This 4-stop, 77mm PolarPro QuartzLine ND Filter 77mm 4-Stopfrom PolarPro QuartzLine ND Filter 77mm 4-Stopis an ND filter with a 16x filter factor that provides a 4-stop exposure reduction. Its 1.2 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 or increasing your aperture, you can control depth of field and convey movement more easily. Neutral density filters do not affect the coloration of the image and are ideal for pairing with other filters.

This filter is constructed from quartz glass for enhanced durability. To prevent internal ghosting and reflections, 16 layers of anti-reflection coatings offer scratch protection to the filter substrate while promoting clarity and color fidelity. The coatings associated with this filter also result in an improved beading effect when in contact with water or oil, allowing for more efficient cleaning.

The quartz glass is set within a brass filter ring with side knurlings. Together, the brass material and knurlings prevent jamming and provide additional strength, as well as a textured grip when mounting or removing this filter from a lens.

1.2 Optical Density    Multi-Coated    Quartz Glass Construction    Water, Oil, and Scratch-Resistant    Brass Filter Ring    77mm Front Filter Threads    Knurled Sides    Darkens Entire Image    Reduce Shutter Speeds, Widen Apertures    Plastic Case & Cleaning Cloth

1.2 optical density filter darkens the image by 4 stops, allowing you to photograph with a longer shutter speed or wider aperture than normally required.

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

Constructed from quartz glass for enhanced durability.

Multicoated to prevent internal ghosting and reflections while promoting clarity as well as color fidelity.

Coatings also help prevent scratches and results in an improved beading effect when in contact with water or oil for greater cleaning efficiency.

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

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

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

Plastic filter case for storage and transport.

Microfiber cloth for cleaning and maintenance.

Related Questions and Answers

Q: 1. Where are these made? Thanks.

A: These are manufactured in China.

Q: 2. Will this filter fit with the Sony 70-200 GM Hood?

A: Yes, you will be able to attach a filter with the lens hood on.

Q: 3. will it fit a sony 200-600mm lens

A: Yes, the Sony 200-600mm has a 95mm front filter thread, so this filter will fit.

Q: 4. Hello! Does this filter have front threads (to attach a lens cap)? Thanks!

A: Yes. 77mm front filter threads allow for use with other filters or a lens cap.

Q: 5. Does it make sense to (can you ) add the Natural Density on top of this filter?

A: You can stack the filters. the polarizer should be on top. Keep in mind that the polarzer alone is about 2stop ND in addition to the unique properties it has to darken Sky, highlight Cloudes and reducing glare and reflection off glass, water and metal surfaces.

Q: 6. Is it water resistant? Does it have water repellent coating?

A: The coatings associated with the PolarPro 82mm QuartzLine Circular Polarizer Filter also result in an improved beading effect when in contact with water or oil, allowing for more efficient cleaning.

Q: 7. Does this come with the same case / cover system that the McKinnon Variable ND filter comes with?

A: It does not. The PM Variable ND Signature II comes with its round unique protector (hard cover + rubberized cover), and the Quartzline CPL comes with a square hard case with magnetic closure.

Q: 8. Curious if this ND/PL stacked with a Tiffen Black ProMist on a 24mm lens will cause vinette problems (@f/1.4 thru f/4)? I'm thinking it likely will and might then go for non PL version as it looks slightly thinner? Cheers if anyone's already test this out?

A: If you use this on a full-frame camera, you would be likely to have some vignetting. On a crop-sensor camera, it would be less likely.

Q: 9. Can you use the lens hood on a Nikkor Z 24-70mm f2.8 S lens with this CP filter?

A: You can use them together but it will be difficult to adjust the polarizer.

Q: 10. I have a Tamron 100-400 f4.5-6.3. Is an ND64 filter too high of stops for it? What should I take into consideration when looking for ND/Polarizer filters?

A: It's hard to say how many stops is too much because the contextual information (i.e. the kind of exposure/photograph you are trying to create) has significant influence on how many stops you might need. Technically you can use any amount of stops you want and likely achieve a similar result, but you will need to adjust your ISO, aperture, and/or shutter speed/bulb exposure times to compensate for the light loss. The ND64 QuartzLine ND and CP combo is great because it allows you to the option of not stacking a simple ND and CPL, thereby shooting through two pieces of glass instead of three. This is better for image clarity and lowers the chance of reflection/refraction issues between filters and glare.