The 82mm Neewer HD Variable ND Filter 82mm 3-7 Stopfrom Neeweris adjustable from 3 to 7 stops, with a rotating ring to reduce light intake and extend exposure time when shooting at slower shutter speeds and wider apertures. Perfect for capturing rivers, waterfalls, light trails, and other moving subjects with dynamic motion blur. The rotation range is limited to approximately 70°, and advanced cutting-edge technology lets you say goodbye to the X-cross mark on images and other common problems with variable ND filters for wide-angle and telephoto lenses. With 30 layers of nano coating, the minimum light reflection rate is less than 0.1%, which reduces glare and ghosting, and blocks UV rays from 300 to 380nm, while ensuring accurate color reproduction.

Variable 0.9 to 2.1 Optical Density    Double-Sided Multilayered Nano Coatings    Blocks UV from 300 to 380nm    Without Black X-Cross Shadow

Related Questions and Answers

Q: 1. Would this work with my old sigma 10-20mm 4-5.6 dc hsm and the new EOS R7? I only see the Sigma 10-20 3.5, on the compatibility list

A: The Sigma 10-20mm f/4-5.6 DC HSM lens is not compatible with the Canon Drop-In Filter Mount Adapter EF-EOS R with Variable ND Filter.

Q: 2. Will other brand EF lenses with autofocus continue to work with this adapter?

A: All EF lenses with autofocus Will work same way as on an SLR. The adapter only compensates for the shorter flange distance of the mirrorless body. in addition the filter slot makes easy to use one drop-in filter for every lens no matter the size of the front lens thread.

Q: 3. Are there any astrophotography filters that fir this filter system?

A: I'm sorry, no.

Q: 4. Is this compatible with RF lenses? If not has Canon mentioned if there will be an adapter for RF lenses on the R? And if not are there alternatives?

A: This is only for EF lenses. I am not aware of any alternatives.

Q: 5. How many stops of a ND filter is it?

A: Between 1.5 to 9 stops for the ND filter

Q: 6. Can we change lenses without removing the adapter? In other words can the adapter stay in the camera when change lens?

A: Yes, the lens can be removed from the Meike Drop-In Filter Mount Adapter EF to EOS-R with Variable ND Filter without removing the adapter form the camera.

Q: 7. The idea of a rear drop in filter holder is excellent. If you are using native R lenses, will there be a way to use a drop in rear filter feature? Funny that this feature would only apply to legacy glass.

A: No there is no option for that.

Q: 8. how bad is the vignette for ultra wide angle lens i.e. 11-24mm, 16-35mm?

A: If it is lens that covers a Full Frame Sensor, such as the Canon EF 11-24mm f/4L USM Lens B&H # CA11244LUSM, there should not be any vignetting. https://bhpho.to/2bPYxeO

Q: 9. Is this compatible with Komodo X?

A: Yes, the Meike Drop-In Filter Mount Adapter EF to EOS-R with Variable ND Filter is compatible with RED DIGITAL CINEMA KOMODO-X 6K Digital Cinema Camera (Canon RF) when used with EF lenses.

Q: 10. Will this work on a Komodo?

A: While Canon does not list compatibility of the Canon Drop-In Filter Mount Adapter EF-EOS R with Variable ND Filter with the RED DIGITAL CINEMA KOMODO 6K Digital Cinema Camera (Canon RF), as the camera uses the Canon RF lens mount, yes, the adapter should be compatible for usage on the Komodo 6K Digital Cinema Camera.