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Viltrox EF-R3 PRO 0.71x Lens Mount Adapter for Canon EF-Mount Lens to RF Mount Cine Camera EOS C70 / Red Komodo

BH #VIEFR3PRO • MFR #EF-R3 PRO
Viltrox EF-R3 PRO 0.71x Lens Mount Adapter for Canon EF-Mount Lens to RF Mount Cine Camera EOS C70 / Red Komodo
Key Features
  • Canon EF-Mount Lens to RF Mount Cine Camera EOS C70 / Red Komodo
This 0.71x Lens Mount Adapter from Viltrox allows a full-frame Canon EF-mount lens to be mounted onto a RF Mount Cine Camera EOS C70 / Red Komodo camera. While doing so, the adapter's optics help to maximize the connected lens's apparent angle of view while providing a one-stop increase for the camera over the lens's aperture range.
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Viltrox EF-R3 PRO Overview

This 0.71x Lens Mount Adapter from Viltrox allows a full-frame Canon EF-mount lens to be mounted onto a RF Mount Cine Camera EOS C70 / Red Komodo camera. While doing so, the adapter's optics help to maximize the connected lens's apparent angle of view while providing a one-stop increase for the camera over the lens's aperture range.

If a lens intended for 35mm film or similarly-sized full-frame camera sensors is connected to a RF Mount Cine Camera EOS C70 / Red Komodo camera, it would project an image larger than the camera's Super 35 sized sensor was built to accept. Able to capture only the center portion of the projected image, the effective angle of view of the lens would be narrowed, creating an in-camera "crop factor." This adapter condenses the light from a lens designed for 35mm film or "full frame" camera sensors and projects it onto a RF Mount Cine Camera EOS C70 / Red Komodo camera's Super 35 sensor. This allows the Super 35 sensor to utilize more of the light gathered by a connected lens, which effectively reduces the crop factor while making available to the sensor an additional one stop of light for each of the lens's f/stop settings.

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 when used with a directly compatible camera, this adapter is designed to allow that information to be saved along with image files generated with a combination of the lens, a compatible RF Mount Cine Camera EOS C70 / Red Komodo camera, and the adapter.

This adapter is constructed with four lens elements in four groups that are designed to provide optical clarity as well as color fidelity, and 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.

  • Maximizes apparent angle of view of combined camera and lens
  • Provides a one-stop increase for the camera over the lens's aperture range
  • Four lens elements in four groups for optical clarity as well as color fidelity
  • Supports electronic communication between camera and lens to enable autofocus, on-camera aperture control, and Exif metadata generation when possible
  • Detachable tripod foot with 1/4"-20 accessory thread for direct attachment to tripods or quick release plates that feature 1/4"-20 mounts
UPC: 778469116791

Viltrox EF-R3 PRO Specs

Adapter
Camera MountCanon RF
Lens MountCanon EF
Magnification0.71x
Optical Design4 Elements in 4 Groups
Electronic CommunicationYes
DisplayNo
Physical
Tripod Mounting Thread1/4"-20 Female
Dimensionsø: 3.1 x D: 1.0" / ø: 79.0 x D: 26.0 mm
Weight7.0 oz / 199 g
Packaging Info
Package Weight0.83 lb
Box Dimensions (LxWxH)4.8 x 4.1 x 2.5"

Viltrox EF-R3 PRO Reviews

Great!

By Patrick
Rated 5 out of 5
Date: 2022-08-28

I bought this to use on my Canon R7. The quality is fantastic. No issues here! I love getting that extra stop of light and wider view. Definitely recommended!

better than I thought

By Jeffrey
Rated 4 out of 5
Date: 2022-04-12

Great quality much higher quality than I thought

Does not work correctly

By Luis
Rated 1 out of 5
Date: 2022-07-02

Never worked since i bought. The fstop goes crazy and does not work properly. I have done firmware updates and it does not help. Probably got a bad one.

Works great!

By Sahni
Rated 5 out of 5
Date: 2022-05-31

Works great on Komodo. The locking mount is nice ... though, at the same time it doesn't matter THAT much as the mount on the Komodo can be a bit loose anyways (unlike their older/higher end mounts which have heavy-duty locking mounts directly on the camera) As far as on a Irix 15mm and 150mm which I tested it with: It will show focal length as 10mm/106mm & appropriate speed-boosted F stop in the Metadata in red cine-X which is nice (Won't for the Cine versions of the Lens) But if you're looking at Irix stills lenses: they work great with this adaptor (and the regular Canon EF-RF mount) and you can change the aperture in camera digitally. 150mm will vignette though with the speedbooster. 15mm is fine! (21 and 45 cine lenses don't vignette either)

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Does it have a lens support thread?

Does it have a lens support thread?
Asked by: Jorge
The Viltrox EF-R3 PRO 0.71x Lens Mount Adapter for Canon EF-Mount Lens to RF Mount Cine Camera EOS C70 / Red Komodo has a detachable tripod foot with 1/4"-20 accessory thread for direct attachment to tripods or quick release plates that feature 1/4"-20 mounts.
Answered by: Lawrence
Date published: 2022-08-01

Does this give us smooth autofocus in video on ...

Does this give us smooth autofocus in video on the EOS R systems such as the R3, R5, R6 and R7?
Asked by: NICHOLAS
Yes, Viltrox EF-R3 PRO 0.71x Lens Mount Adapter for Canon EF-Mount Lens to RF Mount Cine Camera EOS C70 / Red Komodo also works well with Canon full frame and mirroless cameras. The tracking focus is contistant and smooth when selecting tracking focus for video recording.
Answered by: llinelva
Date published: 2022-07-07

Is this compatible with a r5 or eos r in crop ...

Is this compatible with a r5 or eos r in crop mode for ef lenses?
Asked by: David
Hi, it is compatible with these two cameras.
Answered by: Viltrox
Date published: 2021-12-20

Is this compatible with the canon EOS R10 to use ...

Is this compatible with the canon EOS R10 to use canon ef-s lenses?
Asked by: Joe
The Viltrox EF-R3 PRO 0.71x Lens Mount Adapter for Canon EF-Mount Lens to RF Mount Cine Camera EOS C70 / Red Komodo is not compatible with cropped sensor EF-S lenses.
Answered by: Lawrence
Date published: 2022-08-19
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