The 10-stop, 77mm Heliopan ND Filter provides a 10-stop exposure reduction. Its 3.0 optical density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed without overexposing your image. By slowing your exposure time, you can create motion blur for special effects or to convey a sense of movement. Opening your iris allows you to create shallow depth of field, which can help isolate your subject. Neutral density filters do not affect the coloration of the image and are ideal for pairing with other filters.

To prevent internal ghosting and reflections, each glass surface includes four layers of anti-reflection coating. Together, these eight coatings offer greater protection to the filter substrate and help it to stay clean for longer than with uncoated filters. This Heliopan neutral density filter is constructed from SCHOTT glass for increased optical clarity as well as color fidelity and features a brass filter ring for enhanced durability and jamming prevention.

3.0 Optical Density    Multicoated    Schott Glass    Brass Ring    77mm Front Filter Threads    Knurled Sides    Darkens Entire Image    Allows Reduced Shutter Speed    Allows Wider Aperture

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

Providing a 10-stop exposure reduction, this filter allows you to control depth of field and convey movement more easily.

Filter does not affect coloration of the image and is ideal for use with other filters.

Each glass surface includes four layers of anti-reflection coating to prevent internal ghosting and reflections.

Constructed from SCHOTT glass for optical clarity.

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

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

77mm front filter threads allow for use with other filters.

Related Questions and Answers

Q: 1. Does this filter have a "normal" stop where it acts like a UV filter and doesn't darken the image or will automatically darken when put on?

A: This filter is always darkening the image by 10 stops. This is not a variable filter, it is a fixed 10 stop ND filter.

Q: 2. How does this ND filter work with ultra wide lens (10-18mm) or a wide angle (18-35mm)?

A: It works perfectly fine when used with a 10-18mm lens. No issues here.

Q: 3. Hi,- What is the thickness of the filter's frame? And without counting the threads?- Is it easy to clean?- Does it have threads on both sides?Thank you!!

A: Pablo,The thickness of the filter frame:with threads = 9/32 inch (.28125 inch)without threads = 11/64 inch (.17188 inch)Yes, it is easy to clean.Yes, the filter has threads on both sides. Female on the front of the filter and Male on the back side of the filter.I hope this helps.Best regards,David Rudd

Q: 4. Will this filter be safe for photographing a solar eclipse?

A: To capture the solar eclipse with this lens you will have to have the shutter open for say 30 seconds but then maybe the eclipse will move a bit causing a blur so you will have to open the aperture more. I think it will work. I have it and its great.

Q: 5. Why is the 6 stop density more expensive than the 10 stop?

A: More popular items tend to be priced higher than non popular items. It's basically were the manufacturer priced the filter according to demand.

Q: 6. if i already own a Multi coated UV filter, would I able to screw this filter on that one and essentially achieved the same effect of the $149 3.0 ND multi coated version?

A: I have the filter that you are considering for purchase, the main purpose of multi coated filters is to allow more light transmission than single coated filters. I use this filter specifically to reduce light transmission so for my purposes, multi-coating and the additional cost was not a factor in my decision. Most UV filters allow additional filters to be attached to them but you will not achieve the same results as having one multicoated 3.0 filter since you will reduce light transmission through each piece of glass light travels through. In other words, adding a multi coated UV filter to a single coated Neutral Density will not increase the light transmission of the single coated neutral density filter. Essentially, by combining the filters, you will be achieving the opposite results.

Q: 7. I have Nikon 16-35mm len. I heard someone indicated that this len may cause flare. Can I attach my 77mm len hood to my wide-angle len first and then attach this ND len on the wide-angle len???

A: Not really. The Eclipse should be attached to the Wide Angle lens and then attach the Fader Hood. The hood should reduce the chance of flare.

Q: 8. differences between this single coated filter and the MRC version for more $ ??

A: I dont really know, but it may have to do with the color cast. The ND filter I use leaves a reddish brown cast, which sometimes works with the photo,but is easily fixable if you shoot RAW.

Q: 9. Will it open up to almost clear? If not whats the lightest it goes?

A: It's black glass and that's that. Do all your camera settings first. Then add the ND filter and take the shot.

Q: 10. My widest lens is a Nikon 17-35mm f: 2.8. Has anyone used this filter with this lens and seen any vignetting?

A: No issue with 16-24 lens on Canon 6D.