior
Black Matte Interior
0.71x
1.07x
f/0.90 (with f/1.2 Lens Attached)
< 1%
5/4
4.2 mm
Canon RF
DX, APS-C
Leica R
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.
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.
Robust Removable Type with Arca Swiss Compatibility
1.06 x 2.99 x 2.83" (27 x 76 x 72mm) for Canon EF version
6.80 oz (193g)
4897050182949
Models | SKU: MBSPLREFRBM1 MFR: MB_SPLR-EFR-BM1 $449.00 In Stock | SKU: MBSPPLEFRBT2 MFR: MB_SPPL-EFR-BT2 $719.00 In Stock Usually ships within 2-5 Days | $429.00 In Stock |
---|---|---|---|
Features | SpeedBooster / Baveyes | SpeedBooster / Baveyes | Full AF Adapter |
Style | - | Standard | With ND Filter |
Camera Fitting (Male) | Canon RF | Canon RF | Canon RF |
Lens Fitting (Female) | Leica R | PL Mount | Canon EOS |
Sharper corners, Less distortion, Reduced vignetting
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.
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.
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.
Both camera-side and lens-side of the adapter are made of brass, precision-machined and plated with chromium.
Satin surface finish - just like your OEM lens and camera mounts.
Precise fit and solid connection - lens has no play, gap or wiggling when mounted on adapter and no adjustments are required to fit your lens.
Designed to reach infinity focus while maintaining the correct registration distance required to maintain optical quality of CRC lenses or lenses with floating elements.
True electronic integration of aperture diaphragm - let camera automatically choose aperture in P or S exposure modes, or dial in yourself on the camera body in A or M modes.
XIF data such as lens identification, focal length and aperture. 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
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
The rear element of the lens cannot protrude from the flange more than 10.5mm. The rear element of the lens cannot protrude from the flange more than 10.5mm.
The following lenses require modification in order to fit on the Speed Booster.
Super-Elmar-R 15mm
Elmarit R 28/2.8
Elmarit R 35/2.8
Summicron R 50/2
Super telephotos such as the Telyt 560/5.6 may vignette at the corners.