The Tokina 4 x 4" PRO IRND 1.8 Filter is compatible with filter holders that can accommodate filters that are 4" wide and 4mm thick. It is an ND filter with a 64x filter factor that provides a 6-stop exposure reduction. This filter's 1.8 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 4 x 4" PRO IRND 1.8 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.

64x Filter Factor, 6-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.

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

Providing a 6-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. Is the filter holder included?

A: No. Just the following is included. VFX Filter Alcantara leather bag

Q: 2. HI All Will this filter and the 8x nd viginate on the canon 10-22mm lens? thanks Rich

A: You may experience vignette when stacking this filter with another ND filter on a wide angle lens.

Q: 3. Is this a thin filter for use with a wide angle lens?

A: This is not classified as a thin filter.

Q: 4. one paragraph specifically says "This filter IS designed for direct solar viewing" then another paragraph says it is NOT ?

A: The Kolari Vision Pro IRND Filter (20-Stop, 77mm) does not allow direct solar viewing with your bare eyes/optical viewfinder. It allows for solar photography.

Q: 5. Why does the stock photo, depicting 'Without Filter' and'With Filter', show quite a corruption of the color with filter?

A: No idea, I bought one of these, and it seems to be neutral density. I notice that colors saturate more with long exposures, but the color are true.

Q: 6. This filter does not seem to be coated to reduce flares and ghosting. Has anybody had these issue flare up?

A: I purchased one of these filters about a year ago and have found it excellent my my uses. I haven't had any issues with ghosting /flaring. I think this shade of filter is ideal, I often use it in combination with a circular polariser also from B&W on a Canon 16-35mmf4L for seascapes in relatively bright light. If you are going to combine filters make sure to get some plastic filter wrenches as they can bind.together a bit

Q: 7. Does it use a dial to get darker or is it fixed?

A: This is not a variable nd filter, the denisty is fixed at 6 stops.

Q: 8. How many stops is this?

A: The Vaxis 95 IRND 2.1 filter has an optical density rating of 2.1, which equates to a 7-stop reduction in f-stop reduction.

Q: 9. Hi there , will this fit my 16-35mm lens ?

A: If your lens is Canon 16-35 mm f/2.8 then Yes, 82 mm is your filter size.

Q: 10. Does the Hoya MKII IRD have front threads in order to mount additional NDs ?

A: Yes, the Hoya HD MKII IR ND1000 Neutral Density Filter includes front filter threads so you can attach additional ND filters or a protective lens cap.