DU Speed Booster

Key Features

Features:

Industry’s best aperture ring covers a 8-stop range, clearly indicating actual number of f-stops. No more guesswork! (Patent granted).
Compatible to both Nikkor G lens & F lens (include non-AI & AI lens mounts).
Increase maximum aperture by 1 stop.
Increase MTF.
Makes lens 0.71x wider.
Patented 5-element/4-group optical design incorporating ultra-high index tanatalum-based optical glass by Caldwell Photographic in the USA
The tripod foot is detachable and compatible with Arca Swiss, Markins, Photo Clam ball heads.

Remark: This mount is manual aperture control. It does NOT support electronic aperture control.

Compatibility List of Lens

include Nikkor G series, AF-D, AI-P, AIS, AI and non-AI lens only.

Unsupported List

Nikkor 2.1cm f/4
Nikkor AI-S 20mm f/2.8
Nikkor E series lens, the diaphragm blades are not operated by mechanical linkage levers, such as Nikkor 105mm f/1.4E, Nikkor AF-S 70-200mm f/2.8E FL ED VR, Nikkor AF-S 16-80mm f/2.8-4E ED DX VR, and Nikkor AF-S 24-70mm f/2.8E ED VR, Nikkor AF-S 600mm f/4E FL ED VR and PC-E 24mm, 45mm, 85mm T/S Lens.
This adapter is manual aperture control. It does NOT support electronic aperture control, AF and image stabilization.

Description

Переходники для оптики на камерах Sony. Тест

Features:

Industry’s best aperture ring covers a 8-stop range, clearly indicating actual number of f-stops. No more guesswork! (Patent pending).
Compatible to both Nikkor G lens & F lens (include non-AI & AI lens mounts).
Increase maximum aperture by 1 2/₃stop. (with a maximum output aperture of f/0.74)
Increase MTF.
Makes lens 0.58x wider.
Click-less manual G aperture ring.
Optics designed by Caldwell Photographic in the USA (patent pending).
The tripod foot is detachable and compatible with Arca Swiss, Markins, Photo Clam ball heads.

Compatibility List of Camera

BlackMagic Pocket Cinema Camera (original version)
BlackMagic Micro Cinema Camera
BlackMagic Micro Studio Camera 4K
BlackMagic Studio Camera 4K
BlackMagic Studio Camera

Tips: Before mounting your lens to the adaptor, please make sure that the f-stop of aperture ring on the adaptor is turned to «7» (i.e. mounting your lens to the adaptor while only the aperture ring in the adaptor is full closed.).

Remark: This mount is manual aperture control. It does NOT support electronic aperture control.

Disclaimer: we are NOT licensed, approved or endorsed by Micro Four Thirds or Nikon

List of incompatible lenses

Nikkor 2.1cm f/4

Nikkor AI-S 20mm f/2.8

Nikkor E series lens (the diaphragm blades are not operated by mechanical linkage levers, such as Nikkor 105mm f/1.4E, PC-E 24mm, 45mm, 85mm T/S, Nikkor AF-S 70-200mm f/2.8E FL ED VR, Nikkor AF-S 16-80mm f/2.8-4E ED DX VR, and Nikkor AF-S 24-70mm f/2.8E ED VR)

Related Press Release 2 Dec 2013: Metabones Nikon G to BMCC/BMPCC Speed Boosters Available Starting Today

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.

Features

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.

Our Smart AdapterTM series adapters have the following additional features

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.
EXIF data such as lens identification, focal length and aperture.

Key Features

Фотоаппарат Fujifilm X100S технические характеристики и отзывы

GH5, XL or ULTRA?

Обзор Sony NEX-5T

In a nutshell, we recommend XL for full frame lenses and ULTRA for DX/APS-C lenses. For the long story, read the ‘limitations’ column.

