- Converts light transmission from full-frame Canon EF lens to the Super 35mm image format. It extends the angle of view and optical sensitivity, which effectively reduces the crop factor.
- Increases Maximum Aperture by 1 Stop, make more flexible to use in low light environment.
- If a compatible lens includes autofocus, as well as camera-controlled aperture functions, this adapter is intended to allow those features to be used. Also, if an attached lens is capable of generating Exif metadata, this adapter is designed to allow that information to be saved .
- 4 elements in 4 groups that are designed to provide optical clarity as well as color fidelity.
- The underside of its detachable tripod foot is tapped with a 1/4"-20 accessory thread, enabling direct attachment to tripods or quick release plates that feature 1/4"-20 mounts.
- For ease of upgrading its firmware, this adapter also includes a micro-USB port.
- Sold by VILTROX Official, 3-year-warranty , and lifelong technical support.
Viltrox Lenses
VILTROX EF-R3 0.71x Speed Booster Auto focus Mount Adapter compatible with Canon EF Lens to RF mount EOS C70 RED Komodo R5 R6
£668.96 (as of 04/20/2026 17:05 PST - DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.)
Converts light transmission from full-frame Canon EF lens to the Super 35mm image format. It extends the angle of view and optical sensitivity, which effectively reduces the crop factor.
| Brand | VILTROX |
|---|---|
| Manufacturer | Shenzhen Jueying Technology Co., Ltd. |
| Binding | Electronics |
| Model | EF-R3 |
| Color | Black |
| Width | 3.22834 inches |
| Height | 1.10236 inches |
| Length | 2.83464 inches |
| Item Weight | 0.46076612758 pounds |
