The 3-stop, 138mm Tiffen Combination Light Balancing 81EF/ND Filter combines the effects of an 81EF light balancing filter with a neutral density filter. An 81EF filter, the strongest in the 81 series, will more than replace the yellow missing from the image and place all skin tones on a distinctly "warmish" level. Neutral density filters appear gray and reduce the amount of light entering the lens. They have no effect on color balance and are very useful when you want to shoot high-speed film outdoors on a very bright day.

Tiffen's ColorCore glass is produced through a process that entails permanently laminating the filter material in between two pieces of optical glass that are ground flat to tolerances of 1/10,000th of an inch, then mounted in precision aluminum rings. This process makes for greater accuracy of color as opposed to glass that is simply dyed and become subject to deviation during the dye process.

0.9 Optical Density    ColorCore Glass    Black Filter Ring    81EF Adds Significant Warmth to Image    Allows Use of Fast Film in Bright Light    Made in the USA

• Good for general scenics when the photographer wishes to remove the bluish cast from open shade or just add warmth to the photograph, with an 81EF having the greatest effect
  
  81 Series Conversion Factors
• 81 decreases color temperature from 3300 to 3200K
• 81A decreases color temperature from 3400 to 3200K
• 81B decreases color temperature from 3500 to 3200K
• 81C decreases color temperature from 3600 to 3200K
• 81D decreases color temperature from 3700 to 3200K
• 81EF decreases color temperature from 3900 to 3200K

• Enable slow shutter speeds to be used, especially with high speed films, to record movement in subjects such as waterfalls, clouds, or cars
• Decrease depth of field by allowing wider apertures to be used, which helps separate subjects from their backgrounds
• Allow cine and video cameras (which have fixed shutter speeds) to film subjects such as snow, sand, or other bright scenes that could cause overexposure
  
  Neutral Density Factors
• ND 0.3 (exposure adjustment = 1 stop, reduces ISO 1/2)
• ND 0.6 (exposure adjustment = 2 stops, reduces ISO 1/4)
• ND 0.9 (exposure adjustment = 3 stops, reduces ISO 1/8)

Related Questions and Answers

Q: 1. How thick is the glass?

A: its fair enoght to be strong i think its may be about 2mm or may be more

Q: 2. Is this filter multi coated?

A: This filter is not multi coated. If you wish to puchase a 77mm Tiffen multi coated ND .6 please visit the link below:a href= https://www.bhphotovideo.com/c/product/533249-REG/Tiffen_77HTND6_77mm_Digital_HT_High.html target= _blank https://www.bhphotovideo.com/c/product/533249-REG/Tiffen_77HTND6_77mm_Digital_HT_High.html/a

Q: 3. How do I remove something from my cart?

A: Please contact B&H Customer Support

Q: 4. Normal 85b is reduced by 0.6 stops. This is normal 85b(0.6) + nd(0.3) product?? Or does the new technology mean that the 85b filter itself only reduces 0.3 stops?

A: No, the following filter blends both an amber color conversion 85B and a 0.3 neutral density filter.

Q: 5. Why is the filter so inexpensive? Is it just the small size?

A: Price is based upon the size of the filter. 52mm is one of the smaller sizes and is thus priced less than filters for larger thread sizes.

Q: 6. Does this fit the Canon 14mm F2.8 L Mark 1 lens?

A: No, this Tiffen 48mm Rear Mount ND 1.2 Filter is not compatible with the rear filter slot on the Canon 14mm f/2.8L lens.

Q: 7. Does this filter have coatings to reduce flare and internal reflections?

A: No, this is not a coated filter.

Q: 8. how many stops total compensation does this require? .9nd +the 85

A: It is a 3 stop filter. You would need 3 stops of compensation. The 3 stop rating on the filter factors in the 85B filtering properties.

Q: 9. will this work on a nikon z30 kit lens?

A: Yes, the Nikon Z30 Mirrorless Camera with 16-50mm Lens is compatible with the Tiffen 46mm ND 1.2 Filter (4-Stop).

Q: 10. Any discoloration with the filter?

A: The water white series don't has cromtica variation. The regular ND series no WW is little green.