Viltrox R3 PRO AF Adapter for Canon EF-mount lenses to RF-mount + 1 f/stop

Description:

The Viltrox EF-R3 PRO Lens Mount Adapter is a precision-engineered accessory designed to expand the compatibility of full-frame Canon EF-mount lenses with RF Mount Cameras. With a reduction factor of 0.71x, this adapter enhances the apparent angle of view of connected lenses while providing a one-stop increase in light transmission across the lens’s aperture range.

When coupling a lens intended for 35mm film or similarly-sized full-frame camera sensors with an RF Mount Camera, the projected image would typically exceed the Super 35 sensor’s dimensions, resulting in a narrowed effective angle of view and an inherent “crop factor.” The Viltrox EF-R3 PRO addresses this by condensing the light from the lens onto the Super 35 sensor, optimizing light utilization and mitigating the crop factor, while also delivering an additional one-stop boost in light sensitivity.

This adapter facilitates electronic communication between the camera and lens, enabling the seamless operation of autofocus and on-camera aperture control if supported by the lens. Furthermore, it allows for the generation of Exif metadata when used with a directly compatible camera, ensuring comprehensive information storage with captured images.

Constructed with four lens elements in four groups, the EF-R3 PRO ensures optical clarity and colour fidelity, preserving the integrity of your images. Its detachable tripod foot features a 1/4″-20 accessory thread, facilitating direct attachment to tripods or quick release plates for added stability during shooting. Additionally, the adapter includes a micro-USB port for convenient firmware upgrades, ensuring compatibility with future camera and lens innovations.

Key Features:

Maximizes apparent angle of view of combined camera and lens.
Provides a one-stop increase in light sensitivity for the camera over the lens’s aperture range.
Four lens elements in four groups ensure optical clarity and colour fidelity.
Supports electronic communication between camera and lens for autofocus, on-camera aperture control, and Exif metadata generation.
Detachable tripod foot with 1/4″-20 accessory thread enables direct attachment to tripods or quick release plates.
Micro-USB port allows for easy firmware upgrades, ensuring compatibility with future advancements.

Specifications:

Camera Mount: Canon RF
Lens Mount: Canon EF
Magnification: 0.71x
Electronic Communication: Yes
Optical Design: 4 Elements in 4 Groups
Display: No
Tripod Mounting Thread: 1/4″-20 Female
Dimensions: ø: 3.1 x D: 1.0″ / ø: 79.0 x D: 26.0 mm
Weight: 7.0 oz / 199 g

Warranty:

Limited 1-Year Manufacturer Warranty

What’s in the box
1 x Viltrox EF-R3 PRO 0.71x Lens Mount Adapter for Canon EF-Mount Lens to RF Mount
1 x Front Body Cap
1 x Rear Body Cap