Metabones Canon EF Lens to Micro Four Thirds Camera Adapter, T CINE Speed Booster XL 0.64x Magnification (Fifth Generation)

From the renowned brand of Adorama comes the Canon EF Lens to Micro Four Thirds Camera Adapter, T CINE Speed Booster XL 0.64x Magnification (Fifth Generation). This advanced adapter is specifically designed for the Panasonic GH4 and other selected Micro Four Thirds cameras, offering a magnification of 0.64x.

The Speed Booster XL 0.64x employs a sophisticated 6-element optical design to deliver exceptional optical performance, even at apertures up to an impressive f/0.80. This sets a new benchmark for the Micro Four Thirds format.

This innovative adapter reduces the full-frame crop factor of the Panasonic GH4 from 2.0x to 1.28x, effectively transforming these cameras into APS-H format. When used in Cinema 4k video mode, the horizontal full frame crop factor is reduced from 2.34x to 1.50x, making the GH4 a super-35 format 4k cine camera.

The Speed Booster XL 0.64x also enhances the speed of any attached lens by 1 1/3 stops, with a maximum output aperture of f/0.80 when an f/1.2 lens is used. For instance, a 50mm f/1.2 lens becomes a 32mm f/0.80, the fastest aperture available for full-size Micro Four Thirds format.

The adapter boasts a patented 6-element/4-group optical design by Caldwell Photographic in the USA and supports 4k video mode with DX lenses. It offers a range of electronic features such as autofocus, iris/aperture control by the camera body, image stabilization (IS) lens support, and support for cameras with in-body image stabilization (IBIS).

The adapter also features a new positive-lock EF lens mount, a detachable tripod foot compatible with Arca Swiss, Markins, and Photo Clam ball heads, and a rubber gasket to protect the MTF mount connection from dust and moisture.

The Speed Booster XL 0.64x is similar to the Blackmagic-specific 0.64x BMCC Speed Booster, but has been completely re-designed to meet specific requirements. The working distance has been increased by 1mm to accommodate the Panasonic GH4 and other Micro Four Thirds cameras. The optics have been optimized for a standard Micro Four Thirds filter stack thickness of 4mm.

The adapter offers autofocus with an optimal balance of accuracy, speed, consistency, and reliability. It also supports manual focus lens compatibility, subject to certain limitations.

Adorama's Canon EF Lens to Micro Four Thirds Camera Adapter, T CINE Speed Booster XL 0.64x Magnification (Fifth Generation) is a testament to Metabones' commitment to designing and manufacturing lens adapters that are leaders in design and workmanship. The adapter features precision-machined brass with chromium plating on both the camera-body and the lens sides, ensuring 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. This reduces wear and prevents focus errors and optical alignment issues.

The adapter also offers true electronic integration of the aperture diaphragm, allowing the camera to automatically choose the aperture in P or S exposure modes, or for you to dial in yourself on the camera body in A or M modes.

In conclusion, the Canon EF Lens to Micro Four Thirds Camera Adapter, T CINE Speed Booster XL 0.64x Magnification (Fifth Generation) is a high-quality, reliable, and innovative product that enhances the functionality and performance of your camera.