This Vizelex Cine ND Throttle Lens Mount Adapter from FotodioX allows a Canon EF or EF-S-Mount lens to be used with a Select L-mount camera. It is designed to support focusing to infinity and is constructed from brass and aluminum alloy along with a brass mounting ring to provide a durable, yet lightweight camera-to-lens connection.

The Vizelex Cine ND Throttle Lens Mount Adapter includes a built-in variable neutral density filter with an integrated control ring. The variable neutral density filter provides an exposure reduction of 2 to 8 stops so that adjustments to brightness can be made independently of the camera and lens, which enables more flexible exposure and depth-of-field control while recording video within a designated frame rate.

The integrated control ring features a cogwheel design, allowing it to interface with separately available follow-focus accessories.

NOTE: Not for use on Leica brand L-Mount camera bodies.

EF/EF-S Lens to Select L-Mount Body    Easy Exposure Control for Video    Controls Exposure by 2 to 8 Stops    Built-In Variable Neutral Density Filter    Cogwheel Exposure-Control Ring    Supports Focusing to Infinity    Brass and Aluminum Alloy Construction

• Allows a Canon EF or EF-S-Mount lens to be used on a Select L-mount camera
• Built-in variable neutral density filter with an integrated control ring
• Variable neutral density filter provides an exposure reduction of 2 to 8 stops so that adjustments to brightness can be made independently of the camera and lens, enabling more flexible exposure and depth-of-field control while recording video within a designated frame rate
• Constructed from brass and aluminum alloy
• Utilizes a brass lens mounting ring to provide a lightweight camera-to-lens connection with enhanced durability
• Integrated control ring features a cogwheel design, allowing it to interface with separately available follow-focus accessories

Related Questions and Answers

Q: 1. May I use it on my Canon T3i ( EOS 600)What is the purpose of the removable lens inside the adapter?

A: Rafael,You can, and I have used the adapter on my T3I to adapt a relatively ancient 135 mm FL lens.When canon moved from their old FD/FL flange to that used with the EOS lenses, the mount moved a little further from the sensor. It is very difficult to make an adapter that can get the lens close enough, the consequence being that the lens cannot focus out to infinity. The removeable lens makes a focus adjustment so that you can focus all of the way out.However, the quality of that removeable lens is not as good as the lens you are mounting, so sharpness will take a noticeable hit. I was experimenting with using my FL 135 for closeup work, and took it out. Ultimately I was not that happy with the image sharpness with the FL lens and went on to buy a modern macro. If you are adapting a different lens, particularly an FD lens your results may be better.Good Luck; it's certainly not an expensive experiment.Jerel

Q: 2. Does it cover full frame sony cameras?

A: As long as you are using full-frame EF lenses with your full-frame E-mount camera, you will be able to use the Fotodiox EF-E Vizelex Polar Throttle auto adapter without issue.

Q: 3. Hi,I just bought this adapter and it's awesome! But, is there a way to mount fl lens on this? I have two fl lenses and I am wondering how I can do this. In the instructions, there is a way to insert it but it not working.

A: This adapter can only be used to mount Canon FD mount lenses onto Canon EF mount cameras.

Q: 4. Will my Super Takumar 50mm f/1.4 clear the mirror on a Canon 1Ds II body? This is an early version lens with the lightly protruding rear lens element.

A: According to Fotodiox, this FotodioX Pro Lens Mount Adapter for M42 Lens to Canon EF-Mount Camera is compatible with the Canon 1DS II body.

Q: 5. Hi Everyone. Hyperfocal Distance??? I know the M series is a 1.6 crop, so if I use an EF 35mm 1.4 lens on this adapter, do I simply plug in 35mm @1.4 on M camera in hyperlocal calculator or do I convert it first to 56mm, then plug in @1.4 on M in the hyperlfocal calculator? Thanks friends!

A: It would be better to convert to to 56mm, then plug in @4 on M in the hyperfocal calculator.

Q: 6. does it support autofocus?

A: The FotodioX Canon EF Lens to Sony E-Mount Camera Vizelex Polar Throttle Auto Adapter supports autofocus and all camera to lens communication.

Q: 7. Won't using this mount cause a further reduction in field of view than that of the conversion from 35mm to APS-C? If so, what is the combined conversion factor when using this mount? (34mm - APS-C plus the factor caused by the mount.)

A: There is no further reduction in the field of view other than a 1.6x crop factor, being that a Canon FD lens would be considered full frame and a Canon EF-M mirrorless camera is APS-C.

Q: 8. Will this work on Sigma EF lenses?

A: No. will only adapt to G-Type Lens with Nikon F Mount to canon EOS bodies.

Q: 9. Will this work with blackmagic ursa 4.6k pro with ef mount?

A: Yes - I have the Ursa 4.6 with EF mount and use all of my Nikon lenses with this adapter - I actually have 2 of them.

Q: 10. What is the key difference between the FotodioX Pro adapter and regular adapter for adapting Leica R lenses to Canon EF mounts?

A: The pro adapter is made of brass and stainless steel, the regular is aluminum.