MB_SPEF-E-BT2 NEX>EF - Metabones

Speed Booster ULTRA series fa la differenza

Aberrazioni cromatiche e geometriche migliorate , angoli più nitidi , una minore distorsione, vignettatura ridotta

design ottico: avanzato a 5 elementi / design a 4 gruppi incorporando un vetro ottico basato in lega di tantalio per ottenere prestazioni ottiche straordinarie

Come l'iniziale Metabones SpeedBooster annunciato nel mese di gennaio 2013, la Serie Speed Booster ULTRA ha un ingrandimento di 0.71x, quindi riduce efficacemente il fattore di crop di camere mirrorless con sensori di dimensioni Dx, APSC e super35, da 1,5 a 1.07x.
Tuttavia, il design ULTRA è prodotto con materiali straordinari de innovativi al limite estremo della tecnologia sulla produzione delle lenti

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.

Compatibility:

EF lenses
Image stabilization (IS) lenses
Electronic manual focusing (e.g. EF 85/1.2L II and discontinued EF 50/1.0L)
EXIF (focal length, aperture, zoom range)
P, A, S, M exposure modes
Autofocus (see autofocus support section below)
Distance and zoom display on VG and FS series camcorders
Auto magnify
Contax N mount lenses modified to Canon EF by Conurus
Contax 645 NAM-1 adapter modified to Canon EF by Conurus
Sigma, Tamron and Tokina lenses in Canon EF mount

List of lenses with autofocus support on Speed Booster?

Canon EF primes
EF 14/2.8L II USM
EF 24/1.4L II USM
EF 24/2.8 IS USM
EF 35/1.4L USM (Ver.19)
EF 50/1.2L USM
EF 85/1.2L II USM
EF 85/1.8 USM (Ver.18)
EF 100/2.8 USM macro (Ver.17)
EF 135/2L USM (Ver.17)
EF 200/2.8L II USM (Ver.17)
EF 300/2.8L IS USM
Extender EF 1.4x III
Extender EF 2x (mark I)
Canon EF zooms
EF 8-15/4L USM fisheye
EF 17-40/4L USM
EF 20-35/2.8L (Ver.18)
EF 22-55/4-5.6 USM
EF 24-70/2.8L USM II
EF 28-80/3.5-5.6 II (Ver.18)
EF 28-90/4-5.6 III
EF 35-350/3.5-5.6L (Ver.18)
EF 70-200/2.8L IS USM II
EF 70-200/4L USM
EF 70-200/4L IS USM
EF 70-300/4-5.6L IS USM
EF 70-300/4-5.6 IS USM
EF 100-300/5.6 (non-L, not USM, push-pull zoom) (Ver.18)
EF 100-400/4.5-5.6L IS USM
Tamron
SP 24-70/2.8 Di VC USD A007 (Ver.15)
SP 70-200/2.8 Di VC USD (Ver.17)
Tokina (full frame)
28-80/3.5-5.6 (Ver.18)
Autofocus is DISABLED for the following lenses

Image stabilization (if supported by lens), auto aperture and EXIF work. Autofocus is supported only for those lenses marked with an asterisk (*), on NEX-5R/6, and with adapter firmware version 18 or above.

Canon EF primes

EF 14/2.8L (mark I)

EF 24/1.4L USM (mark I)

EF 24/2.8 (old version, non-IS)

TS-E 24/3.5L

TS-E 45/2.8

EF 50/1.4 USM

EF 50/1.8 II

MP-E 65/2.8 macro

EF 85/1.2L (mark I)

EF 400/5.6L USM
Canon EF zooms

EF 24-70/2.8L (mark I)

EF 24-105/4L IS USM*

EF 28-70/3.5-4.5 II

EF 35-80/4-5.6
Contax N modified by Conurus

Vario-Sonnar 17-35/2.8

Vario-Sonnar 24-85/3.5-4.5

Vario-Sonnar 28-80/3.5-5.6

Planar 50/1.4

Planar 85/1.4

Makro-Sonnar 100/2.8 (Ver.21)

NAM-1 adapter
Sigma (full frame)

24-70/2.8 EX HSM

24-70/2.8 EX DG HSM

50/1.4 DG HSM (Ver.17)*

50/2.8 DG Macro

70-200/2.8 EX DG Macro HSM

100-300/4
Tokina

AT-X PRO 28-70/2.8
Zeiss ZE

ZE Distagon 15/2.8

ZE Distagon 21/2.8

ZE Distagon 35/2

ZE Makro-Planar 50/2

ZE Makro-Planar 100/2