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Adapt vintage Contax Yashica CY lenses to Sony E-mount with 1 stop increase in speed.

Metabones Contax Yashica CY to E-mount Speed Booster ULTRA 0.71x CINE

Product ID: 14439
535,45 tax incl.

Pre-order. Delivery time from 3 weeks.

SKU: 14439
Model: MB_SPCY-E-BM3
Ean: 4897050182901
Condition: New product
Manufacturer: Metabones
535.45
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Type of ProductLens converters
Type of ProductLenses
Lens mountSony E
Lens Format CoverageAPS-C
Lens Designother
Lens typeLens Extender
Adapter is for camerasSony E
Adapter is for lensescitai
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Metabones Contax Yashica CY to E-mount Speed Booster ULTRA 0.71x CINE

Metabones Contax Yashica CY to E-mount Speed Booster ULTRA 0.71x CINE

Adapt vintage Contax Yashica CY lenses to Sony E-mount with 1 stop increase in speed.

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Product details

Overview

The Metabones Contax Yashica CY to E-mount Speed Booster ULTRA 0.71x CINE adapts vintage Contax Yashica CY lenses to Sony E-mount cameras, increasing lens speed by 1 stop, improving MTF, and making lenses 0.71x wider. Featuring a robust cine-style positive-lock mount, advanced 5-element/4-group optical design, and detachable tripod foot, this Speed Booster ULTRA delivers professional-grade optical performance for filmmakers and photographers.

Key Features

  • Reduces crop factor for DX-format cameras from 1.5x to 1.07x
  • Increases maximum aperture by 1 stop
  • Advanced 5-element/4-group optical design with ultra-high index tantalum-based glass
  • Improves MTF, reduces distortion, and sharpens corners
  • Cine-style positive-lock CY mount for zero play
  • Makes lenses 0.71x wider
  • Precision-machined brass with chromium plating and satin finish
  • Detachable Arca-type tripod foot compatible with Arca Swiss, Markins, and Photo Clam ball heads
  • True electronic aperture control (P, S, A, M modes)
  • EXIF data transmission lens identification, focal length, aperture

Specifications

  • Lens Mount: Contax Yashica CY
  • Camera Mount: Sony E-mount
  • Focal Reduction: 0.71x
  • Aperture Boost: +1 stop
  • Optical Design: 5-element/4-group, ultra-high index tantalum-based glass
  • Material: Brass with chromium plating
  • Interior: Felt-flocked to reduce internal reflection
  • Tripod Foot: Detachable, Arca-type compatible
  • Finish: Satin
  • Infinity Focus: Maintained for CRC and floating element lenses
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