The Tokina 6.6x6.6 PRO IRND 0.9 3-Stop Filteris compatible with filter holders that can accommodate filters that are 6.6" wide and 4mm thick. It is an ND filter with an 8x filter factor that provides a 3-stop exposure reduction. This filter's 0.9 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 are intended to not affect the coloration of the image and are ideal for pairing with other filters.

The design of this filter has been optimized for use with digital sensors and to promote nearly flat attenuation of visible 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. To provide a high level of neutrality across the visible and infrared spectrums in order to eliminate color casts and ensure cleaner, truer blacks when using this filter, one ACCU-ND Vapor Deposition layer is sandwiched between two layers of optical glass.

This Tokina 6.6 x 6.6" PRO IRND 0.9 Filter is constructed from optical glass for clarity as well as color fidelity, and its sandwich design protects the ACCU-ND substrate while the glass surfaces can be re-polished should they become accidentally scratched.

8x Filter Factor, 3-Stop    Darkens Entire Image    Allows Reduced Shutter Speed    Allows Wider Aperture    Neutral Results, Visible, & IR Spectrums    ACCU-ND Vapor Deposition Layer    Optical Glass Construction    Padded Pouch

Compatible with filter holders that can accommodate filters that are 4" wide and 4mm thick.

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

Providing a 3-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.

One ACCU-ND Vapor Deposition layer attenuates infrared light, as well as visible wavelengths, to maintain color neutrality and suppress color casts due to increased exposure times.

Constructed from optical glass for clarity.

Padded pouch included for storage and transport.

Related Questions and Answers

Q: 1. Does this have a hard stop on it or does it rotate a full 360+?

A: The stops are indicated on the filter, however there is no pushback or hard stop as you rotate the ring.

Q: 2. Would combining one of these with the Tilta Mirage's VND filter cause issues? I realize these are IRND and the VND is not, but I'm thinking I may sometimes need more than the 2.7 stops the VND offers.

A: Using the Vaxis VFX 95 IRND 1.5 Filter for Tilta Mirage Matte Box with another ND filter will increase internal reflections from the layers of glass, but it can be done.

Q: 3. Do you think I would get vignetting if I used this on a 10mm with a 77mm filter thread and a step up ring?

A: I suspect you would get 'some' vignetting, but don't have actual experience with this combination.

Q: 4. I purchased this filter from you earlier this month. The filter ring is oversized . Can you recommend a lens cap that would work with this filter? Thank you. - Michael

A: The front filter thread size of the B+W 72mm XS-Pro Digital ND Vario MRC nano Filter is 77mm. As such, any 77mm lens cap should fit onto the filter. If you need a particular recommendation, then I would recommend the Sensei 77mm Center Pinch Snap-On Lens Cap, B&H # SELC77, for your stated needs.

Q: 5. How many light steps does it represent?

A: The Vaxis VFX 95 IRND 2.1 Filter for Tilta Mirage Matte Box would reduce the light by 7 stops.

Q: 6. Does this filter have hard stops?

A: This filter provides a hard stop at the beginning and at the end of the stop rotation. Please keep in mind there is no D-click between stops.

Q: 7. Can screw on filters be stacked on top of the Nano 810 filter?

A: No you can not stack filters on top of this one. I would suggest that this be the last filter of the stack.

Q: 8. will it work with the nisi v6 holder?

A: The K&F Concept X-Pro Square ND64 Filter with Frame (100x100) is not compatible with the NiSi V6 Filter Holder. This item is designed for use with the X-Pro Square Filter Holder System.

Q: 9. How many stops is 1.5?

A: In ND measurements 1.5 is 5 stops of ND

Q: 10. Can additional filters be added on top of the Nano 810 to stack filters?

A: There is a 67mm front thread on this filter, so you can stack filters as needed. However, there is a risk of vignetting as you add more than one filter.