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

BH #MESPALPAEBM2 • MFR #MB_SPALPA-E-BM2
Metabones
Metabones ALPA Lens to Sony E-Mount Camera Speed Booster ULTRA
Key Features
  • ALPA 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 ALPA 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 ALPA 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_SPALPA-E-BM2 Overview

The ALPA 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 ALPA 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.  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 ALPA 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.
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_SPALPA-E-BM2 Specs

Adapter
Camera MountSony E (APS-C)
Lens MountAlpa
Nikon Lens CompatibilityG-Type Lens
Magnification0.71x
Optical Design5 Elements in 4 Groups
Physical
Weight6.8 oz / 193 g
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YOUR RECENTLY VIEWED ITEMS

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: Lenny
Date published: 2019-07-23

Can this adapter be use with Sony a7r ii ...

Can this adapter be use with Sony a7r ii Full-frame with Sigma 500mm Nikon F mount?
Asked by: Abraham
No, the Metabones Nikon F-Mount Lens to Sony E-Mount Camera Speed Booster ULTRA, is an adapter for using E mount lenses on "cropped sensor" camera bodies like the Sony "NEX", or the Alpha A5000, and A6000 series cameras.
Answered by: Lenny
Date published: 2019-07-26

question

Will this adapter work with the auto focus function on my Nikon f mount 14-24mm to my Sony a7r full frame camera?
Asked by: Jillian G.
Sorry, no. This adapter has no electronic connection between the lens and the camera therefore no auto focus or auto exposure is possible.
Answered by: Dennis A L.
Date published: 2018-08-25

question

Can i use this adapter for sony nex ea50uh?
Asked by: Erion H.
Yes you can. The Sony NEX-EA50 is an E-Mount Camera.
Answered by: Joseph
Date published: 2019-07-29

question

Will this work for using a canon 24-105mm to a sony a7sii?
Asked by: Derek D.
This will be compatible.
Answered by: James B.
Date published: 2018-08-27

question

Does this reduce the focal length of the lens?
Asked by: Anonymous
Please take into account the crop factor of the camera also! For a camera with a 2x crop factor such as the GH5, a 50mm Canon FD lens would have the focal length of 100mm, you THEN multiply that by the adapter's magnification factor (in this case 0.71x), to get 71mm.
Answered by: David
Date published: 2019-03-31

EF-S?

EF-S?
Asked by: Brian
Nope. EF only
Answered by: Mike 'Smitty'
Date published: 2019-05-16

question

Will this work on the upcoming blackmagic cinema camera 4K or is there going to be a new model since the sensor size will be the same as the gh5s
Asked by: Jasper J.
You should be able to use the lens in manual. You results may vary.
Answered by: Reuben
Date published: 2019-08-02
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