This 6.6 x 6.6" Tiffen 4-Stop ND Filter 6.6 x 6.6"is a solid neutral density filter providing a 4-stop exposure reduction. This 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 increasing your aperture or slowing your exposure time, 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.

This filter is made using ColorCore technology, a process that involves laminating the filter substrate between two pieces of optical glass and grinding flat to a tolerance of 1/10,000th of an inch. This filter measures 6.6 x 6.6" / 167.6 x 167.6mm.

1.2 Optical Density    Glass Filter    ColorCore Technology    Requires 4-Stop Exposure Increase    Darkens Entire Image    Allows Reduced Shutter Speed    Allows Wider Aperture

1.2 solid ND 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.

Related Questions and Answers

Q: 1. Could you recommend a lens cap for this filter please? The filter is 82mm but the front part of (I think) 94mm.

A: You may have success with the Kaiser 85mm Push-On (http://bhpho.to/2aJYEnM). People seem to have luck with other 82mm sized filters.

Q: 2. Does this filter fit on 77mm Canon 24-105 f4/L? Or I should some other?

A: I think Canon 24-105 f4/L has 77mm filter thread. This filter should work.

Q: 3. Does this have hard stops?

A: No it does not have hard stops, but the stops are clearly marked on the outer perimeter with white dots.

Q: 4. Do the Tiffen IRND filters come with any pouch or case?

A: The Tiffen 4x4 Full Spectrum IRND 1.2 Filter comes with a pouch.

Q: 5. Does this come with a case or pouch?

A: This comes with a pouch

Q: 6. I want to thread a step down ring on the outside of the 82mm in order to mount a padcaster teleprompter, what is the outside size? 87mm?

A: According to Tiffen, the exterior diameter of the outer ring on the Tiffen 82mm Variable Neutral Density Filter is 3.851 inches, or 97.82 mm.

Q: 7. For the 77mm version, is the reported green cast, X uneven fading AND/OR image degradation (softness, etc) starting to appear more easily in 24mm focal length or wider (on Full Frame cameras)?And are those issues appearing WITHIN the Start and End marks? At what point aprox.?Thank you!!

A: What green cast are you referring to? There are no known issues with green cast with the Tiffen VND filter, perhaps you are referring to the IRVND?The X Bar effect is a function of optical physics when combining two circular polarizing filters to make a VND. This effect happens with all manufacturers VND filters and does not indicate a problem with the filter. The X Bar effect typically appears when shooting at wide angle and at higher density settings on the VND filter, you will see this effect appear sooner with a full frame camera than with a cropped sensor camera. To correct this look through your viewfinder and reduce the density on the VND filter, change your focal length by zooming in or a combination of both until the effect goes away. The X Bar effect can happen within the Min and Max settings, especially at darker densities on full frame cameras. You should never adjust the VND outside the Min and Max settings.

Q: 8. Is this compatible with the Moment Cinebloom filter? Can I use both at the same time?

A: While this could be screwed into the front of a Moment 72mm CineBloom filter, there is a chance of vignetting on wide angle lenses.

Q: 9. Does this filter come with a pouch?

A: Yes, it comes with a filter pouch.

Q: 10. I want to use this filter on Schneider Super-Angulon XL 5.6/58mm lenses. (approximately 17~17.5mm equivalent to 35mm). And I want to use it mainly in the 2~6 stops range. In this case, will the "X" pattern appear?

A: I have used this with no problems. On a Sigma 10-20mm and bracketing shots in Manual and Aperture priority.. Never had any Side affects.