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Heliopan 77mm Graduated Neutral Density (ND) 0.3 (2x) Filter

Heliopan 77mm Graduated Neutral Density (ND) 0.3 (2x) Filter

Heliopan 77mm Graduated Neutral Density (ND) 0.3 (2x) Filter

B&H # HEGND.377 MFR # 707767
Heliopan 77mm Graduated Neutral Density (ND) 0.3 (2x) Filter

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Product Highlights

  • Rugged Brass Filter Ring
  • High Quality Schott Glass

You Pay: $159.99

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Overview
  • 1Description

Heliopan 77mm Graduated Neutral Density (ND) 0.3 (2x) Glass Filter - Often it is necessary or desirable to balance the light intensity in one part of a scene with another. This is especially true in situations where you don't have total light control, as in bright contrasty landscapes.

Exposing for the foreground will produce a washed-out, over-exposed sky while exposing for the sky will leave the foreground dark and under-exposed. Grad ND filters are part clear, part neutral density (available in grades of 0.3 (1 stop), 0.6 (2 stops), 0.9 (3 stops)). They allow the transition to be blended into the scene, often imperceptibly. A GND 0.6-to-clear, with a two stop differential, will generally compensate the average bright sky-to-foreground situation and is also the most popular density of the series.

Graduated Neutral Density Factors

GND.3 (exposure factor = 2x; exposure adjustment = 1 stop; reduces ISO 1/2)
GND.6 (exposure factor = 4x; exposure adjustment = 2 stops; reduces ISO 1/4)
GND.9 (exposure factor = 8x; exposure adjustment = 3 stops; reduces ISO 1/8)

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
In the Box
Heliopan 77mm Graduated Neutral Density (ND) 0.3 (2x) Filter
  • Limited Lifetime Warranty Against Manufacturer's Defects
  • Table of Contents
    • 1Description
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    Specifications
    Type Graduated Neutral Density
    Size 77mm
    Grade 0.3 (1-stop)
    Filter Factor Reduces ISO 1/2
    Multi-Coated Not Applicable
    Rotating Not Applicable
    Effect Balanced light intensity from one part of a scene to another
    Application Nature, Travel, Outdoor photography; to maintain light control, as in bright contrasty landscapes; i.e. bright sky, dark foreground
    Color Temperature Not Applicable
    Construction Schott Glass
    Front Filter Thread Size 77mm
    Front Lens Cap Size 77mm
    Packaging Info
    Package Weight 0.22 lb
    Box Dimensions (LxWxH) 4.3 x 3.8 x 0.9"

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