Formatt 77mm Graduated Neutral Density (ND) 0.6 HD Glass Filter (Soft Edge)

• A standard set of ND's is 0.3, 0.6, 0.9 and 1.2. This represents 1 to 4 stops of light reduction 1

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Please Note:

Heavier ND's can be manufactured but are not standard stock items

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)

• ND1.2 (exposure adjustment = 4 stops, reduces ISO 1/16)

Formatt Grads are available in four types

• Soft Edge - Half clear, half coloured with a smooth transition to full density. Generally used with medium to wide angle lenses

• Hard Edge - Half clear, half coloured with a definite less subtle transition. For use with long focal length lenses

• Razor Edge - As hard edge but with a solid transition line for shooting corners of buildings, knife-edge horizons or when a very bold transition is required

• Attenuator/Blender - The grad line is right at one edge of the filter so the colour change runs from top to bottom. Perfect for irregular objects and skylines