The 82mm Formatt Hitech 82mm 4-Stop ND Filteris a solid neutral density filter providing a 4-stop reduction in exposure. This 1.2 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or longer 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.

The design of this filter has been optimized for use with digital sensors and promote nearly flat attenuation of visible, UV, and infrared light. Due to imaging sensors' greater susceptibility to infrared light, compared to traditional film, color casts can occur when photographing darker subjects that require increased exposure times. This filter provides a high level of neutrality across all three spectrums in order to eliminate color casts and ensure cleaner, truer blacks.

Applied to the outside of the Schott Superwite glass construction is a 15-layer Firecrest multicoating, which helps to minimize reflections and flare in order maintain truer colors and contrast. The multicoating is also scratch resistant and hydrophobic to benefit the overall durability of the filter. The filter is set within a 5.5mm-thick SuperSlim aluminum filter ring, which features front threads for stacking additional filters or attaching a lens cap.

This filter is designed specifically for photography applications. This filter is not suitable for direct solar viewing with the naked eye, including with optical viewfinders.

1.2 Optical Density    15-Layer Coating on Outside of Filter    Hydrophobic and Scratch Resistant    Schott Superwite Glass    SuperSlim 5.5mm-Thick, Stackable Ring    Designed for Solar Photography    Increase Exposure Length    Greater Control Over Exposures    Neutral Results Across All Spectrums    Includes Pouch

ND 1.2 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.

Attenuates infrared light, as well as visible and UV wavelengths, to maintain color neutrality and suppress color casts due to increased exposure lengths.

The 15-layer Firecrest coating has been applied directly to the outside of the filter glass by way of a vacuum-formed, hard-coated, electrolytic process. The multicoating is water and scratch resistant for greater overall durability.

Schott Superwite glass promotes maintained image clarity and is set within a 5.5mm-thick SuperSlim aluminum filter ring.

Related Questions and Answers

Q: 1. Is there a ND filter I can used with a 10-24mm lens that does not band or vignette? for a Tamron SP 10-24 77mm

A: This ND filter is optimized for use with wide angle lenses, so vignetting will be kept to a minimum, if there is any at all.

Q: 2. does this have ir control?

A: This is not for controlling Infrared light.

Q: 3. I'm confused. The pictures and specifications indicate these are 100mm X 150mm filters. The answer for, "What comes in the box by 'Manzell L. (Staff) states they are 100mm square. Are they 3 square or rectangular filters?

A: The filters are rectangular. This is common with most graduated neutral density filters since you sometimes need to raise or lower the line where the density changes.

Q: 4. Does the ring physically stop at min and max ends, or does it just spin all the way around?

A: The Formatt Hitech 72mm Multistop Variable Neutral Density Filter ring does not physically stop at min, or max. It does just spin around.

Q: 5. will these filters fit a Sinar filter holder? would be using on a large format camera with a Nikor 90mm and and Nikor 210mm lens.

A: If you have a Sinar 100 x 100mm filter holder, these filters can fit.

Q: 6. Does it hav front filter threads, for stacking other filters/hoods?

A: The Moment 77mm Variable Neutral Density 1.8 to 2.7 Filter (6 to 9-Stop) does not have front filter threads.

Q: 7. Does it have front filter threads?

A: The Moment 77mm Variable Neutral Density 1.8 to 2.7 Filter (6 to 9-Stop) does not have front threads. The inner diameter is 85mm; the outer front diameter is 96mm.

Q: 8. What is the weight of this filter?

A: We would guesstimate it to be approximately 1 oz.

Q: 9. Does this have hard stops?

A: No.

Q: 10. Will this filter block InfraRed light?

A: No, only a dedicated IR filter would work in this manner.