The B+W 46mm T-PRO UV Filter is a general-use, clear filter designed to absorb ultraviolet light and reduce the bluish cast of daylight. Aside from the reduction of unwanted blue casts, no additional coloration or contrast is created, and adjustments to exposure are not required while using this filter. To prevent internal ghosting and reflections while providing over 99.8% light transmission, each glass surface includes multiple layers of anti-reflection coating. This Multi-Resistant 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 this filter 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 and color fidelity. This filter features a thin, titanium-colored brass filter ring to minimize the potential for vignetting while enhancing durability and preventing jamming.

This UV filter is also useful as a general protective filter to leave on lenses at all times. Such filters help to keep dust and moisture from reaching your front lens element and provide additional protection in case of drops or situations where scratching could occur.

Clear Protective Filter    Absorbs Ultraviolet Light    Reduces Bluish Cast of Daylight    1x Filter Factor, No Exposure Change    MRC Multi-Resistant Coating    Nano Coating    Slim, Titanium-Colored Brass Filter Ring    46mm Front Filter Threads    Plastic Case

Absorbs UV light and reduces bluish cast of daylight.

Does not require adjustments to exposure while in use.

Multi-coated to prevent internal ghosting and reflections while providing over 99.8% light transmission.

Nano coating provides an improved beading effect with water for more efficient cleaning.

Creates no additional coloration or contrast.

General protection filter reduces amount of dust, moisture, and scratches reaching lens elements.

Slim, titanium-colored brass filter ring helps to prevent vignetting and jamming and provides additional strength.

Plastic case for storage and transport.

Related Questions and Answers

Q: 1. Why would anyone want to block 10% of the light from entering their lens?

A: You wouldn't, Chiaro does have a higher light transmission filter. A 95%, 98%, and a 99%. High-quality filters will cost more.

Q: 2. what does the (c) mean?

A: The 'C' is a designation for the optical glass used in this filter. It denotes glass that has the UV properties in the glass itself, not just in the multi-coatings.

Q: 3. Will this filter work on a Mirror lens?

A: Sorry, I don't know

Q: 4. Will this fit the canon RF 50mm f/1.8 STM Lens?

A: Yes, the Chiaro Pro 43mm 99-UVBTS Brass UV Filter can fit the Canon RF 50mm f/1.8 STM Lens.

Q: 5. is this filter made in China just as good as those made in Germany?

A: Where a filter is made is not as important as who makes it. The Chiaro Pro 77mm 99-UVBTS Brass UV Filter is certainly as good as filters made in Germany.

Q: 6. Does this filter work well with Sigma 17-50/2.8 OS lens? Thanks for help.

A: You shouldn't have any problems with this combination.

Q: 7. Will there be enough clearance between the filter and front element of the Rokinon 12mm f/2.0 NCS CS Lens when mounted? If not, do you have any recommendations? Thanks!

A: There is plenty of clearance to put a filter on this lens.

Q: 8. this filter accepts a Hood?

A: The filter does have front threads to either stack filters or utilize a lens hood that would thread into the front of the filter.

Q: 9. Will this filter work on the Nikon coolpix B 700?

A: No

Q: 10. Does this filter have threads for stacking additional filters?

A: Yes. This filter has from threads and can be stacked with other filters.