Neutral Density filters are used to reduce the quantity of light that reaches the sensor of the camera. They allow to decrease the shutter speed in order to achieve motion blur (waterfalls, ocean, clouds...) and/or to reduce depth of field in very bright conditions. As they are "neutral", ND filters do not affect color rendition.
Feature:
Slim frame design,avoid the dark corner,made of high quality Aluminum
2 super nano coating layer,water-proof,oil-proof.16 layer Transparent Membrane,Ensure more transparent rate, does not affect the image.
High quality glass,without any color change.
Specifiction:
Frame Profile: Slim
Filter Density: ND3.0 (1000x)
fStop Reduction: 10 (approx)
Double thread:Yes
Material:K9L Optical Glass & Aluminum
Package including:
mm ND1000 filter x 1 (in original package)