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Metabones Sony A-Mount Lens to Sony E-Mount Camera Speed Booster ULTRA

BH #MESPAEBM2 • MFR #MB_SPA-E-BM2
2 reviews
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Metabones Sony A-Mount Lens to Sony E-Mount Camera Speed Booster ULTRA
Key Features
  • Sony A-Mount Lens to Sony E-Mount Body
  • Ultra-High Index Tantalum-Based Glass
  • Increases Maximum Aperture by 1 f/Stop
  • Increases Angle of View by 0.71x
The Sony A-Mount Lens to Sony E-Mount Camera Speed Booster ULTRA from Metabones improves upon the original Metabones Speed Booster with a 5 element/4 group optical design that incorporates ultra-high refractive index tantalum-based glass for improved sharpness and reduced distortion and vignetting. The Speed Booster ULTRA allows a full frame Sony A-Mount lens to be mounted to an APS-C format E-Mount camera and in doing so, increases the angle of view and increases the maximum aperture by approximately one f/stop. 
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Metabones MB_SPA-E-BM2 Overview

The Sony A-Mount Lens to Sony E-Mount Camera Speed Booster ULTRA from Metabones improves upon the original Metabones Speed Booster with a 5 element/4 group optical design that incorporates ultra-high refractive index tantalum-based glass for improved sharpness and reduced distortion and vignetting. The Speed Booster ULTRA allows a full frame Sony A-Mount lens to be mounted to an APS-C format E-Mount camera and in doing so, increases the angle of view and increases the maximum aperture by approximately one f/stop. 

When a lens intended for full frame sensors or 35mm film is mounted to a camera with an APS-C sized sensor, it transmits a larger area of light than the smaller sensor was built to accept and therefore the effective angle of view of the lens decreases. The Speed Booster condenses light from the lens and projects it onto the APS-C sensor allowing the sensor to utilize all of the lens' light and effectively reduces the crop factor of and APS-C E-Mount camera from 1.5x to 1.07x, producing a full-frame angle of view with an APS-C sensor. A corresponding increase in the maximum aperture of one f/stop makes the lens more effective in low-light situations and able to create a shallow depth of field. 

Metabones Speed Boosters are quality made using precision-machined brass with chromium plating on both the camera body and the lens side of the booster in order to ensure smooth mounting, quality aesthetic, and durability. This adapter has a detachable tripod foot that is compatible with Arca Swiss, Markins, and Photo Clam ball heads.

Although the lens will fit physically, automatic diaphragm (AE metering), or other auto functions are not retained using this speed booster. A built-in aperture control ring enables manual control of aperture from the speed booster. These speed boosters are only fully compatible with mirrorless cameras housing APS-C or smaller image sensors. They will physically fit the Sony full frame mirrorless cameras, but the camera must be set in Crop Mode to fully support the speed booster's functions.

Allows a full frame Sony A-Mount lens to be mounted to an E-mount APS-C format camera and in doing so, increases the angle of view and increases the maximum aperture by one f/stop.
The Speed Booster ULTRA design incorporates ultra-high index tantalum-based optical glass for enhanced optical performance with improved corner sharpness and reduced distortion and vignetting. This glass technology and optical design perform extremely well with professional-grade f/2.8 zoom lenses and high-speed fixed focal length lenses such as a 50mm f/1.2 which will perform as a 35.5mm f/0.9 lens with high contrast and resolution from the center to the edges of the image.
Precise fit and solid connection - lens has no play, gap or wiggling when mounted on speed booster and no adjustments are required to fit your lens. Both the camera-side and the lens-side of the speed booster are made of brass which is precision-machined and chrome-plated.
The Speed Booster uses matte-black treatment to keep internal reflection to a minimum in order to maintain the maximum optical quality possible with the lens. The exterior features a black satin surface finish.
A built-in aperture control ring enables manual control of aperture from the speed booster.
Designed to reach infinity focus while maintaining the correct registration distance required to maintain optical quality of CRC lenses or lenses with floating elements.
The speed booster features a detachable tripod foot which is compatible with Arca Swiss, Markins, Photo Clam ball heads.
Although the lens will fit physically, automatic diaphragm (AE metering), or other auto functions are not retained using this speed booster.