Features and Benefits		Limitations
Optical Increase maximum aperture by 11/₃ stop Increase MTF Makes lens 0.64x wider Patented 6-element/4-group optical design by Caldwell Photographic in the USA Supports 4k video mode with DX lenses (except on GH5). Electronic Autofocus Can be powered either by camera body or by third-party external 5V power source (not included) Iris/aperture controlled by the camera body Smooth iris support with the latest Canon (2009+), Tamron (SP series 2013+) and Sigma (2016+) lenses Image stabilization (IS) lens support Support for cameras with in-body image stabilization (IBIS), including Panasonic GX7, GX8, GX80/85 and Olympus cameras Electronic manual focusing (e.g. EF 85/1.2L II and discontinued EF 50/1.0L) EXIF (focal length, aperture, zoom range) Distance and zoom display on camcorders (requires lenses supporting distance information) Canon Cinema EOS lens (CN-E Compact-Servo) support, including AF (requires external 5V power through micro USB port), auto iris and servo zoom Other Detachable tripod foot compatible with Arca Swiss, Markins and Photo Clam ball heads. The opening is flocked with felt material to reduce internal reflection.		Supports only Panasonic GH5s, GH5, GH4, GH3, G3, G5, G6, G7, G9, G10, GF3, GF5, GF6, GX1, GX8, GX80/GX85, GX9, Olympus E-PL7, PEN-F, Blackmagic Cinema Camera with Micro Four Thirds mount, Pocket Cinema Camera* and Micro Cinema Camera*** EF-S lenses require modification to fit or may remain incompatible even after modification (but third-party DX lenses can be used without modification) On GH5, Speed Booster XL can be used with full frame lenses only. DX lenses are unable to cover full-sensor-width readout + in-body image stabilizer (IBIS) EF-S and third-party DX lenses do not cover the full Micro Four Thirds sensor in still photo and FHD video (but will cover 4k video mode on GH4, GX8 and GX80/85). No video AF for Olympus AF may not work if the maximum aperture of the lens plus any EF Extender or other teleconverter attached is smaller than f/8 before boost or smaller than f/5.1 after boost. AFC (continuous AF) and AFF (flexible AF) modes are not supported, except on Olympus OM-D E-M1. Panasonic video AF may hunt more than a native lens or have unsatisfactory performance. Some Tamron lenses may have unsatisfactory AF accuracy. No support for Focus Stacking and Focus Bracketing on Olympus. On Olympus, other than E-M1, you may move the single AF point among any of the 81, but you may not multi-point AF. There is no restriction on E-M1 and Panasonic. Very early Olympus models (e.g. E-PL1) have no autofocus support. EF-mount lenses are not silent but may make audible click noises during autofocus operation and iris changes which may be picked up by the built-in microphone of the camera. An external microphone is recommended for video. Use of Canon Cinema Compact-Servo lenses such as CN-E 18-80mm T4.4 L KAS S for still photography is not supported. Iris changes are in 1/8 stop steps which may be noticeable in video recordings. Programmed exposure mode and shutter priority exposure mode should not be used for video. This limitation does not apply to Cinema EOS lenses which permit fine resolution iris control, such as CN-E 18-80mm T4.4 L IS KAS S. No support for in-camera correction such as peripheral shading, CA and distortion

Features and Benefits

Limitations

Optical

Increase maximum aperture by 11/₃ stop
Increase MTF
Makes lens 0.64x wider
Patented 6-element/4-group optical design by Caldwell Photographic in the USA
Supports 4k video mode with DX lenses (except on GH5).

Electronic

Autofocus
Can be powered either by camera body or by third-party external 5V power source (not included)
Iris/aperture controlled by the camera body
Smooth iris support with the latest Canon (2009+), Tamron (SP series 2013+) and Sigma (2016+) lenses
Image stabilization (IS) lens support
Support for cameras with in-body image stabilization (IBIS), including Panasonic GX7, GX8, GX80/85 and Olympus cameras
Electronic manual focusing (e.g. EF 85/1.2L II and discontinued EF 50/1.0L)
EXIF (focal length, aperture, zoom range)
Distance and zoom display on camcorders (requires lenses supporting distance information)
Canon Cinema EOS lens (CN-E Compact-Servo) support, including AF (requires external 5V power through micro USB port), auto iris and servo zoom

Other

Detachable tripod foot compatible with Arca Swiss, Markins and Photo Clam ball heads.
The opening is flocked with felt material to reduce internal reflection.

