The 100 x 100mm XS-Pro MRC-Nano 815 from B+W is a neutral density filter with a 32,768x filter factor that provides a 15-stop exposure reduction. It is compatible with a B+W 100mm Filter Holder and its 4.5 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed than normally required. By increasing your aperture or slowing your exposure time, you can control depth of field and convey movement more easily. Neutral density filters do not affect the coloration of the image and are ideal for pairing with other filters.

To prevent internal ghosting and reflections, each glass surface includes multiple layers of antireflection coating. This multiresistant coating (MRC) also offers greater protection to the filter substrate and helps it to stay clean for longer than with uncoated filters. The Nano coating associated with XS-Pro filters provides an additional eighth layer over the MRC, resulting in an improved beading effect when in contact with water for greater cleaning efficiency.

B+W filters are constructed from SCHOTT glass for increased optical clarity as well as color fidelity and measure 2.0mm thick.

4.5 Optical Density    MRC Multiresistant Nano Coating    SCHOTT Glass Construction    Metal Case    Allows Reduced Shutter Speed    Allows Wider Aperture

4.5 neutral density filter darkens the image, allowing you to photograph with a longer shutter speed or wider aperture than normally required

Providing a 15-stop exposure reduction, this filter allows you to control depth of field and convey movement more easily

Filter does not affect coloration of the image and is ideal for use with other filters

Multi-coated to prevent internal ghosting and reflections

Constructed from SCHOTT glass for optical clarity

Metal case included for storage and transport

Related Questions and Answers

Q: 1. Is this filter compatible with Lee Filters Foundation Kit (Standard 4x4") B&H # LEFK ?

A: Yes, this filter will fit with the Lee Filter Foundation Kit.

Q: 2. Will it fit in Lee 100 and Nisi V6 filter holders?

A: Yes, they are all 2mm thick and will work with each other.

Q: 3. I have a 32-64mm Fuji GFX zoom lens on a GFX 50R. Can this filter be used at full wide angle without vignetting with this lens? Thanks.

A: The B+W 77mm XS-Pro Digital ND Vario MRC-Nano Filter will not vignette the Fuji 32-64mm lens. This is because the front of the filter is 82mm. By having a larger front than the mount, it reduces the risk of vignetting on wide angle lenses.

Q: 4. What is the resolving resolution on these filters?

A: where did ou read about this? seems not related

Q: 5. Preventing light leaks: Gasket available? Seal built in to holder?

A: you can try this BH #FOFG3P85

Q: 6. Hi,I was wondering 2 things about this filter:* does it have hard stops ?* what is the size of the front filter ? is it 62mm ? thanks

A: This B+W 62mm XS-Pro Digital ND Vario MRC nano Filter has hard stops from +1 to +5 stops. The front thread size on this filter is 67mm; in order to avoid vignetting, the front filter thread is oversized.

Q: 7. is this filter compatible with nisi v5 100mm system?

A: Yes the B+W 100 x 100mm XS-Pro MRC-Nano 803 Solid Neutral Density 0.9 Filter is compatible with the NiSi V5 Pro 100mm Filter Holder Kit at 100mm x 100mm, and 2mm thick.

Q: 8. Can I mount this filter on my zeiss planar f 1.4 50 mm ?

A: If you own the Zeiss Planar T* 50mm F/1.4 ZF.2 Lens, B&H # ZE5014ZF2N, which has 58mm filter threads, yes, the B+W 58mm XS-Pro Digital ND Vario MRC nano Filter would be compatible for use with your lens.

Q: 9. This is because I use it with the H & Y magnetic frame so that my filter cannot be sticked with sponge (for prevent light leakage). Do you know that this filter has sticked sponge?

A: I'm sorry but this filter does not have foam on the edges.

Q: 10. Can other filters screw on to the Nano filter to stack filters?

A: Unfortunately this filter is too thin to stack any more filters on top of it.