The 46mm NXT Plus Circular Polarizer Filter helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface. The light from the sun naturally becomes partially polarized due to reflecting off electrons in air molecules, causing the light to scatter into what appears as haze. A polarizing filter arranges and filters this directionally polarized light perpendicularly to the reflected light, allowing for the absorption of much of this light. This results in a noticeable reduction of glare and reflections from non-metallic surfaces and an increase in the saturation of skies and foliage.

A circular polarizer only differs from a linear polarizer in that it contains a quarter wave plane in addition to the linear polarizing filter. The addition of this quarter wave plane is to circularly polarize the linearly polarized light for the use of auto focus and exposure functions. Due to how the light is broken down and filtered with a linear polarizer, auto focus and exposure accuracy become skewed during use. When the light becomes circularly polarized, it permits the use of these functions.

This filter is constructed from optical glass for clarity as well as color fidelity and features an aluminum-alloy filter ring that can be rotated in order to adjust the intensity of the polarization effect. To prevent internal ghosting and reflections, each glass surface includes five layers of anti-reflection coating. An additional hydrophobic coating results in an improved beading effect when in contact with water for greater cleaning efficiency.

Circular Polarizer Filter    1.7x Filter Factor, +0.8 Stop    Helps to Eliminate Reflections and Glare    Reduces Haze in Landscapes    Greater Color and Tonal Saturation    Multicoated    Anti-Reflective and Hydrophobic    Optical Glass Construction    46mm Front Filter Threads    Knurled Sides, Plastic Case

Helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface.

Polarizing filters arrange, and filter, directionally polarized light perpendicularly to the reflected light, allowing for the absorption of much of the light.

Clears up haze in distant landscapes and provides more saturated, vivid colors.

Strongest effect when used at a 90° angle from the sun.

Circular polarizers are ideal for use with digital cameras and autofocus lenses where a linear polarizer will often disrupt auto exposure and focus features.

1.7x filter factor reduces exposure by 0.8 stop.

Multicoated to prevent internal ghosting and reflections while providing an improved beading effect with water for more efficient cleaning.

Aluminum-alloy filter ring for durability while remaining lightweight.

Filter ring can be rotated to adjust the intensity of the polarization effect.

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

Top knurling to provide a more textured grip when mounting or removing it from a lens.

Constructed from optical glass for clarity and color fidelity.

Plastic filter case for storage and transport.

Related Questions and Answers

Q: 1. What's the difference between Hoya filters and Tiffen filters (the price)?

A: It depends on the particular filter you are looking at. If it is thinner to reduce vingetting with wide angle lenses. If it has any multi coatings to reduce reflections and ghosting. If it has any special coatings such as the nano coatings that beads water and makes it easier to clean.

Q: 2. Is this 46 mm filter compatible with the 800mm PF lens Z Mount?

A: No, the Hoya 46mm NXT Plus Circular Polarizer Filter will not work with the Nikon NIKKOR Z 800mm f/6.3 VR S Lens. That lens can only use the Nikon C-PL460 Slip-In Circular Polarizer, BH #NICPL460 (https://bhpho.to/3HdDhfm).

Q: 3. Does is it fits the canon RF 100-500mm ?

A: The Hoya 77mm NXT Plus Circular Polarizer Filter does fit the Canon RF 100-500mm f/4.5-7.1 L IS USM Lens.

Q: 4. Will this filter work with the Sensei step-up ring? 62mm-67mm to be precise.

A: I haven't tried it but I imagine it would.

Q: 5. Thickness of this filter when it is alone and after it is mounted? BP @ WC

A: The thickness of the filter frame is 5mm (not including the threads that attach to the front of the lens).

Q: 6. Can this be used with a Canon Powershot SX420 is ?

A: No, this filter is not compatible with the SX420.

Q: 7. Why won’t this filter tighten on my lens? It’s a 62mm and that what my lens takes.

A: The loose portion is the adjustment ring for polarization. Otherwise the filter will fit tight to your filter thread on the lens.

Q: 8. Is this made of alumn. or brass ???

A: The Hoya 72mm NXT Circular Polarizer Filter is manufactured from aluminum.

Q: 9. What country are Hoya filters made in?

A: The Hoya 67mm NXT Circular Polarizer Filter is manufactured in the Philippines.

Q: 10. Hello!Could you please tell me if this filter is compatible with this lens: http://www.bhphotovideo.com/c/product/892390-REG/Sony_selp1650_16_50mm_F_3_5_5_6_Power_Zoom.htmlThank you!

A: Yes, the Hoya 40.5mm NXT Circular Polarizer is compatible with the Sony 16-50mm f/3.5-5.6 lens.