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FOTGA 58mm ND4 Neutral Density Lens Filter for Canon Nikon Sony Pentax Olympus Panasonic Fujifilm Leica Ricoh Samsung DSLR Cameras Lenses
ND2 ,reduce one gear of the aperture,average transmittance of 50% ND4 ,reduce two gear of the aperture,average transmittance of 25% ND8 ,reduce three gear of the aperture,average transmittance of 12.5% Fit all Brand DC/DV/DSLR/SLR Digital Camera lens at - 77mm diameter filter size Four main uses: 1) Enables slow shutter speeds to be used, especially with high-speed films, allowing film to record movement in subjects such as waterfalls, clouds, or cars. 2) Decrease depth of field by allowing wider apertures to be used, in turn helping to separate subjects from their background. 3) Decrease the effective ISO of high-speed film (above ISO 400) and allow it to be used outdoors in bright situations. 4) To allow picture and video cameras (which have fixed shutter speeds) to film subjects such as snow, sand or other bright scenes that can cause overexposure.Package including:1*Filter