The 7-stop, 72mm Edge ND Filter from IRIX is an essential tool for landscape and long-exposure photography. This filter has an optical density of 2.1 and reduces incoming light by 7 stops, allowing more controlled motion blur and depth of field manipulation.

This optical glass filter features waterproof and oil-repellent nanocoating to prevent stains and fingerprints, allowing it to be used in extreme weather conditions. The low-profile frames and knurled edges provide excellent grip and functionality with a reduced potential for vignetting with wide-angle lenses.

2.1 Optical Density    Multicoating and Resistance Coating    Darkens Entire Image Area    Allows Reduced Shutter Speed    Allows Wider Aperture    Includes Filter Case

Related Questions and Answers

Q: 1. What size lens cap would I need with this filter?

A: This Urth 72mm ND8-128 Variable ND Lens Filter Plus+ (1 to 5 Stop) has a 72mm front thread, therefore it can accept a lens cap such as the Sensei 72mm Center Pinch Snap-On Lens Cap, BH # SELC72. https://bhpho.to/3lKGGu9

Q: 2. Is this filter compatible with the fixed lens on the Leica Q?

A: Yes, the Fujifilm 49mm slim protector will work with the Leica Q.

Q: 3. If I mount this filter holder on an Irix 15mm f2.4 lens using the Irix adapter for this lens (lens hood mount) and an Irix circular polariser in the lens filter screw mount, can I also use a 100x100mm 2mm thk ND filter in the holder?

A: If the circular polarizing filter has front filter threads, you would be able to attach the filter holder and use an ND filter in the holder.

Q: 4. Do the marks correspond to fixed stop values to allow calculating exposure settings?

A: The "Marks" correspond to approx 1/2 stops.

Q: 5. Are Fuji filters brass or aluminum?

A: The FUJIFILM 49mm Protector Filter is aluminum.

Q: 6. Is the front of the filter threadable ?

A: Yes, the filter feature front threads

Q: 7. Hi. Can this filter be used on a Leica 50mm APO-Summicron-M ASPH f/2.0 lens? Thank you.

A: The lens has a 39mm filter thread. This filter would not be compatible. B+W makes the same filter in 52mm. If you use a 39-52mm step up ring, then you will be able to use this filter on the Leica lens.Here is the step up ring: http://bhpho.to/1u0UKvfHere is the filter: http://bhpho.to/1qoJGa9

Q: 8. Are the stops marked in any way with some physical feedback, like a loud click or a hard stop when rotating?

A: The NiSi True Color ND-Vario Drop-In Filter for ATHENA Lenses (1 to 5-Stop) has precise gear control for adjusting, which does not make a sound, but would be clear in the live view while in use.

Q: 9. Is this an ND filter?

A: The Fujifilm 49mm Protector Filter is not a ND filter. This filter is clear and is meant only to protect the lens from dust and physical damage.

Q: 10. Is there a case available for these yet? Looking to clip somewhere between 3 and 7 of them to my belt for gimbal work.

A: No, there is not currently a NiSi branded case for the NiSi Full Spectrum FS ND Drop-In Filter for ATHENA Lenses (7-Stop). However, you could consider using a case like the ARRI Camera Assistant Belt Pouch (Large), BH #ARK20013016, or the WANDRD D1 Fanny Pack (Wasatch Green), BH #WAD1FPWG2, to carry several of the filters.