Supports only Panasonic GH5s, GH5, GH4, GH3, G3, G5, G6, G7, G9, G10, GF3, GF5, GF6, GX1, GX8, GX80/GX85, GX9, Olympus E-PL7, PEN-F, Blackmagic Cinema Camera with Micro Four Thirds mount**, Pocket Cinema Camera*** and Micro Cinema Camera***
EF-S lenses require modification to fit or may remain incompatible even after modification (but third-party DX lenses can be used without modification)
On GH5, Speed Booster XL can be used with full frame lenses only. DX lenses are unable to cover full-sensor-width readout + in-body image stabilizer (IBIS)
EF-S and third-party DX lenses do not cover the full Micro Four Thirds sensor in still photo and FHD video (but will cover 4k video mode on GH4, GX8 and GX80/85).
No video AF for Olympus
AF may not work if the maximum aperture of the lens plus any EF Extender or other teleconverter attached is smaller than f/8 before boost or smaller than f/5.1 after boost.
AFC (continuous AF) and AFF (flexible AF) modes are not supported, except on Olympus OM-D E-M1.
Panasonic video AF may hunt more than a native lens or have unsatisfactory performance.
Some Tamron lenses may have unsatisfactory AF accuracy.
No support for Focus Stacking and Focus Bracketing on Olympus.
On Olympus, other than E-M1, you may move the single AF point among any of the 81, but you may not multi-point AF. There is no restriction on E-M1 and Panasonic.
Very early Olympus models (e.g. E-PL1) have no autofocus support.
EF-mount lenses are not silent but may make audible click noises during autofocus operation and iris changes which may be picked up by the built-in microphone of the camera. An external microphone is recommended for video.
Use of Canon Cinema Compact-Servo lenses such as CN-E 18-80mm T4.4 L KAS S for still photography is not supported.
Iris changes are in 1/8 stop steps which may be noticeable in video recordings. Programmed exposure mode and shutter priority exposure mode should not be used for video. This limitation does not apply to Cinema EOS lenses which permit fine resolution iris control, such as CN-E 18-80mm T4.4 L IS KAS S.
No support for in-camera correction such as peripheral shading, CA and distortion

A new Micro-4/3 mount Speed Booster adapter designed exclusively for the Panasonic GH4 and other selected Micro Four Thirds cameras (refer to the below camera compatibility table), with a magnification of 0.64x. The Speed Booster XL 0.64x uses an advanced 6-element optical design to achieve extraordinary optical performance at apertures up to an incredible f/0.80, a new record for Micro Four Thirds format.

The new Speed Booster XL 0.64x reduces the full-frame crop factor of the Panasonic GH4 from 2.0x to 1.28x, thus effectively transforming these cameras into APS-H format. When the GH4 is used in Cinema 4k video mode the horizontal full frame crop factor is reduced from 2.34x to 1.50x, thus effectively transforming the GH4 into a super-35 format 4k cine camera. In addition, the speed of any attached lens is increased by 11/₃ stops, with a maximum output aperture of f/0.80 when an f/1.2 lens is used. For example, a 50mm f/1.2 becomes a 32mm f/0.80, which is the fastest aperture available for full size Micro Four Thirds format. (More information can be found in the press release here )

Key Features

The Canon EF Lens to Micro Four Thirds Speed Booster (MB_SPEF-m43-BM1) is not compatible with Olympus E-M10, E-M1, E-M5 . Olympus E-M10, E-M1, E-M5 users please choose another version called «Canon EF Lens to Micro Four Thirds Speed Booster S Version (MB_SPEF-m43-BM2)». S version must use with active MFT mount carmeas, such as OMD, GH4 and BMPCC, but not for passive MFT mount cameras e.g. BMCC 2.5K.

Increase maximum aperture by 1 stop.
Increase MTF.
Makes lens 0.71x wider.
Build-in electronics to control lens aperture.
The lens aperture is set by the controls on the camera body.
Powered by camera body. no external power source required. (also accept 3rd party external power supply via MicroUSB socket when using with passive MFT mount camera e.g. BMCC 2.5K)
High performance 32-bit processor and efficient switched-mode power supply.
The tripod foot is detachable and compatible with Arca Swiss, Markins and Photo Clam ball heads.

Optics designed by Caldwell Photographic in the USA (patent pending)

Key Features

Leica R to Micro-4/3 mount Speed BoosterTM adapters designed exclusively for the Blackmagic Pocket Cinema Camera (BMPCC), Blackmagic Micro Cinema Camera(BMMCC) and Blackmagic Micro Studio Camera 4K(BMMSC 4K). Note that this new 0.58x Speed Boosters will only attach to BMPCC equipped with a Micro-4/3 mount. They cannot be attached to standard Micro 4/3 and BMPCC 4K cameras.

