Metabones CINE Speed Booster Ultra 0.71x - Canon EF to Sony E Mount T
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Your camera ships with 6 months of coverage included. Extend it if you want professional photographer peace of mind.
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View warranty terms and conditionsThe Metabones CINE Speed Booster Ultra 0.71x is a high-end lens adapter that mounts Canon EF lenses on mirrorless cameras with Sony E mount, specifically designed for video and cinema use. Its advanced optical design of 5 elements in 4 groups, incorporating high-index tantalum optical glass, delivers exceptional performance with improved corner sharpness, reduced distortion, and minimized vignetting. With a magnification of 0.71x, it reduces the crop factor of cameras with DX sensors (such as Sony E) from 1.5x to approximately 1.07x, allowing you to take full advantage of the lens's angle of view.
This adapter, released in 2017 and weighing 242 grams, is manufactured with high-quality materials and features a robust mounting mechanism. As a second-hand product, it has been inspected and is covered by Camera Market's warranty (6, 12, or 24 months), giving you peace of mind in your purchase. It is the ideal tool for videographers and filmmakers seeking a versatile, high-quality solution for their Sony E cameras.
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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, 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.
- Standard 6-month warranty
- EF Front Body Cap
- Original Packaging
- Rear Lens Cap - FE/E Fit
Which cameras are compatible with this adapter?
This adapter is designed to mount Canon EF lenses on mirrorless cameras with Sony E mount. It is compatible with Sony DX (APS-C) format cameras, such as the A6000, A6300, A6500 series, etc. For a full compatibility list, please refer to the manufacturer's specifications.
What is the crop factor and how does this adapter affect it?
The crop factor is the ratio between the camera sensor size and the 35mm film format. Cameras with APS-C sensors have a crop factor of 1.5x, which reduces the angle of view. This adapter, with its 0.71x magnification, reduces that factor to approximately 1.07x, allowing you to achieve a wider field of view and a larger angle, similar to that of a full-frame camera.
Does this adapter maintain the image quality of the lens?
Yes, the adapter is designed with advanced optics of 5 elements in 4 groups, including high-index tantalum glass. This improves corner sharpness, reduces distortion and vignetting, and maintains exceptional optical performance. However, the final quality also depends on the lens you mount.
What warranty does this second-hand product include?
This adapter, being sold by Camera Market, has passed a technical inspection and is covered by our warranty. You can choose between 6, 12, or 24 months of warranty, providing you with additional protection and peace of mind in your purchase.
Full condition scale
Each unit is inspected at 28 points and graded honestly. Here's how we translate each level so you know what to expect:
Barely any signs of use. Almost flawless aesthetics and perfect operation.
Light marks from normal use. Optically clean and fully functional.
Visible signs of use (scuffs, marks, brassing). Works perfectly.
Not guaranteed for use: sold for parts or repair.
Why buy used?
Depreciation is already absorbed: the same gear for much less than new.
Many classics and discontinued gems only exist today on the used market.
28-point inspection and 6-month warranty included on every unit.
Extending the life of a camera avoids manufacturing and transporting a new one.











