This 58mm NanoPro Magnetic Variable ND 2-Filter Kit from Haida combines a pair of variable neutral density filters with a magnetic filter ring for a fast density adjustment range from 2- to 9-stops. The aircraft-grade aluminum ring screws onto the 58mm front filter thread of your lens, allowing either the 2- to 5-stop filter or the 6- to 9-stop filter to be attached or exchanged in just seconds. The filter ring features front filter threads, allowing it to stay on the lens and have a lens cap attached when not in use.

Made of multicoated optical glass, these variable filters allow exposure to be more fully controlled, creating longer shutter times for increased blur when shooting water and moving subjects. Also, adjusting the lens aperture allows control over the depth of field.

The quick operation of this magnetic filter kit allows landscape, macro, and other photographers to adjust exposure quickly while working under changing lighting conditions.

Note: The NanoPro Magnetic Interchangeable Variable ND 2-Filter Kit is an independent magnetic system that is not compatible with other Haida magnetic filter systems or with magnetic filter systems from other brands.

0.6 to1.5 & 1.8 to 2.7 Optical Density    2- to 5- & 6- to 9-Stop Filters    Multicoated Optical Glass Construction    Magnetic Interchangeable Mounting System    Darkens Entire Image Area    Greater Control over Exposure Settings    Allows Reduced Shutter Speed    Allows Wider Aperture

• Magnetic interchangeable filter ring
• Double-threaded aluminum filter ring accepts front lens cap
• Rotate filter ring to adjust the density effects
• No X pattern, vignetting, or added color cast
• For still photography and video

Related Questions and Answers

Q: 1. Does it have positive stops, detents, at each of the stops?

A: The K&F Concept Variable Fader ND2-ND400 Filter (62mm) doesn't have detents; it has markings for the stops on the edge of the filter.

Q: 2. Would this fit or which will fit a Sony A7 IV 28-70mm Lens?

A: You would need the 55mm version of the K&F Concept Variable Fader ND2-ND400 Filter (72mm).

Q: 3. Do you know if there is a Matte box that can be used in conjunction with this?

A: In terms of the Freewell V2 Magnetic Hybrid Variable ND with Circular Polarizer Filter (3 to 7-Stop), You will not be able to use a screw on Matte box however you can use a universal matte box that utilizes a rail system.

Q: 4. Is this the K&F filter with click stops @ each setting??

A: No, these filters don't have click stops.

Q: 5. What is the frequency response of the K&F Concept Variable Fader ND2-ND400 Filter (40.5mm)?

A: Unfortunately, the specs of the K&F Concept Variable Fader ND2-ND400 Filter (40.5mm) do not list frequency response. The specs we do have is that if you turn the filter you can change the density of the filter from 1 to 8.6 stops.

Q: 6. What size lens cap fits this?

A: A 69 or 70mm push on cap should fit.

Q: 7. Is it best to put this VND on before or after a mist filter?

A: It generally does not matter if you put the K&F Concept Variable Fader ND2-ND400 Filter (82mm) on before or after a mist filter, it can come down to preference.

Q: 8. Where is this filter made?

A: As per our records, this filter is made in China. Please note that this is subject to change at any time.

Q: 9. Does this filter have nano coating on outer facing surface that is hydrophobic?

A: Yes, the Freewell V2 Magnetic Hybrid Variable ND with Circular Polarizer Filter (3 to 7-Stop) has hydrophobic coating.

Q: 10. Is it only magnetic or is it like the Helix ones that also click into place with a small turn?

A: The Freewell V2 Magnetic Hybrid Variable ND with Circular Polarizer Filter (3 to 7-Stop) is magnetic only.