新しい機能として、レンズを回転せずにより強固に装着できるEマウントのPositive Lockに対応しました。SONY FS7 II 等でご利用いただけます。新たにセンサーを保護しホコリや湿気の侵入を防ぐRubber gasket protectsを採用し、アダプタの動作モード（Green及びAdvanced）を通知するStatus notification LED light機能とSonyの手振れ補正機構 Steady Shot を制御するOn/Offスイッチ（Dedicated switch controls）が追加されました。
アダプター内にCaldwell社製の5枚4群レンズが内蔵され、0.71倍ワイド化しF値を1段明るくできるSpeed Booster ULTRA搭載モデルです。焦点距離を0.71倍にする事で35mm換算のレンズをほぼフルサイズで利用する事が出来るようになりました。また光も同時に集光させる事で開放値も1段分明るくなり、アダプターに内蔵のレンズによりMTF値、シャープネス、コントラストも向上される仕様となっています。
フェルト材料を採用したフロックコーティング処理により、アダプタ内に入った光の反射を抑えフレアを低減します。チルトシフトレンズ使用時などのパフォーマンス改善や逆光等の強い光の条件でさらに画質改善を行いました。
●テスト済みのカメラボディ
※2018年2月1日 弊社検証においてA7RIIIにて動作確認済み
A9、A7SII、A7RII、A7II、A7S、A7R、A7
A6500、A6300、A6000、A5000
PXW-FS7M2、PXW-FS5、PXW-FS7、NEX-FS700、NEX-FS100
NEX-EA50、NEX-VG900、NEX-VG30、NEX-VG20、NEX-VG10
NEX-7、NEX-6、NEX-5R、NEX-5N、NEX-5、NEX-C3、NEX-3
●Metabones（2017/12/13）によるレンズ動作検証リスト
※Fast AF on all E-mount cameras (phase detection AF only with Sony A9)
Canon EF 8-15mm f/4L USM Fisheye*
Canon EF 11-24mm f/4L USM
Canon EF 16-35mm f/2.8L USM
Canon EF 16-35mm f/4L IS USM
Canon EF 20-35mm f/3.5-4.5 USM
Canon EF 24mm f/1.4L USM
Canon EF 24-105mm f/4L IS USM
Canon EF 28-80mm f/3.5-5.6 II
Canon EF 40mm f/2.8 STM*
Canon EF 50mm f/1.2L USM
Canon EF 50mm f/1.4 USM
Canon EF 50mm f/1.8 STM*
Canon EF 70-200mm f/2.8L IS II USM*
Canon EF 70-200mm f/4L IS USM
Canon EF 70-200mm f/4L USM
Canon EF 70-300mm f/4-5.6L IS USM*
Canon EF 85mm f/1.2L II USM
Canon EF 100mm f/2.8L Macro IS USM*
Canon EF 100-400mm f/4.5-5.6L IS USM
Canon EF 100-400mm f/4.5-5.6L IS II USM*
Canon EF 180mm f/3.5L Macro USM
Canon EF 200mm f/2.8L II USM
Canon EF 300mm f/4L IS USM
Canon EF 400mm f/5.6L USM
Canon EF Extender 1.4x III
Canon EF Extender 2x II
Sigma 24-105mm f/4 DG OS Art
Sigma 50mm f/1.4 DG HSM
Tamron SP 15-30mm f/2.8 VC USD A012*
Tamron SP 24-70mm f/2.8 Di VC USD A007
Tamron SP 45mm f/1.8 Di VC USD F013*
Tamron SP 70-200mm f/2.8 Di VC USD A009*
Tamron 70-300mm f/4-5.6
Tamron SP 90mm f/2.8 Macro
Tamron 150-600mm f/5-6.3 VC USD A011*
※ユーザー検証によるレンズ動作検証リスト
Canon EF 14mm f/2.8L II USM
Canon EF 24-70mm f/4L IS USM
Canon EF 28-300mm f/3.5-5.6L USM
Canon EF 35mm f/1.4L II USM
Canon EF 35mm f/2L IS USM
Canon EF 35-350mm f/3.5-5.6L USM
Canon EF 70-200mm f/2.8L IS USM (Mark I)
Canon EF 70-200mm f/2.8L USM (non-IS)
Canon EF 75-300mm f/4-5.6 IS USM
Canon EF 85mm f/1.8 USM
Canon EF 400mm f/2.8L IS USM (Mark I)
Canon EF 400mm f/5.6L USM
Canon EF 500mm f/4L IS USM (Mark I)
Sigma 12-24mm f/4.5-5.6 (Ver I)
Sigma 20mm f/1.4 DG HSM Art
Sigma 24mm f/1.4 DG HSM Art
Sigma 35mm f/1.4 DG HSM Art
Sigma 50mm f/1.4 Art
Sigma 50-500mm f/4-6.3 OS HSM
Sigma 70-200mm F2.8 APO EX DG OS HSM
Sigma 85mm f/1.4 EX DG HSM
Sigma 150mm f/2.8 Macro
Sigma 150-600mm f/5-6.3 OS HSM Contemporary
●Phase-detect AF on A9, A7RII, A7II, A6500 and A6300 only, unable to contrast-detect AF accurately if at all
Canon EF 24-70mm f/2.8L II USM
Canon EF 28-70mm f/3.5-4.5 II
Canon EF 35mm f/1.4L USM
Canon EF 50mm f/1.8 II
Canon EF 100mm f/2.8 Macro USM
Canon EF 135mm f/2L USM
Contax N Vario Sonnar 17-35mm f/2.8
Contax N Planar 50mm f/1.4
Contax N Vario Sonnar 70-200mm f/3.5-4.5
Contax N Planar 85mm f/1.4
●Manual focus only
Samyang 35/1.4
Zeiss CP.2 25mm/T2.9
Zeiss CP.2 100mm/T2.1
Zeiss ZE Distagon 15/2.8
Zeiss ZE Distagon 21/2.8
Zeiss ZE Distagon 35/2
Zeiss ZE Makro-Planar 50/2
Zeiss ZE Makro-Planar 100/2
●Not supported
Focus confirmation “chip” (e.g. Dandelion)
Tamron 28-300/3.5-6.3 XR Di VC LD Aspherical [IF] MACRO A20 (note 6)
※補足注意事項
・Lenses marked with an asterisk support smooth iris.
