This 52mm MRC Nano Master #806 ND Filter from B+W is 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. How smooth is the rotation ring?

A: The rotation ring on this filter moves easily and smoothly--much better than most variable ND filters.

Q: 2. I purchased this filter from you earlier this month. The filter ring is oversized . Can you recommend a lens cap that would work with this filter? Thank you. - Michael

A: The front filter thread size of the B+W 72mm XS-Pro Digital ND Vario MRC nano Filter is 77mm. As such, any 77mm lens cap should fit onto the filter. If you need a particular recommendation, then I would recommend the Sensei 77mm Center Pinch Snap-On Lens Cap, B&H # SELC77, for your stated needs.

Q: 3. Does the 95 mm filter have front threads? (It appears that it does.)

A: Yes, the B+W High-Transmission MRC-Nano Master Circular Polarizer Filter (95mm) has front thread.

Q: 4. Does the 112mm CPL work on Canon RF 100-300mm f/2.8L IS USM lens?

A: Yes, the B+W Master High-Transmission Kaesemann Circular Polarizer MRC Nano Filter (112mm) will work with the Canon RF 100-300mm f/2.8 L IS USM Lens (Canon RF), BH #CA10030028RF.

Q: 5. Can the filter be used with a step down/up ring for a 72mm lens size?

A: B+W High-Transmission MRC-Nano Master Circular Polarizer Filter (77mm) BH #BWCPHTM77 can be used with 72-77mm Step-Up Ring for a 72mm lens size.

Q: 6. What is the difference with the old one B+W 77mm Kaesemann XS-Pro Circular Polarizer MRC Nano Filter? Is it similar?

A: The B+W High-Transmission MRC-Nano Master Circular Polarizer Filter (72mm) has improved coatings and better light transmission than the B+W 77mm Kaesemann XS-Pro Circular Polarizer MRC Nano Filter.

Q: 7. 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: 8. Where are these manufactured? How many stops do you lose? Is it indexed as you turn the circular polarizer so you can understand you're settings in some manner?

A: As per our records, the B+W High-Transmission MRC-Nano Master Circular Polarizer Filter is made in Germany. Please note that this information is subject to change at any time. While there are no index marks on the filter, it does reduce the light by approximately 1.5 stops.

Q: 9. This filter has a 72mm filter thread. So, is it same to assume that a lens cap will also be 72mm?

A: That's correct, Lenscap is 72mm. This filter lives on my camera almost permanently. Worth every cent!

Q: 10. How about thickness of 72mm XS-pro Digital ND Vario MRC-Nano? Is the thickness double as XS-Pro ND non-Vario one?

A: Since we are not sure of the thickness you are interested in and the second filter you are asking about, please email us at prophoto@bhphoto.com.