Metabones MB_SPA-E-BM2Specs

Camera Mount
Sony E (APS-C)
Lens Mount
Sony/Minolta A
Electronic Communication
No
Material
Brass
Weight
6.8 oz / 193 g
Packaging Info
Package Weight
0.785 lb
Box Dimensions (LxWxH)
4.4 x 4.3 x 2.4"

Metabones MB_SPA-E-BM2 Reviews

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Does this adapter can be use on Sony a77 and Sony ...

Does this adapter can be use on Sony a77 and Sony a99 ii for Sigma 800mm F-mount with AF? If not what adapter do you suggest to be able to use this camera with AF?
Asked by: Abraham
No, the Metabones Nikon F-Mount Lens to Sony E-Mount Camera Speed Booster ULTRA will not work with the Sony A99 or the A77: https://bhpho.to/2dRc0U1
Answered by: Leonard E
Date published: 2019-07-23

Will IBIS (in body image stabilization) work with ...

Will IBIS (in body image stabilization) work with this adapter?
Asked by: Kelvin
Yes you can use the in body stabilizer with this adapter.
Answered by: Dan W
Date published: 2019-08-29

question

I have some late 80's early 90's Minolta AF A-mount lenses , like the 100mm 2.8 / 50mm 1.4 / and 500mm 8. Would these autofocus on the sony 7rii in Video Mode? Thanks
Asked by: Anonymous
A to E Mount adapters can give you autofocus. https://bhpho.to/2qaXWtu
Answered by: Andrea O.
Date published: 2018-08-25

question

Does this adapter support autofocus on either SONY/Minolta's SSM af lenses or on the older SONY/Minolta screw drive af lenses?
Asked by: Anonymous
Autofocus is not retained when using this adapter.
Answered by: Heather S.
Date published: 2019-08-20

question

My current camera is a Sony a7riii. I have a-mount glass 2.8 70-200 G & 85 1.4 zeiss... will this work seamlessly or do I have to completely switch to e-mount
Asked by: Alfonza
Yes, you may use the Metabones Sony A-Mount Lens to Sony E-Mount Camera Speed Booster ULTRA with the Sony 70-200mm f/2.8 G SSM II Lens and the Sony Planar T* 85mm f/1.4 ZA Lens. Do note that this is a speed booster, with a 0.71x conversion and will make your lens one (1) f-stop brighter, so your 70-200mm f/2.8 lens will become the equivalent of a 49.7-142mm f/2 lens, and the 85mm f/1.4 will become the equivalent of a 60.4mm f/1 lens. When using a speedbooster on a full-frame camera such as the Sony Alpha a7R III Mirrorless Digital Camera, it is best to use the camera in APS-C crop mode as the speedbooster reduces the lens' imaging circle, so it will not cover the entire sensor.If you are looking for an adapter that will have no effect to the lens, allowing the lens to keep the same focal length and aperture (and imaging circle) for use of the full sensor, I would instead recommend the Sony A-Mount to E-Mount Lens Adapter (Black), B&H # SOLAEA3, for your usage needs. In either case, both adapters listed above allow you to use your Sony A-mount lenses on the Sony E-mount lens mount.
Answered by: Manzell L.
Date published: 2022-08-26

is it possible to use sigma 18-35 f1.8 sony lens ...

is it possible to use sigma 18-35 f1.8 sony lens to a7riii with this speed booster?
Asked by: Soe
Yes, if you have an A mount lens, then it will work.
Answered by: Rob
Date published: 2020-02-21

question

May I use this booster on A7 MarkII to mount Sony/Minolta Alpha lenses?
Asked by: Basri
The Sony A7 II uses Sony E-Mount lenses. The Metabones Sony A-Mount Lens to Sony E-Mount Camera Speed Booster ULTRA (B&H # MESPAEBM2 MFR # MB_SPA-E-BM2) will allow you to use Sony A-Mount lenses with the E-Mount A7 II.
Answered by: Alex N.
Date published: 2018-08-25
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