The Canon CM-V1 Locking EF Mount Kit replaces the Canon EF mount that comes attached to your C500 Mark II. The locking mount maintains the same electronic functionality of the standard EF mount, but locks your lens into the mount to prevent play. Cinema lenses, especially zooms, require that lenses maintain a precise distance from the image plane for best results; any play between the lens and mount can cause the lens to suffer from poor optical or mechanical performance.
The locking EF-C mount incorporates the EF mount electronic contacts and allows you to mount virtually any Canon EF mount lens, either the stills variety or the cinema lens variety, on your camera. The kit includes the locking EF mount and a shim kit for precisely adjusting the mount on your camera to ensure the correct flange distance.
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Key Features
- Mounts Directly on Camera
- Incorporates EF Electronic Contacts
- Shim Kit Included
The Canon CM-V1 Locking EF Mount Kit replaces the Canon EF mount that comes attached to your C500 Mark II. The locking mount maintains the same electronic functionality of the standard EF mount, but locks your lens into the mount to prevent play. Cinema lenses, especially zooms, require that lenses maintain a precise distance from the image plane for best results; any play between the lens and mount can cause the lens to suffer from poor optical or mechanical performance.
More DetailsCanon 3937C001 Overview
UPC: 013803324839
Canon 3937C001 Specs
| Item Type | |
| Camera Compatibility | |
| Lens Compatibility | |
| Electronic Communication | |
| Included Shims | |
| Materials |
Packaging Info
| Package Weight | |
| Box Dimensions (LxWxH) |
Canon 3937C001 Reviews
Pricing makes me want to switch brands
By Justin
Rated 2 out of 5
Date: 2023-11-22
It works as advertised, but over 2k for a lock feature that should've just come on the pro cameras to begin with? Seriously Canon, this is the kind of pricing that makes your customers want to go elsewhere.
upgrade if you can
By Ken
Rated 5 out of 5
Date: 2020-11-17
get this upgrade if you can. its a better mount than the normal EF mount. very tight and secure.
See any errors on this page?
Is this the best locking EF Mount Kit for the ...
Is this the best locking EF Mount Kit for the Canon C300 Mark III?
it is the only locking EF mount for the camera
Date published: 2021-11-21
Will this work with the C300ii?
Will this work with the C300ii?
The Canon CM-V1 Locking EF Mount Kit is designed to work with the EOS C300 Mark III and C500 Mark II cameras. It would not work with the C300 mk II.
Date published: 2023-06-08