The new 0.58x Speed Booster reduces the crop factor of the BMPCC from 2.88x to 1.75x, and produces the largest aperture optics currently available, with a maximum output aperture of f/0.74. For example, a 50mm f/1.2 now becomes a 29mm f/0.74 (i.e, by using 50mm lens, the actual focal length in BMPCC is 29mm x 3.02 = 87.58mm), and the Sigma 18-35mm f/1.8 becomes the world’s fastest zoom lens at 10.5-20.3mm f/1.0 with stunningly sharp performance. (i.e, by using 18-35mm lens, the actual focal length in BMPCC is from (10.5mm x 3.02 = 31.71mm) to (20.3mm x 3.02 = 61.31mm). More detail about crop factors, please refer to the table below:

Table of compatibility and resulting crop factors:

Optics designed by Caldwell Photographic in the USA (patent granted)

Key Features

Increase maximum aperture by 1 2/₃stop. (with a maximum output aperture of f/0.74)
Increase MTF.
Makes lens 0.58x wider.
Optics with 6 elements in 4 groups, designed by Caldwell Photographic in the USA (patent pending).
Build-in electronics to control lens aperture.
The Lens aperture is set by the controls on the camera body.
Powered by camera body. no external power source required.
High performance 32-bit processor and efficient switched-mode power supply.
The tripod foot is detachable and compatible with Arca Swiss, Markins and Photo Clam ball heads.

Optics designed by Caldwell Photographic in the USA (patent pending)

Область применения

В настоящее время широкоугольные конвертеры используются, главным образом, с псевдозеркальными фотоаппаратами и видеокамерами с несменным вариообъективом. Кроме того, такие конвертеры нашли применение на телевидении со сменными объективами профессиональных телекамер, смещая диапазон фокусных расстояний в более короткофокусную область. Такое решение позволяет более эффективно использовать дорогостоящую оптику, приспосабливая её для работы в тесных помещениях и других ситуациях, требующих широких углов поля зрения.

Широкоугольный конвертер состоит из двух компонентов, передний из которых отрицательный, а задний — положительный. Коэффициент телеувеличения, определяющий изменение фокусных расстояний, всегда меньше единицы и обычно находится в диапазоне 0,7—0,85×. Конвертеры увеличивают глубину резко изображаемого пространства, а светосилу объектива оставляют неизменной. При этом разрешающая способность полученной оптической системы ниже, чем у одного объектива, поскольку насадка привносит собственные аберрации.

Редуктор фокуса

Редуктор фокуса «Sony LA-EA4»

К широкоугольным конвертерам можно отнести устройства под названием редуктор фокуса, также известный как телекомпрессор. От обычного широкоугольного конвертера отличается тем, что располагается между объективом и камерой и, вместо увеличения угла его поля зрения, уменьшает угол изображения. Это приводит к уменьшению поля изображения объектива и позволяет более эффективно использовать его с кадром меньшего размера. В результате поле зрения объектива с таким конвертером на уменьшенном кадровом окне незначительно отличается от даваемого на «родном» формате без конвертера. Принцип действия широкоугольного конвертера аналогичен телеконвертеру, но даёт обратный эффект, одинаковый для всех объективов.

С недавнего времени редукторы фокуса получили распространение в фотографии и видеографии, позволяя использовать киносъёмочные и «полнокадровые» фотообъективы на цифровых фотоаппаратах с уменьшенной матрицей без значительных потерь поля зрения. При точном подборе коэффициента телеувеличения конвертера, кроп-фактор матрицы приближается к единице. Благодаря особенностям оптического устройства, разрешающая способность объектива, используемого совместно с широкоугольным конвертером не падает, а возрастает. Одновременно увеличивается светосила объектива за счёт меньшей площади, на которой распределяется проходящий свет.

Наиболее часто встречаются фоторедукторы с коэффициентом телеувеличения 0,71×—0,72×. Так полнокадровый объектив с фокусным расстоянием 50мм на камере с кроп-фактором 2 даст изображение, эквивалентное телеобъективу с фокусным расстоянием 100мм. Использование редуктора фокуса на той же камере позволяет получить изображение, эквивалентное 85-86мм.

