Leica R Lens to Micro Four Thirds Speed Booster

Key Features

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



Description

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Features:

  • Increase maximum aperture by 1 stop.
  • Increase MTF.
  • Makes lens 0.71x wider.
  • 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.

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

Remark:

  1. Super telephotos such as the Telyt 560/5.6 may vignette at the corners.
  2. 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.

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

Our Smart AdapterTM  series adapters have the following additional features