This 6-stop, 85 x 90mm Onyx ND Filter from Formatt Hitech features toughened mineral glass, which makes it highly resistant to drop and impact damage. Multi-coated, the filter is anti-reflective, waterproof, and resistant to common elements.

1.8 Optical Density    Multi-Coated    Toughened Mineral Glass    Anti-Reflective    Waterproof

Related Questions and Answers

Q: 1. Can this be stacked or combined with another B+W ND filter?

A: Yes it can be stacked with any 39mm filter.

Q: 2. Why is it MORE expensive to buy just the filter without the adapter included?

A: While Canon sets the MSRP on their items, as of the time/date of this reply, the cost of the Canon Drop-In Variable ND Filter A (1.5-9 Stop), BH #CADIVNDFA, and the Canon Drop-In Filter Mount Adapter EF-EOS R with Variable ND Filter, BH #CAMAEFRFDIND, on our website are currently the same price. However, I would simply recommend that if you are certain that you want the Variable ND Filter, as it is the most expensive of the filter options that are compatible for use with the Canon Drop-In Filter Mount Adapter EF-EOS R, I would simply recommend to purchase the adapter kit that comes with the Variable ND filter, the Canon Drop-In Filter Mount Adapter EF-EOS R with Variable ND Filter, BH #CAMAEFRFDIND.

Q: 3. hi B&H, Where is this filter made? and what type of optical glass used?

A: According to our records, the Urth ND2-400 (1-8.6 Stop) Variable ND Lens Filter (43mm), BH #URVND24004 is made in China. Please note that this is subject to change at any time.

Q: 4. Does anyone knows what size is the larger diameter size of this filter the top part, not the 82mm the other size?, need to know to get a cap for it

A: The Urth ND2-400 (1-8.6 Stop) Variable ND Lens Filter (82mm) has a front threading of 82mm. These Urth filters have the same size threading front and back for easy stacking and lens cap use.

Q: 5. Up to how many stops can it provide?

A: The headline and specs both say 1.5 to 9 stops.

Q: 6. Is this filter coated?

A: According to the manufacturer, the Urth ND2-400 (1-8.6 Stop) Variable ND Lens Filter (58mm) features an 8-layer nano coating.

Q: 7. will this adapter ring work with the lee 100mm system?

A: Yes, this adapter is designed for the LEE 100mm system.

Q: 8. I current have 55mm F-Pro Kaesemann High Transmission Circular Polarize MRC Filter, can I stack this ND filter on top of the current Polarize filer ?

A: yes you can stack , I would not recommend it

Q: 9. What size is the outside thread for a cap?

A: The front of this filter has a 46mm thread as well as the rear threads.

Q: 10. I think I have seen some VND's have a total size larger than its threading part, which ends up blocking the ability to mount a lens hood. Does the size of this filter prevent the mounting of a lens hood?

A: Most Variable ND filters have a larger outer diameter than the thread in size. Urth ND2-400 (1-8.6 Stop) Variable ND Lens Filter (58mm) has a front and mount thread of 58mm. However, the outer diameter of this filter is 62mm therefore if your lens hood is not wide enough it may not fit with this filter mounted on your lens.