The NiSi 46mm PRO Protection Filter is a simple, clear filter with a 1x filter factor and is designed to provide general protection for your lens. This optically clear filter does not affect overall image quality while helping to prevent dust, scratches, moisture, and other substances from reaching or damaging your lens's front element. Additionally, one layer of NiSi Optical Nano Coating is applied to each of this filter's surfaces to create an improved beading effect when in contact with water for greater cleaning efficiency.

NiSi PRO Protection filters are constructed from optical glass for clarity as well as color fidelity. This filter features a brass filter ring to enhance durability and jamming prevention.

Clear Protective Filter    Prevents Damage to Lens    1x Filter Factor, No Exposure Change    No Effect on Image    NiSi Nano Optical Coating    Optical Glass Construction    Brass Filter Ring    46mm Front Filter Threads    Plastic Case

Clear filter offers general protection for your lens.

Does not require adjustments to exposure while in use.

Creates no additional coloration or contrast.

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

NiSi Optical Nano Coating creates an improved beading effect when in contact with moisture for greater cleaning efficiency.

Constructed from optical glass for clarity.

Brass filter ring helps to prevent jamming and provides additional strength.

Side knurling to provide a more textured grip when mounting or removing filter from a lens.

46mm front filter threads allow for use with other filters.

Plastic case for storage and transport.

Related Questions and Answers

Q: 1. IS THIS COMPACTABLE WITH S5 HOLDER?

A: This filter is only compatible with the NiSi S6 holder.

Q: 2. Can a threaded circular polarizing filter be mounted on top of this clear protective filter? If yes, what size threads of the polarizing filter will fit the inside threads of this protective filter? Would it be advisable not to layer or stack these two filters? Is it best to mount only the polarizing filter when I want that effect and then when not using the polarizing filter, remount the protective filter?

A: As the Olympus 40.5mm PRF-D40.5 PRO Clear Protective Filter has 40.5 mm front filter threads, yes, you may mount a 40.5 mm filter onto the front of the Olympus protective filter. It is typically personal preference whether or not to stack filters. Some people never remove the protection filter and stack filters, while some purists prefer to use the fewest pieces of extra optics on the front of the lens' optical formula, saying you may get internal flare/glare and reduce sharpness. I would say if you plan to own both filters, simply do your own test with both filters on and with the polarizer only and see if you can personally see a difference. You can then use that information to decide if it is necessary to continuously swap filters or if you will stack the filters.

Q: 3. 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: 4. will this fit on Canon RF 200-800mm f/6.3-9 IS USM Lens (Canon RF)?

A: Yes, the Chiaro Pro 95mm 99-UVBTS Brass UV Filter will fit on the Canon RF 200-800mm f/6.3-9 IS USM Lens (Canon RF). The lens front thread diameter is 95mm.

Q: 5. Does this filter fit onto a lens Rodenstock HR Digaron-W 32mm?

A: Yes, the Chiaro Pro 86mm 99-UVBTS Brass UV Filter, BH # CHT99UVBTS86 is compatible with the Rodenstock HR Digaron-W 32mm.

Q: 6. does this lens keep the water out in underwater photography ?

A: no. I got the filter to use with an Olympus tg-3, and water dribbled in between the lens and the filter. get the filter to protect the lens above water, but remove it for under water photography.

Q: 7. How to mount protective olympus filter onto TG4?

A: You would need the Olympus CLA-T01 Conversion Lens Adapter. See the link here.

Q: 8. Will this filter fit on the sigma 35 mm f/1.4?

A: Yes. As the Sigma 35mm f/1.4 DG HSM Art Lens has 67mm filter threads, yes, the Chiaro 67mm 99-UVBTS Brass UV Filter, B&H # CHT99UVBTS67, would be compatible for use with the Sigma 35mm f/1.4 DG HSM Art Lens.

Q: 9. Can this be used on a Nikkor z 24-50 mm lens? Also, is 52 mm the right size?

A: Yes, the Chiaro Pro 52mm 99-UVBTS Brass UV Filter can fit on the Nikon Z 24-50mm lens.

Q: 10. Will this fit on the 200/500 nikon lense

A: Yes, the Chiaro Pro 99-UVBTS filter for 95mm filter threads will work great with the Nikon 200-500mm f/5.6E ED VR lens.