This 2 x 2" Tiffen Combination 81EF/ND Filter blends both an amber light-balancing 81EF and a 0.9 neutral density filter. The ND filtration provides a 3-stop exposure reduction for darkening the entire image in order to photograph with a wider aperture or slower shutter speed than normally required. The 81EF filtration covers the entire filter plane and lessens the color temperature by 650K, enabling the ability to attain 3200K balance when the prevailing light source is 3850K.

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 2 x 2" / 50.8 x 50.8mm.

0.9 Optical Density    ColorCore Technology    Warming Filter to Decrease Color Temp    ND Filter to Increase Exposure Length

Combination of both an amber light-balancing 81EF and an ND filter.

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

81EF light-balancing filter decreases color temperature and provides a warming effect.

Related Questions and Answers

Q: 1. I have a Sony Zeiss Vario-Tessar T* FE 16-35mm F4 ZA OSS lens. The filter diameter is 72mm. What size do I need to fit this ND FIlter? If I choose 72mm, won't vignetting occur at 16mm? I've heard this filter is thick.

A: You will need to get a thin 72mm filter, I would recommend the Cokin nd, click the link below to view; https://www.bhphotovideo.com/c/product/1487120-REG/cokin_cnv2_72_nuances_variable_nd_2_400.html

Q: 2. What size lens cover works? Bought 85mm push cap but it was far too small.

A: The Kaiser 100mm Push-On Lens Cap, BH #KALC100, is large for the Tiffen 82mm Variable Neutral Density Filter. However, adding gaffer tape around the inside edge could make it fit.

Q: 3. Is this filter compatible with the Moment M-series lens - 67mm filter adapter?

A: No, the Tiffen 62mm Variable Neutral Density Filter is not the correct size for the Moment M-Series Lens 67mm Filter Mount. One would need to get the Tiffen 67mm Variable Neutral Density Filter, BH #TIVND67 (https://bhpho.to/3FUZ4GR).

Q: 4. What size lens cap do I need for the 58 mm filter?

A: This is incorrect. The front threads of the 58VND are 67mm, however he Tiffen VND filter has very little front filter threads to avoid vignetting. As a result, a front lens cap cannot be attached. We recommend that you remove the filter and return it to its protective pouch instead of leaving it on the lens

Q: 5. Im looking to add this to my 17-40 mm lens for a canon 60D. While the 60D isn't a crop camera, and the lens is full frame, it still works well for me. What MM will I need and will it work?

A: This particular filter fits camera lenses with a 58mm filter thread. Please check the filter thread size on your lens to determine the correct size filter to order.

Q: 6. Will this work in the lee 4x4 filter holder?

A: Tiffen ND filters are 4mm thick, while Lee filters are 2mm thick. This will work in the Lee holder as long as you have the one which you can modify to accept 4mm filters. Tiffen will be releasing a filter holder designed to hold two 4mm filters within the next few months. Keep an eye out for the Pro 100 Series Filter Holder, coming soon.

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. What is the material of the ring? Aluminum? Brass?

A: Aluminum

Q: 9. I want to get a bigger filter size so I can just step it down to any desired lens size. I just want to know if it will cause any vignette or distortion when stepping down?

A: When stepping down it will not.

Q: 10. Does it have IR protection ?

A: It is not rated for IR, This is a Neutral Density filter, but I yet have to come up an IR issue using it with my Sony A7RII. If you have IR issues with your sensor often like color shifts I suggest you correct those with a proper IR filter first. A Variable Neutral Density filter works by juxtaposing 2 polarizing filters so there is a highly modified light spectrum left, I wonder if you should be worring about IR at the end. Enjoy. This filter is a game changer specially on travel and run and gun.