Formatt Hitech 138mm Combination Light Balancing 81EF/ND 2-stops Glass Filter

Formatt Hitech 138mm Combination Light Balancing 81EF/Neutral Density (ND) 2-stops Schott-Desag B270 Crown Optical Glass Filter

Formatt Hitech 138mm Combination Light Balancing 81EF/Neutral Density (ND) 2-stops Schott-Desag B270 Crown Optical Glass Filter

B&H # FO81EFN.6138 MFR # BF 138-81EFND.6
Formatt Hitech 138mm Combination Light Balancing 81EF/ND 2-stops Glass Filter

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  • 1Description

The Formatt 138mm Combination Light Balancing 81EF/Neutral Density (ND) 2-stops (2-stops ) Schott-Desag B270 Crown Optical Glass Filter combines the effects of an 81EF Light Balancing filter with a Neutral Density filter.

81EF
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. You might even consider using an 81EF at the beach to make a hot scene even "hotter".

Neutral Density (ND)
ND filters appear grey and reduce the amount of light reaching the film; They have no effect on color balance. They are very useful when you want to shoot high speed film outdoors on a very bright day.

Formatt, a company with three generations of professional filter-making experience produces every filter to the highest technical standards. The finest materials, together with state of-the-art production technology have resulted in a standard of optical excellence unmatched anywhere else.

Neutral Density filters have four main uses

To enable slow shutter speeds to be used, especially with high speed films, to record movement in subjects such as waterfalls, clouds, or cars
To decrease depth of field by allowing wider apertures to be used, which helps separate subjects from their background
To decrease the effective ISO of high speed film (above ISO 400) and allow it to be used outdoors in bright situations
To allow cine and video cameras (which have fixed shutter speeds) to film subjects such as snow, sand or other bright scenes which could cause overexposure

Neutral Density factors

ND.3 (exposure adjustment = 1 stop, reduces ISO 1/2)
ND.6 (exposure adjustment = 2 stops, reduces ISO 1/4)
ND.9 (exposure adjustment = 3 stops, reduces ISO 1/8)
ND 1.2 (exposure adjustment = 4-stops, reduces ISO 1/16
In the Box
Formatt Hitech 138mm Combination Light Balancing 81EF/Neutral Density (ND) 2-stops Schott-Desag B270 Crown Optical Glass Filter
  • One-Year Warranty
  • Table of Contents
    • 1Description
    Filter Type Solid ND Combination
    Combination Type 81EF Color Conversion
    Density 0.6 (2 Stops)
    Shape Circle
    Circular Size 138 mm
    Rotating No
    Front Thread / Bayonet 138 mm
    Filter Material Glass
    Coating Multi-Coated
    Packaging Info
    Package Weight 0.4 lb
    Box Dimensions (LxWxH) 2.0 x 2.0 x 2.0"

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