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Metabones Speed Booster Ultra 0.71x Adapter for Select PL Lenses to Micro Four Thirds Camera

BH #MEMBSLM43BT1 • MFR #MB_SPPL-M43-BT1
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Metabones Speed Booster Ultra 0.71x Adapter for Select PL Lenses to Micro Four Thirds Camera
Key Features
  • Select PL Lenses to M4/3 Mount
  • For Zeiss CP.2, CZ.2 & CP.3 Lenses Only
  • Increases Maximum Aperture by 1 Stop
  • Increases Angle of View by 0.71x
Boost the performance of your Zeiss CP.2, CZ.2, or CP.3 PL-mount lenses when mounted to your Micro Four Thirds camera with the Speed Booster Ultra 0.71x Adapter from Metabones. This adapter uses specialized optics to reduce the effects of crop factor on mirrorless cameras, offering a magnification of 0.71x to make the lens wider. It also simultaneously increases the maximum aperture by about 1 stop, all while adding essentially zero spherical aberration and distortion to help preserve the quality of your image.
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Metabones MB_SPPL-M43-BT1 Overview

Boost the performance of your Zeiss CP.2, CZ.2, or CP.3 PL-mount lenses when mounted to your Micro Four Thirds camera with the Speed Booster Ultra 0.71x Adapter from Metabones. This adapter uses specialized optics to reduce the effects of crop factor on mirrorless cameras, offering a magnification of 0.71x to make the lens wider. It also simultaneously increases the maximum aperture by about 1 stop, all while adding essentially zero spherical aberration and distortion to help preserve the quality of your image.

Precision-crafted from brass and given chromium plating, the adapter is designed for daily use and guarantees infinity focus. This model has a flocked interior that will limit flaring and ghosting from reflections inside the adapter, and a satin exterior finish matches most cameras for a unified appearance. Additionally, it has a detachable Arca-type compatible tripod foot for simple mounting to a variety of tripods.

This adapter is designed exclusively for Zeiss CP.2, CZ.2, and CP.3 lenses. Any attempt to mount a lens that is not listed as compatible with this adapter may result in damage to the lens and the adapter.

Lens Compatibility List
Zeiss Compact Prime Lenses
  • CP.2 15 mm / T2.9
  • CP.2 21 mm / T2.9
  • CP.2 25 mm / T2.1
  • CP.2 25 mm / T2.9
  • CP.2 28 mm / T2.1
  • CP.2 35 mm / T1.5
  • CP.2 35 mm / T2.1
  • CP.2 50 mm / T1.5
  • CP.2 50 mm / T2.1
  • CP.2 50 mm / T2.1
  • CP.2 85 mm / T1.5
  • CP.2 85 mm / T2.1
  • CP.2 100 mm / T2.1
  • CP.2 135 mm / T2.1
  • CP.3 15 mm / T2.9
  • CP.3 18 mm / T2.9
  • CP.3 21 mm / T2.9
  • CP.3 25 mm / T2.1
  • CP.3 28 mm / T2.1
  • CP.3 35 mm / T2.1
  • CP.3 50 mm / T2.1
  • CP.3 85 mm / T2.1
  • CP.3 100 mm / T2.1 CF9
  • CP.3 135 mm / T2.1
Zeiss Cinema Zoom lenses
  • CZ.2 15 - 30 mm / T2.9
  • CZ.2 28 - 80 mm / T2.9
  • CZ.2 70 - 200 mm / T2.9

Metabones MB_SPPL-M43-BT1 Specs

Item Type
1x Reducing Lens Mount Adapter
Camera Compatibility
Micro Four Thirds Mount
Lens Compatibility
ARRI PL Mount
Magnification
0.71x
Electronic Communication
No
Exposure Change
1-Stop Light Gain
Included Shims
Materials
Brass
Packaging Info
Package Weight
1.53 lb
Box Dimensions (LxWxH)
5.9 x 5.55 x 2.85"

Metabones MB_SPPL-M43-BT1 Reviews

Don´t use with a GH5!

By David
Rated 1 out of 5
Date: 2019-08-07

I bought this to use with my GH5 and canon lenses. ALL of the lenses I have used cast a serious blue flare in the center which makes the image almost unusable. This happens when ANY sort of light hits the lens from the front. It is unlike any normal flare from any normal lens. Look this problem up on the internet. You will find others with the same problem. Just saying... stay away if possible.

Perfect! (For my needs)

By Alvin
Rated 5 out of 5
Date: 2019-05-02

This was a hard purchase to make since I didn’t know if it would work and there was very little information about its compatibility with most lenses. I bought it because I have the Blackmagic pocket 4K and I wanted to shoot anamorphic lenses. I rented the SLR magic anamorphot PL lenses and both the 35mm and 50mm fit this adapter. I didn’t rent the 70 so I can’t soeak to it’s compatibility, but based on photos of the 70, I don’t think it would fit. But the 35 and 50 worked beautifully. The adapter perfectly eliminated the crop on these lenses that would’ve been present because of the small sensor. And as advertised, I got an extra stop of light coming into the camera. So all in all the speedbooster did its job wonderfully...with THESE lenses. People have said it doesn’t work with many lenses. So it’s a gamble. However if you’re itching to shoot anamorphic, and you have the pocket 4K...and you want to use SLR magic anamorphics...this is for you!!

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