Green.L High Quality Waterproof Multi-Coated 37-86mm ND2-2000 Variable Filter
waterfalls, clouds or cars.
1).Decrease depth of filed by allowing wider apertures to be used, in turn helping to separete subjects from their background.
2).Decrease the effective ISO of high-speed film (above ISO 400) and allow it to be used outdoors in bright situations.
3).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.
4).ND2: reduce one gear of the aperture, average transmittance of 50%
Material: Float glass + Aluminum alloys
Available Size: 25mm, 27mm, 28mm, 30mm, 30.5mm, 34mm, 37mm, 40.5mm, 43mm, 46mm, 49mm, 52mm, 55mm, 58mm, 62mm, 67mm,72mm, 74mm, 77mm, 82mm, 86mm, 95mm, 105mm,112mm,127mm and customized is also welcome.