This Haida Drop-In Neutral Density and Circular Polarizer Filter combines a solid neutral density effect with a circular polarizer effect. It is mounted within a drop-in assembly that is made specifically to fit between a separately available Haida M10 Filter Holder and an adapter ring for the filter holder. The geared filter ring assembly's external dial allows for the independent rotation of the circular polarizer filter to adjust the intensity of its effect.

When in use, this filter's 64x filter factor provides a 6-stop exposure reduction. Its 1.8 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed than normally required. By slowing your exposure time or increasing your aperture, you can control depth of field and convey movement more easily. Simultaneously, this filter can help 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 this Haida Drop-In Neutral Density 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.

Neutral Density and Circular Polarizer    Drop-In, Fits Haida M10 Filter Holder    64x Filter Factor, 6-Stop    Reduce Shutter Speeds, Widen Apertures    Greater Control over Exposure Settings    Helps to Eliminate Reflections and Glare    Reduces Haze in Landscapes    Greater Color and Tonal Saturation    Optical Glass, Multi and Nano Coating    Plastic Case

Drop-in neutral density and circular polarizer filter that is compatible with separately available Haida M10 filter holder

1.8 neutral density filter effect darkens the image, allowing you to photograph with a longer shutter speed or wider aperture than normally required

Providing a 64x filter factor with a 6-stop exposure reduction, this filter allows you to control depth of field and convey movement more easily

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

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

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

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

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

Constructed from optical glass for clarity as well as color fidelity

10 layers of anti-reflection coatings on each glass surface as well as a Nano coating that results in an improved beading effect when the surface comes in contact with water or oil, allowing for more efficient cleaning

External dial on the filter ring assembly allows for the independent rotation of the filter for adjustment of its polarization effect when it is used with the Haida M10 Filter Holder

Plastic filter case for storage and transport

Related Questions and Answers

Q: 1. What are the differences between this new Haida M10-II and the original M10 Filter Systems? Are they completely forward and backward compatible?

A: The second generation of Haida's M10 100mm filter holder, the M10-II is upgraded with a nonslip design that allows for easier handling in most weather conditions. It also has a new locking design for quicker attachment to adapter rings. New filter guides snap into place rather than requiring screws to be used as in the predecessor version. Also, a new locking knob will keep the holder in place after it has been rotated, whereas the previous generation did not have a rotation lock. This works with the same holder adapters and filters as the previous generation.

Q: 2. Will this hold a round Cokin Z-Pro filter? https://www.bhphotovideo.com/c/product/387268-REG/Cokin_CX007_X_Pro_007_Infrared_89B.html

A: This holder is only able to accommodate 100mm wide filters with a thickness of 2mm.

Q: 3. Does this set include the Light Sealing Ring?

A: The two included gaskets form the light seal.

Q: 4. Hello. What is its inner diameter (only glass side) of CPL?

A: That info is undetermined, please contact Haida at; Website http://www.haidaphoto.com/ Email sales@haidaphoto.com

Q: 5. Will this fit the Sony FE 600mm f/4 OSS GM telephoto lens?

A: No, the Haida M10-II Drop-In ND6.0 (1,048,576X) One Million X Edition Nano-Coated ND Filter for M10-II Filter Holder will not be able to work on the Sony FE 600mm f/4 OSS GM lens, as that lens does not except screw-on attachments.

Q: 6. Can the adapter rings from the (first generation) Haida M10 holder be used with the M10 II System?

A: Yes, the adapter rings from the original Haida M10 Holder can be used with the M10 II System.

Q: 7. Is this safe/certified for solar photography?

A: Haida M10-II Drop-In ND6.0 (1,048,576X) One Million X Edition Nano-Coated ND Filter for M10-II Filter Holder is safe for the camera to point to the sun. It is not safe to be used over the human eye, also not safe for the human eye to look through the camera viewfinder.

Q: 8. I am extremely new at buying filters and have never bought a filter holder so my question, is it compatible with a 55 mm 1:1.8 STM 49mm??

A: As you state your lens uses 49mm filter threads, if you purchase the Haida 49mm Lens Adapter Ring for M10 Filter Holder, B&H # HAARM1049, then yes, you may use the Haida M10 Filter Holder, B&H # HAFHM10, to connect 100mm (4-inch wide) square or rectangular filters onto your camera lens.

Q: 9. Since the M10 is circular, can the Lee Big Stopper be used without light leakage ?

A: yes you can

Q: 10. What are the exterior dimensions of this filters pouch?

A: The exterior dimensions would be 7.3 inches long by 6.4 inches wide by 3.3 inches high.