Одним из первых производителей таких устройств под брендом «Speed Booster» считается компания Metabones. Её конвертеры позволяют использовать «полнокадровую» фотооптику на беззеркальных фотоаппаратах с матрицей размера APS-C без изменения поля зрения объектива. Светосила любых объективов при этом возрастает на 1 ступень, что и отражено в названии. Глубина резкости объектива с таким конвертером не изменяется. Одновременно эти конвертеры служат в качестве адаптера, предназначенного для стыковки аппаратуры и оптики с разными байонетами. В настоящее время в Азии существует несколько оптических компаний, занимающихся производством аналогичных устройств:

RJ Camera,
Shanghai Transvision Photographic Equipment Co.,Ltd (выпускает продукцию под брэндом Kipon),
Shenyang Zhongyi Optical and Electronic Company (выпускающая продукцию на западном рынке под брэндом Mitakon),
а также множество частных оптико-механических предприятий.

Недостатки устройств такого класса заключаются в замедленной работе автофокуса, а также не всегда корректных балансе белого и автоматическом управлении экспозицией. Кроме того, у некоторых объективов значительно падает качество изображения в углах, а программная коррекция дисторсии неработоспособна.

Аналогичный принцип действия имеют конвертеры, встраиваемые в вариообъективы двухформатных профессиональных видеокамер, и предназначенные для компенсации поля зрения при переключении между различными соотношениями сторон кадра. Стандартная кратность такого конвертера, вдвигаемого за объектив, составляет 0,82×, позволяя более эффективно использовать поле изображения при переходе с кадра 16:9 на 4:3.

Key Features

Features:

Industry’s best aperture ring covers a 8-stop range markings, clearly indicating actual number of f-stops. No more guesswork! (Patent pending).
Compatible with both Nikkor G lens & F lens (include non-AI & AI lens mounts).
Advanced 5-element/4-group optical design incorporating ultra-high index tanatalum-based optical glass by Caldwell Photographic in the USA (patent pending).
Increase maximum aperture by 1 stop.
Increase MTF.
Makes lens 0.71x wider.
The tripod foot is detachable and compatible with Arca Swiss, Markins, Photo Clam ball heads.

Note: This Speed Booster ULTRA is NOT fully compatible with full-frame Sony A7, A7R and A7S. When the Speed Booster are used with Sony A7, A7R or A7S the camera is required to be used in the «APS-C Size Capture» mode.

Remark: This mount is manual aperture control. It does NOT support electronic aperture control.

Disclaimer: we are NOT licensed, approved or endorsed by Sony or Nikon

List of incompatible lenses

Nikkor 2.1cm f/4

Nikkor AI-S 20mm f/2.8

Description

Features:

Increase maximum aperture by 1 2/₃stop. (with a maximum output aperture of f/0.74)
Increase MTF.
Makes lens 0.58x wider.
Optics designed by Caldwell Photographic in the USA (patent granted).
The tripod foot is detachable and compatible with Arca Swiss, Markins, Photo Clam ball heads.

Compatibility List of Camera

BlackMagic Pocket Cinema Camera (original version)
BlackMagic Micro Cinema Camera
BlackMagic Micro Studio Camera 4K
BlackMagic Studio Camera 4K
BlackMagic Studio Camera

Disclaimer: we are NOT licensed, approved or endorsed by Micro Four Thirds or Leica.

Remark:

Super telephotos such as the Telyt 560/5.6 may vignette at the corners.
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

Why Metabones?

Since its inception, Metabones has been designing and manufacturing lens adapters recognized among professionals and enthusiasts as leaders in design and workmanship.

Metabones uses matte-black treatment to keep internal reflection to a minimum in order to maintain the maximum optical quality possible with the lens.

Features

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.

Our Smart AdapterTM series adapters have the following additional features

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.
EXIF data such as lens identification, focal length and aperture.

Key Features

GH5, XL or ULTRA?

In a nutshell, we recommend XL for full frame lenses and ULTRA for DX/APS-C lenses. For the long story, read the ‘limitations’ column.

