This 4-stop FotodioX ND Filter features a filter ring with 145mm front filter threads. 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 than normally required. By slowing your exposure time or increasing your aperture, you are able to 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.

To prevent internal ghosting and reflections, this filter includes multiple layers of anti-reflection coating. These coatings also offer greater protection to the filter substrate and help it to stay clean for longer than with uncoated filters. This filter is constructed from optical glass for clarity as well as color fidelity and features an aluminum-alloy filter ring for durability while remaining lightweight.

For Sigma 14mm f/2.8 EX Aspherical HSM    WonderPana FreeArc Core Unit    Use with WonderPana 6.6" Holder Bracket    Bracket Rotates, Holds 6.6" Wide Filters    145mm Solid Neutral Density 1.2 Filter    16x Filter Factor, 4-Stop    Darkens Entire Image    145mm Solid Neutral Density 1.5 Filter    32x Filter Factor, 5-Stop    145mm Center-Pinch Snap-On Lens Cap

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

Providing a 4-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.

Includes multiple layers of anti-reflection coating to prevent internal ghosting and reflections.

Constructed optical glass for clarity and color fidelity.

145mm front filter threads allow for use with other filters.

Durable, lightweight aluminum-alloy filter ring with one brass side knob allows the filter to be easily screwed on or off.

Filter pouch included for storage and transport.

Related Questions and Answers

Q: 1. Hi ! Video guy question ! Will this let me go f1.8 on 1/50 and 200 iso on a bright sunny day ? Or I need the other version. Thanks

A: Unfortunately, we cannot be sure exactly how much density you will need without knowing the original exposure or the ambient light level. However, I would guesstimate that, by using the Sunny-16 rule, I would recommend you would need at least a 10-stop neutral density filter for your usage needs, so the above option would not work for your usage. If you are looking for an alternative that would work, I would recommend the Aurora-Aperture 77mm Power XND Mark II Variable ND 1.5 to 3.3 Filter (5 to 11-Stop), B&H # AUVND322K77, or the Haida 77mm NanoPro Variable Neutral Density 0.9 to 3.0 Filter (3 to 10-Stop), B&H # HANPVND77, for your usage needs.

Q: 2. Can this VND work with PolarPro's Summit kit similarly to its drop-in CPL?

A: No, the PolarPro Summit filter holder uses the PolarPro Summit filters and does not work with a standard screw on filter like the PolarPro 82mm Peter McKinnon Edition Variable Neutral Density filter.

Q: 3. Is it a 0.45 to 1.5 or 1.5 to 5 filter?Are these two different versions?

A: For whatever reason, we are changing over the nomenclature delineating what strength an ND filter is. Therefore this name lists both. Old way: This is a variable 0.45-1.5 Neutral Density filter. New way: this reduces exposure by 1.5 to 5 Stops.

Q: 4. Can these be used with step-up rings without optical problems?

A: Yes, step up rings will not be a problem with this filter.

Q: 5. Will this work on Sony 24mm GM with lens hood?

A: You can use this filter with the hood but rotating it would be a task.

Q: 6. Can this magnetic filter attach on top of a threaded cpl after using the magnetic base? Like using this on top of tiffen or BW cpl

A: You can threadFreewell 82mm Magnetic Quick-Swap Neutral Density 3.0 Filter on top of a Tiffen or B+W circular polarizer. Please keep in mind that the magnetic ring is only on the top ring of the Freewell 82mm Magnetic Quick-Swap Neutral Density 3.0 Filter.

Q: 7. Is there a setting with no density: i.e., a completely clear setting?

A: The lowest density on that filter is 2 stop reduction of light.

Q: 8. Does the side lever interfere with a lens hood and if so, can it be removed from the filter?

A: A standard snap on hood Especially because the front is stepped up to avoid vignette) may not work with this filter but most threaded 82mm hoods should work with it.

Q: 9. So this is not a CPL? In the first picture it clearly indicates it is CPL but everything else in the listing including the title suggests that it's an ND filter and not a Circular Polarizer Linear lens filter.

A: This is not a CPL, it is a solid ND. I will email the webmaster to double check on the photo.

Q: 10. Does this have 82mm threads on the front to attach a lens hood?

A: This filter does not have front threads.