This 10-stop K-Series Drop-In ND Filter from H&Y Filters provides a 10-stop exposure reduction. Mounted within an aluminum-alloy filter ring, it is made specifically to fit between a separately available H&Y Filters 100mm K-Series Filter Holder and one of the filter holder's adapter rings. It darkens the entire image area, allowing you to photograph with a wider aperture or slower shutter speed than normally required. Increasing the lens aperture allows finer control over depth of field and bokeh, making it easier to help isolate the subject of an image. Slowing exposure time helps increase image blur.

K-Series Drop-In Neutral Density Filters are constructed from Schott B270 glass for increased optical clarity and color fidelity. Each side of this filter includes eight layers of antireflection coating to prevent internal ghosting and reflections as well as an anti-smear nano coating for an improved beading effect when in contact with water or oil for easy cleaning. Neutral density filters do not affect the coloration of the image and are ideal for pairing with other filters.

3.0 Optical Density    8-Layer Multicoating on Each Surface    Schott B270 Glass Construction    For 100mm K-Series Drop-in Filter Holder    Darkens Entire Image Area    Allows Reduced Shutter Speed    Allows Wider Aperture    Aluminum-Alloy Filter Ring    Includes Filter Pouch

• Drop-in neutral density filter for a separately available H&Y Filters 100mm K-Series Filter Holder
• Darkens entire image area, providing a longer shutter speed to increase blur and convey movement
• May also provide wider aperture for finer depth-of-field control
• No effect on image coloration, ideal for use with other filters
• Can be used with still imaging or video
• Eight layers of antireflection coatings to prevent internal ghosting and reflections on both surfaces
• Anti-smear nano coating for improved beading effect with water or oil for easy cleaning
• Constructed from SCHOTT B270 glass for increased optical clarity
• Filter pouch for storage and transport

Related Questions and Answers

Q: 1. How this fits on lenses with filter sizes from 67-82mm? There is no info here.

A: The H&Y Filters Revoring 67-82mm Variable Neutral Density Nd3-Nd1000 And Circular Polarizer Filter has a patent-pending variable and tough retractable blade technology designed to allow the filter to fit any lens with filter thread sizes between 67 - 82mm without the need of adapter rings or step-up rings. You would twist the outer edge of the Revoring and the threads expand or contract to connect to the filter threads on the front of your lens.

Q: 2. What is the diameter of these drop in filters?

A: It is 100mm but you can only use it in the M10 filter holder. Please take a look at the following link: https://bhpho.to/2yJLoNb

Q: 3. Does the variable ND drop in filter fit in the Canon ef -R 0.71 speed booster?

A: No, the Canon Mount Adapter EF-EOS R 0.71x (seen here: https://bhpho.to/3OmrCw5) does not accept the Canon Drop-in Variable ND Filter A.

Q: 4. Can a Haida M10 drop in polarizer be used at the same time as an M10 Drop in ND filter in the M10 filter holder?

A: Yes, the Haida drop-in circular polarizer can be used in the Haida M10 filter holder along with an M10 drop-in ND filter.

Q: 5. What is a recommended storage case for the filter when not in the adapter?

A: A Domke 11x11" Color Coded Protective Wrap (Gray), B H # DOPW11G would be a suitable option to store this filter. https://bhpho.to/3t8GR0O

Q: 6. Up to how many stops can it provide?

A: The headline and specs both say 1.5 to 9 stops.

Q: 7. does it let you know what stop its set at ?

A: It has reference marks.

Q: 8. fits in the smallrig Lightweight Carbon Fiber mattebox ?

A: No it can not.

Q: 9. Does this have the option to not use any ND, while keeping the filter in the adapter to avoid dust seeping into the hole?

A: You will need to add this clear filter to the drop in filter slot in the Canon EF RF filter adapter. This filter will make sure no dust gets in the camera. https://www.bhphotovideo.com/c/product/1434115-REG/canon_3444c001_drop_in_clear_filter_a.html

Q: 10. Is there a non-variable ND drop in filter for this mount? Like a set of multiple NDs? I can't stand the color shift and increased contrast variable NDs create. I'd much prefer to just carry around a few drop in's at varying ND levels

A: We're afraid not. At this time Canon does not offer any alternative ND Filters for this system.