Features and Benefits		Limitations
Optical Increase maximum aperture by 1 stop Increase MTF of any lens attached Makes lens 0.71x wider Patented 5-element/4-group optical design incorporating ultra-high index tantalum-based optical glass by Caldwell Photographic in the USA Supports 16:9 video with DX lenses. Electronic Autofocus Can be powered either by camera body or by third-party external 5V power source (not included) Iris/aperture controlled by the camera body Smooth iris support with the latest Canon (2009+), Tamron (SP series 2013+) and Sigma (2016+) lenses Image stabilization (IS) lens support Support for cameras with in-body image stabilization (IBIS), including Panasonic GX7, GX8, GX80/85 and Olympus cameras Electronic manual focusing (e.g. EF 85/1.2L II and discontinued EF 50/1.0L) EXIF (focal length, aperture, zoom range) Distance and zoom display on camcorders (requires lenses supporting distance information) Cinema EOS lens support (CN-E 18-80mm T4.4 L), including AF (requires external 5V power via micro USB port), auto iris and servo zoom Other Detachable tripod foot compatible with Arca Swiss, Markins and Photo Clam ball heads. The opening is flocked with felt material to reduce internal reflection. Compatible with all MFT mount cameras, including GH4, OM-D, Blackmagic Cinema Camera, Blackmagic Pocket Cinema Camera and JVC GY-LS300.		EF-S lenses require modification to fit or may remain incompatible even after modification (but third-party DX lenses can be used without modification) Some EF-S and DX lenses may not have enough coverage of the entire image circle for stills after widening by 0.71x (but video will have enough coverage). No video AF for Olympus AF may not work if the maximum aperture of the lens plus any EF Extender or other teleconverter attached is smaller than f/8 before boost or smaller than f/5.6 after boost. AFC (continuous AF) and AFF (flexible AF) modes are not supported, except on Olympus OM-D E-M1. Panasonic video AF may hunt more than a native lens or have unsatisfactory performance. Some Tamron lenses may have unsatisfactory AF accuracy. No support for Focus Stacking and Focus Bracketing on Olympus. On Olympus, other than E-M1, you may move the single AF point among any of the 81, but you may not multi-point AF. There is no restriction on E-M1 and Panasonic. Very early Olympus models (e.g. E-PL1) have no autofocus support. EF-mount lenses are not silent but may make audible click noises during autofocus operation and iris changes which may be picked up by the built-in microphone of the camera. An external microphone is recommended for video. Use of Canon Cinema lenses such as CN-E 18-80mm T4.4L IS KAS S for still photography is not supported. Iris changes are in 1/8 stop steps which may be noticeable in video recordings. Programmed exposure mode and shutter priority exposure mode should not be used for video. This limitation does not apply to Cinema EOS lenses which permit fine resolution iris control, such as CN-E 18-80mm T4.4 L IS KAS S. No support for in-camera correction such as peripheral shading, CA and distortion Designed to cover a 24mm image circle, JVC GY-LS300 needs to have VSM configured to 86% (4k) when using a true Super 35 lens such as Canon CN-E 18-80mm T4.4L IS KAS S. Higher VSM settings is possible with full-frame lenses, but will be operating outside of the design parameters of the ULTRA optical formula. Many APS-C/DX lenses do not have adequate coverage at 86% (4k) and on JVC with ULTRA the use of full-frame or true Super 35 lenses is advised.

Features and Benefits

Limitations

Optical

Increase maximum aperture by 1 stop
Increase MTF of any lens attached
Makes lens 0.71x wider
Patented 5-element/4-group optical design incorporating ultra-high index tantalum-based optical glass by Caldwell Photographic in the USA
Supports 16:9 video with DX lenses.

Electronic

Autofocus
Can be powered either by camera body or by third-party external 5V power source (not included)
Iris/aperture controlled by the camera body
Smooth iris support with the latest Canon (2009+), Tamron (SP series 2013+) and Sigma (2016+) lenses
Image stabilization (IS) lens support
Support for cameras with in-body image stabilization (IBIS), including Panasonic GX7, GX8, GX80/85 and Olympus cameras
Electronic manual focusing (e.g. EF 85/1.2L II and discontinued EF 50/1.0L)
EXIF (focal length, aperture, zoom range)
Distance and zoom display on camcorders (requires lenses supporting distance information)
Cinema EOS lens support (CN-E 18-80mm T4.4 L), including AF (requires external 5V power via micro USB port), auto iris and servo zoom

Other

Detachable tripod foot compatible with Arca Swiss, Markins and Photo Clam ball heads.
The opening is flocked with felt material to reduce internal reflection.
Compatible with all MFT mount cameras, including GH4, OM-D, Blackmagic Cinema Camera, Blackmagic Pocket Cinema Camera and JVC GY-LS300.

