The 77mm Neewer HD Variable ND Filter 77mm 3-7 Stopsis 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. Advanced cutting-edge technology allows you to say goodbye to the X-cross mark on images and other common problems that plague other variable ND filters for wide-angle and telephoto lenses. With double-sided and multilayered nano coatings, the minimum light reflection rate is less than 0.1%. This reduces glare and ghosting, blocks UV rays from 300 to 380nm, and ensures accurate color reproduction. The filter is water, oil, scratch, and dirt-proof.

Variable 0.9 to 2.1 Optical Density    Double-Sided, Multilayer Nano Coating    Waterproof and Scratch Resistant    No X-Cross Mark Image Defect

Related Questions and Answers

Q: 1. Is there a way to secure the adapter when using larger (cinema) lenses?

A: While the Meike Drop-In Filter Mount Adapter EF to EOS-R with Variable ND Filter could not be secured, you would have to secure the lens itself.

Q: 2. Will it work on the Canon EOS C70

A: This would work on the C70.

Q: 3. How many stops of a ND filter is it?

A: Between 1.5 to 9 stops for the ND filter

Q: 4. Will this work with the Red Raptor VV ?

A: Yes, the Canon Drop-In Filter Mount Adapter EF-EOS R will work with the Red Digital camera. We suggest using the following and using 4x4 filters for a more flexible workflow Canon Mount Adapter EF-EOS R BH #CAMAEFRF • MFR #2971C002 https://www.bhphotovideo.com/c/product/1433717-REG/canon_mount_adapter_ef_rf.html

Q: 5. Does this speedboost the lens or its a regular adapter?

A: The Canon Drop-In Filter Mount Adapter EF-EOS R with Variable ND Filter is not a speed booster adapter.

Q: 6. Can it be used together with other adapters for EF to GFX?

A: Yes, mounting is possible when using more than one adapter. However, from our tests, the results have been wildly variable - from inoperability to semi-operability based on the make of the adapter, the firmware versions employed by lens, camera, and adapter, etc. As such, we cannot fully endorse such a combination.

Q: 7. 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: 8. can this be combined with the Canon control ring mount adapter EF-EOSR?

A: No,the Meike Drop-In Filter Mount Adapter EF to EOS-R with Variable ND Filter does not work with another lens adapter. It attaches direct to a Canon RF mount camera and the other side is for EF mount lenses.

Q: 9. 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: 10. Is there a non-variable ND filter option that can be dropped in? VND can cause some really weird looks across the frame and the more I use them, the more I dislike them.

A: You can use this polarizer in the adapter. https://www.bhphotovideo.com/c/product/1434114-REG/canon_3445c001_drop_in_circular_polarizer_filter.html This clear filter is used when there is no filter present to prevent dust getting into the camera. https://www.bhphotovideo.com/c/product/1434115-REG/canon_3444c001_drop_in_clear_filter_a.html