This 3-stop Rear Lens Filter for Select Canon-Mount Cameras from Kase secures magnetically to your camera mount, and your lens then mounts on top. The filter sits securely between the camera and lens.

0.9 Optical Density    Multicoated    Multi-Coated Tempered Optical Glass    Lightweight and Durable

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Related Questions and Answers

Q: 1. I read it works on aps-c cameras with E-mount but not on fullframe. However, will it work on a Sony a7s fullframe if I use the camera in aps-c mode with x1.5 crop ?

A: Yes, it will work on the A7S in crop mode.

Q: 2. I see on a lot of videos that the EF-M2 fits on the GH5. I was told this one doesn't fit in the Q&A. Why doesn't it and what model does so I can attach my Canon lenses?

A: This adapter is not for the micro four thirds mount that the GH5 has. It is for attaching a Canon EF lens from their DSLR's onto the Canon EF-M mirrorless cameras.

Q: 3. What version is this? Viltrox's site show's a newer version with the usb on the inside.

A: This is the second version of the adapter which does have the USB port inside it. Our image is incorrect and we're working on correcting it.

Q: 4. Will this work on FX3/FX30 video mode with Canon EF Lenses and if yes is there a list of compatible lenses?

A: The Viltrox EF-NEX IV Lens Mount Adapter for Canon EF-Mount Lens to Select Sony E-Mount Cameras is compatible with the Sony FX3 Full-Frame Cinema Camera, Sony FX30 Digital Cinema Camera, and all Canon EF lenses.

Q: 5. Will this work with the Sony a1?

A: This Lens Mount Adapter is designed to work on the the Sony A1 because it has an E mount.

Q: 6. I would like to use this collar on my EOS R7 with the RF 100-400 5.6-8?

A: No, the Neewer Rotatable Lens Collar for Select Canon Cameras is not compatible with the Canon EOS R7 Mirrorless Camera (BH #CAER7).

Q: 7. Will this work on a full frame Sony sensor?

A: The adapter will cover the full frame of sony sensors, it is designed to couple electronicaly to these cameras Sony NEX-5C, C3, 5N, F3, 5R, 6, 7, FS700, VG20, VG900, and Sony Alpha a7-series cameras

Q: 8. Can you use Canon M50 native glass on this speed booster?

A: No, this is for Canon EF/EFS lenses to the M50.

Q: 9. HI. Will this work on Canon M6 mark2? Will this turn my EF 24mm 1.4 into a 17mm 1.4 with accurate focus and servo tracking? Thanks for any help!

A: Yes, it will work with your M6 mk2. The 24mm will have an effective angle view of a 27mm and the 17mm will be 19mm. You will also gain 1 fstop of light.

Q: 10. How does this adapter compare to the Metabones version?

A: When looking at the reviews for the Viltrox EF-EOS M2 0.71x Lens Mount Adapter for Canon EF-Mount Lens to Canon EF-M-Mount Camera, one knows that this Viltrox adapter needs to always be adjusted, to give the user proper focus "FIRST THING YOU NEED TO DO IS ADJUST INFINITY FOCUS. Focus from the factory WILL be off. You need to take about 15 minutes to set up the infinity focus. The glass element group is meant to be turned. Take a microfiber cloth and grip both sides of the front element and turn it clockwise to push infinity farther. The Metabones adapter will give one excellent focus with generaly no adjustment needed.