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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
SKU: 14439
Model: MB_SPCY-E-BM3
Ean: 4897050182901
Condition: New product
Manufacturer: Metabones
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| Type of Product | Lens converters |
| Type of Product | Lenses |
| Lens mount | Sony E |
| Lens Format Coverage | APS-C |
| Lens Design | other |
| Lens type | Lens Extender |
| Adapter is for cameras | Sony E |
| Adapter is for lenses | citai |
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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
