The 105mm Haida NanoPro MC Circular Polarizer 105mmfrom Haida NanoPro MC Circular Polarizer 105mmhelps 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 and color fidelity. To prevent internal ghosting and reflections, each glass surface includes 10 layers of anti-reflection coatings, which also offer greater protection to the filter substrate and help keep it clean for a longer period of time. The Nano coating associated with the 105mm NanoPro MC Circular Polarizer Filter provides an additional layer that results in an improved beading effect when the surface comes in contact with water or oil, allowing for more efficient cleaning.

Circular Polarizer Filter    2.5x Filter Factor, +1.3 Stops    Helps to Eliminate Reflections and Glare    Reduces Haze in Landscapes    Greater Color and Tonal Saturation    Optical Glass Construction    Multi-Coated, Nano Coating    Aluminum-Alloy Filter Ring    105mm Front Filter Threads    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.

2.5x filter factor reduces exposure by 1.3 stops.

Multicoated to prevent internal ghosting and reflections.

Aluminum-alloy filter ring for durability while remaining lightweight.

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

105mm front filter threads allow for use with other filters.

Side knurlings to provide a more textured grip when mounting or removing it from a lens.

Constructed from optical glass for clarity.

Plastic filter case for storage and transport.

Related Questions and Answers

Q: 1. Is there a significant difference in the reduction of light pollution between the NiSi and Haida filters?

A: The Nisi and Haida light pollution filters are very similar.

Q: 2. Will this filter work with the original M10 system?

A: The Haida M10-II Drop-In 2-in-1 Circular Polarizer + Neutral Density ND 0.9 Filter (3-Stop) is compatible with the original Haida M10 Filter Holder.

Q: 3. Will this fit the Benro FH100M2 Filter Holder? If so, does it need the holder frame?

A: Yes, it will fit and it needs the filter holder frame.

Q: 4. Will this fit in Lee filter holder?

A: Yes, the Haida 100 x 100mm NanoPro MC Clear-Night Filter will fit in the Lee filter holder.

Q: 5. Does it have a hard stop at each side of the scale, so it won't rotate too much?

A: The Haida NanoPro Variable Neutral Density 1.2 to 2.7 Filter (77mm, 4 to 9-Stop) does not have a hard stop, but it's design allows for smooth transition between stops and stays in place.

Q: 6. What is the thread pitch of the 105mm filter? 0.75 or 1.00?

A: The Haida NanoPro MC Clear Filter (105mm) has a 0.75 pitch.

Q: 7. Can this filter resolve 50 megapixels from a medium format camera with no effect on image sharpness?

A: This filter would have no impact on the image sharpness.

Q: 8. is the level detachable? If so, can I still use the lens hood on my rf 24-105mm without the level?

A: The lever is detachable but the filter ring is too large to be used inside the Canon hood. A screw on hood could be used instead such as this: https://bhpho.to/35j7SrF

Q: 9. I assume to use this you have to rotate the whole mounting assembly. Yes? How easy is this to do? Does this scratch up the lens housing?

A: This filter is rotated in the holder and is smooth functioning and does not scratch the housing.

Q: 10. What does 1.25x filter factor mean?

A: A filter with a 1.25x filter factor reduces your overall exposure by approximately 0.3 stops.