This 4-stop, 85 x 85mm Formatt Hitech 4-Stop ND Filter 85x85mmis a neutral density filter that provides a 4-stop exposure reduction and is compatible with a Formatt Hitech 85mm Aluminum Modular Holder or Cokin P Series Filter Holder. Its 1.2 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 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 not coated and is constructed from optical-quality resin for clarity as well as color fidelity.

1.2 Optical Density    Optical-Resin Construction    Darkens Entire Image    Allows Reduced Shutter Speed    Allows Wider Aperture    For Formatt Hitech 85mm Aluminum Holder    For Cokin P Series Filter Holder

Compatible with a Formatt Hitech 85mm Aluminum Modular Holder or Cokin P Series Filter Holder.

1.2 neutral 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.

Constructed from optical-quality resin for clarity.

Related Questions and Answers

Q: 1. Can I use this with a 13-24mm lens?

A: Yes. Direct If it has 82mm threads or use step up ring.

Q: 2. Where is this filter made?

A: The Formatt Hitech 82mm Firecrest Graduated ND 1.2 Filter is crafted in the United Kingdom.

Q: 3. are these stackable?

A: Yes, this filter has a front thread so you can attach another filter.

Q: 4. Does it come with plastic case?

A: Yes.

Q: 5. Is this filter compatible with the Sigma 8mm f/3.5 EX DG Circular Fisheye lens? In particular, will there be the Vignette effect？

A: I don't know how you plan on attaching it to the lens but if you just hold it in front of the lens, you will get some vignetting that can be adjusted in post. BTW, there is really no other way to use a filter with this lens other than holding it or using the rear gelatin filter holder that takes cut to size gel filters.

Q: 6. I wanted to double check that this filter does in fact have front filter threds for stacking other filters because one buyer said it did not have front threads. Can soneone confirm that it does have front threads? Thank you.

A: Yes, this filter has front threads.

Q: 7. what kind of lens cap can be used? (It appears too shallow for normal lens caps)

A: You can use a screw in lens cap. There is one listed as an accessory below the item on our web page.

Q: 8. In regards to the solar filters, is there any color change to the sun? Is it more yellow/orange, or white like other filters?

A: The Formatt Hitech 105mm Firecrest Ultra ND 6.0 Filter (20-Stop) would render color very similar to what the eye sees. This filter should not be used for directly viewing the sun; always use an approved ISO 12312-2 certified solar filter when observing the Sun through optics or cameras.

Q: 9. Would the Formatt Hitech 82mm Firecrest Graduated ND 0.9 Filter which has 7.5 thickness ring produce vignetting when using on a Canon 24-70 2.8L II lens (82mm filter size) at 24mm f/2.8? (I'm concerned due to the 7.5mm thickness).Thank you very much!

A: No, it is not too wide for the filter to create vignetting.

Q: 10. Will this work with the smallrig Lightweight Matte Box? I see many people saying 100x100mm are incompatible but they say 4x4 inch are... confusing or what??

A: The Formatt Hitech 100 x 100mm Firecrest Ultra ND 0.9 Filter (3-Stop) is incompatible with the SmallRig Lightweight Carbon Fiber Matte Box because the filter trays on the matte box support 4mm thick filters, and the Formatt Hitech filter is 2mm thick.