・Sony NEX cameras cannot display aperture values beyond f/1.0. If a f/1.2 Canon EF lens is used with Speed Booster ULTRA the resulting aperture is f/0.9 but the camera body displays the original aperture f/1.2 to the camera body. i.e, lenses slower than f/1.4 report boosted aperture to camera body; lenses at or faster than f/1.4 report original aperture to camera body. (with firmware later than V0.38)
・Some improperly-made M42 screw mount adapters may short the electronic contacts of the Speed Booster ULTRA and cause damage to the Speed Booster ULTRA and/or camera body.
・Many manual focus lenses (e.g. OM 28/2.8, OM 50/1.8, Leica R 15/3.5) have rear protrusions (spikes, levers, other appendages) which would damage the optics and/or housing of Speed Booster ULTRA They need to be modified before they can be safely used on Speed Booster Check and make sure there are no rear protrusions from the adapter/lens combination before using on Speed Booster. Scratches and damages caused by rear protrusions on Speed Booster are not covered by warranty.
・This Speed Booster ULTRA is NOT fully compatible with full-frame Sony A7 series. When Speed Booster® ULTRA is used with Sony A7 series, the camera will turn on the “APS-C Size Capture” mode automatically.
・Unstable due to unusually high current requirement.
●制約事項
※Optical/mechanical
・Full-frame lens required. EF-S/DX/DC/Di II lenses are NOT supported.
・Speed Booster ULTRA is designed to cover an APS-C image circle which is not big enough to cover a full-size 36mm x 24mm sensor. On a full frame camera body (A7 series, NEX-VG900) the camera needs to have “APS-C/Super 35mm” set to either “Auto” or “On”.
※Autofocus
・AF-C is supported on A9, A7RII, A7II, A6500 and A6300 only, and only in Green mode.
・Continuous video AF is functional in Advanced mode, but performance may be unsatisfactory.
・On Sony A9, only phase-detection autofocus is supported. Contrast-detection autofocus does not work. See firmware release notes for details.
・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.
・The first two autofocus attempts are used to calibrate the lens and as a result may not lock successfully on the target. Half-press the shutter release button again and autofocus will lock successfully.
・Autofocus may have difficultly locking onto subjects which are very close to the nearest focusing distance of the lens.
・Autofocus accuracy depends heavily on the design and working condition of the lens. Lenses with hidden problems which may not be apparent on Canon DSLRs will lead to inaccurate and unreliable autofocus on Sony. Typical problems of this kind that we have seen include an unsmooth/erratic autofocus mechanism (e.g. getting stuck intermittently at a certain focusing distance), a faulty/worn-out distance encoder or other faulty/worn-out internal sensors.
※Other
・No support for lens corrections such as peripheral shading, CA and distortion.
・Use of Canon Cinema lenses such as CN-E 18-80mm T4.4 for still photography is not supported. (Functional, but slower than lenses designed for still photography.)
・Some EF-mount lenses may make audible noises during iris changes and autofocus, wich may be picked up by the built-in microphone of the camera during video recording. Use of an external microphone is advised. Some of the recently-introduced Canon-brand lenses are very quiet, however.
・Early Tamron VC lenses such as the AF 28-300/3.5-6.3 XR Di VC LD Aspherical [IF] Macro (model A20), AF 18-270/3.5-6.3 Di II VC LD Aspherical [IF] MACRO (model B003), SP AF 17-50mm F/2.8 XR Di II VC LD Aspherical [IF] (model B005) may not be able to freely switch between OIS and IBIS because they may not report IS activity status. Later Tamron VC lenses equipped with USD or PZD focus motors are fine.
・Some aftermarket battery grips may cause the aperture to change erraneously. This is a bug of the aftermarket battery grip but NOT arising from the Metabones Speed Booster. Turn off the aftermarket battery grip or use a genuine Sony battery grip.