EF-S lenses require modification to fit or may remain incompatible even after modification (but third-party DX lenses can be used without modification)
Some EF-S and DX lenses may not have enough coverage of the entire image circle for stills after widening by 0.71x (but video will have enough coverage).
No video AF for Olympus
AF may not work if the maximum aperture of the lens plus any EF Extender or other teleconverter attached is smaller than f/8 before boost or smaller than f/5.6 after boost.
AFC (continuous AF) and AFF (flexible AF) modes are not supported, except on Olympus OM-D E-M1.
Panasonic video AF may hunt more than a native lens or have unsatisfactory performance.
Some Tamron lenses may have unsatisfactory AF accuracy.
No support for Focus Stacking and Focus Bracketing on Olympus.
On Olympus, other than E-M1, you may move the single AF point among any of the 81, but you may not multi-point AF. There is no restriction on E-M1 and Panasonic.
Very early Olympus models (e.g. E-PL1) have no autofocus support.
EF-mount lenses are not silent but may make audible click noises during autofocus operation and iris changes which may be picked up by the built-in microphone of the camera. An external microphone is recommended for video.
Use of Canon Cinema lenses such as CN-E 18-80mm T4.4L IS KAS S for still photography is not supported.
Iris changes are in 1/8 stop steps which may be noticeable in video recordings. Programmed exposure mode and shutter priority exposure mode should not be used for video. This limitation does not apply to Cinema EOS lenses which permit fine resolution iris control, such as CN-E 18-80mm T4.4 L IS KAS S.
No support for in-camera correction such as peripheral shading, CA and distortion
Designed to cover a 24mm image circle, JVC GY-LS300 needs to have VSM configured to 86% (4k) when using a true Super 35 lens such as Canon CN-E 18-80mm T4.4L IS KAS S. Higher VSM settings is possible with full-frame lenses, but will be operating outside of the design parameters of the ULTRA optical formula. Many APS-C/DX lenses do not have adequate coverage at 86% (4k) and on JVC with ULTRA the use of full-frame or true Super 35 lenses is advised.

Key Features

Speed Booster ULTRA

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 fullframe 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. (More information can be found in the press release here)

Key Features

Increase maximum aperture by 1 stop.
Increase MTF.
Makes lens 0.71x wider.
Advanced 5-element/4-group optical design incorporating ultra-high index tanatalum-based optical glass by Caldwell Photographic in the USA (patent pending).
Electronic integration of aperture diaphragm, controlled by or from the camera body.
Partial autofocus support for late-model (post-2006) Canon-brand lenses.
Powered by camera body. No external power source required.
High performance 32-bit processor and efficient switched-mode power supply.
The tripod foot is detachable and compatible with Arca Swiss, Markins, Photo Clam ball heads.

Disclaimer: we are NOT licensed, approved or endorsed by Sony or Canon.

Description

Speed Booster ULTRA

Sharper corners, less distortion, reduced vignetting

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.

Why Metabones?

Since its inception, Metabones has been designing and manufacturing lens adapters recognized among professionals and enthusiasts as leaders in design and workmanship.

Metabones uses matte-black treatment to keep internal reflection to a minimum in order to maintain the maximum optical quality possible with the lens.

Features

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.

Our Smart AdapterTM series adapters have the following additional features

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.
EXIF data such as lens identification, focal length and aperture.

Description

** To clear up any potential confusion, this is NOT Sony Alpha, but Alpa of Switzerland. You will most likely be using the Kern Macro Switar 50mm f/1.8 or f/1.9 apochromat lens on this adapter.

Speed Booster ULTRA

Sharper corners, less distortion, reduced vignetting

Why Metabones?

Since its inception, Metabones has been designing and manufacturing lens adapters recognized among professionals and enthusiasts as leaders in design and workmanship.

Metabones uses matte-black treatment to keep internal reflection to a minimum in order to maintain the maximum optical quality possible with the lens.

Features

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.

Our Smart AdapterTM series adapters have the following additional features

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.
EXIF data such as lens identification, focal length and aperture.