This 49mm B+W MRC Nano 806 ND Filter 49mm 6-Stopfrom B+W MRC Nano 806 ND Filter 49mm 6-Stopis a precision-crafted neutral density filter that reduces an exposure by 6 stops for finer control over exposure settings. By increasing the density evenly across the entire image area, the depth of field can be reduced to help isolate the image subject, even in brightly lit conditions. In addition, the shutter speed can be reduced to increase image blur and enhance the sense of movement, or smooth out the look of rushing water.

All filters of the new Master filter line are equipped with the exclusive Multi-Resistant Coating (MRC) nano premium coating technology. This high-quality broadband coating is applied on both sides and enhances the optical imaging properties, allowing uniform and increased transmittance across the entire light spectrum to be achieved, with minimal physically induced remaining reflection. The nano all-around protection on the filter glass also ensures increased scratch resistance and extremely fast, easy cleaning, providing a long filter life. The slim filter ring design is compatible with wide-angle lenses with an equivalent width of a 17mm full-frame lens. The top knurling is redesigned for enhanced gripping.

Optical Density 1.8    MRC Nano Coating    SCHOTT Optical Glass    Brass Ring with Enhanced Top Knurling    Darkens Entire Image Area    Allows Reduced Shutter Speed    Plastic-Free Packaging

Related Questions and Answers

Q: 1. I regard to the question about the front threads:Note that the specs supplied by B&H say that the mfg has not provided that info. Upon receiving this filter hoping I could add the the Nikon R1C1 flash system to it (the reason I bought this unit instead of others that had no front threads) I can tell you that the threads are well over 77MM wide. I should have figured that out when the description states the filter is oversized.

A: The front threads are approximately 81mm on the XS-Pro 77mm Digital ND Vario. While it will not be possible to use the R1-C1 mounted on this filter, the flashes on the R1-C1 separate off the ring and the system comes with stands. You could mount the flashes onto stands and ultimately a tripod and light the subject in this manner, and just use the system without having the flash on the camera.

Q: 2. Will this filter fit into a tiffen 4x4 holder?

A: This filter is a 2mm filter. The Tiffen works with 4mm filters. This filter would be at risk of falling out.

Q: 3. Will this filter cause vignetting on the Canon RF 35/1.8 (using a Canon RP body)?

A: This filter would be specific to wide angle lenses, so it would not vignette on a lens like the Canon RF 35mm f/1.8.

Q: 4. How thick is this filter?

A: I don't have this filter. Not sure why I was asked by BH to answer the question. Sorry.

Q: 5. with an ultra-wide angle lens (i.e. Canon 16-35mm F4L with a full frame camera), do you get the dreaded X show up and if so at what density does it show up?

A: The X you can sometimes pick up in the image with a variable ND filter is caused most of the time by variable ND filters that go over 7-8 stops and lower quality ones.The B+W filter is fine. The one thing you might pick up is when set to the widest setting on that lens, 16mm you might pick up some vignette. And that is going to happen with that lens with most filters because of how wide it can go. The filter is designed with a thinner frame so it should be somewhat minimal.

Q: 6. I have a Sony A7S with Sony FE PZ 28-135mm f/4 G OSS Lens and shoot video. I like the flexibility of the variable ND filter especially as I often don't have time to change filters. Is this the best for exteriors?Thanks Andrew

A: It's that or a mattbox with ND, especially for shooting Log2 or Log3 at 1600 or 3200iso.

Q: 7. i have a question regarding this filter, do I need to use the lens hood for this filter, with the filter on the lends, the hood does not fit, is it ok to use the 24-70 2.8 70-200 2.8 17-35 2.8 24-120 4.0 lenses without hood, light will not stray inside the lens, with the ND filter on.? please respond. thanks. Ara

A: My best advice is to try a few shots with the hood on and off on each lens. The W.A. (17-35) will probably give the most trouble, but check the others as well.

Q: 8. Can someone explain the markings on the filter? Thanks

A: The markings are 1/2 stop increments. This helps you determine the proper exposure.

Q: 9. Does this filter have hard stops?

A: This filter provides a hard stop at the beginning and at the end of the stop rotation. Please keep in mind there is no D-click between stops.

Q: 10. Will it fit in Lee 100 and Nisi V6 filter holders?

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