Description

Metabones Speed Booster Ultra 0.71x EF to FE/E-Mount (#677) USED — EF to Sony E Adapter with 0.71x Focal Reduction

The Metabones Speed Booster Ultra 0.71x is a high-performance adapter that allows Canon EF lenses to be mounted on Sony E-mount cameras while increasing effective field of view and light transmission. The 0.71x focal reduction design widens the angle of view and effectively boosts the maximum aperture by approximately one stop, helping deliver improved low-light performance and enhanced subject separation.

Engineered for strong optical performance and reliable electronic communication, this adapter maintains autofocus, aperture control, and image stabilization compatibility (when supported by the lens and camera). It’s a popular choice for photographers and filmmakers who want to maximize the performance of their EF glass on Sony E bodies.

Key Features

• Adapts Canon EF lenses to Sony E/FE-mount cameras

• 0.71x focal reduction for wider field of view

• Increases effective maximum aperture by approximately one stop

• Maintains electronic communication for autofocus and aperture control

• Durable, precision-built construction

Condition: Excellent
This adapter is used and in excellent condition, showing minimal signs of use. It is clean, well maintained, and functions properly.

Who Is It For?
Ideal for Sony E-mount shooters who want to use Canon EF lenses with improved light transmission and a wider effective field of view.

Includes: Front and rear caps.