The 49mm Neewer HD Variable ND Filter 49mm 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. Are these stackable ? For example can I use a set of these to use 82mm filter on my 46mm lens ?

A: Yes you can stack them and use a 82mm filter on a 46mm lens. The only downside would be that they are bulky.

Q: 2. For this price does it come with the extender and the ND filter?

A: Yes. The price of $399 (dec 4th) is with the filter. Note: "Style: With Drop-In Neutral Density Filter"

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

A: I'm sorry, no.

Q: 4. Does this cause vignetting when used on the Sony 16-35mm G PZ lens?

A: The H&Y Filters RevoRing 52-72mm Variable Adapter for 77mm Filters should not cause any vignetting when used with the Sony 16-35mm lens.

Q: 5. filter itself? Is it a nano coated? Any details on color cast (blue)?

A: It is not nano coated and there is a slight blue cast on the upper range.

Q: 6. 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: 7. So if I buy this set, would I be able to use it with my lenses 57mm all the way to 82mm in my R5 ?

A: Yes you could stack these and place an 82mm filter on a 37mm lens. You can also use them one at a time for a smaller change for example to use 62mm filter on a 58mm lens.

Q: 8. Does this include, or even support, the tripod "foot" (that comes with the $164 version, but not the $99 version)?

A: No.

Q: 9. Will these work with a filter holder like a Nisi V6 or V7? That is, can I use the 82mm adapter to put the Nisi holder on a range of lenses?

A: The H&Y Filters RevoRing Variable Adapter Bundle (3 Adapters) are compatible with screw-in filters only.

Q: 10. 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.