Neutral Density () filters can reduce the intensity of equally without appreciably changing its color. Fotga fader filter can change the luminous flux substantially with , reducing the amount of from 2 times of the lowest to about 400 times of the hightest. It can easily replace dozens of all grades of density gray filters (max. equal to 3 ND9)(1 ND9 can reduce three grade ). The operation is extremely convenient when selecting your desired density, just rotating filters. The index marks on the filter let you know exactly the amount of reduction at a glance.This filter is highly recommended by famous photographers and film directors. If you have it, you won't need to carry a bunch of filters for shooting.

Features:
This Fotga filter is much thinner than that of other brands, two filters fits each other better.
It is adjustable from ND2, ND4, ND8 to ND400 infinitely, satisfied different conditions.
Neutral Density () filters can reduce the intensity of equally without appreciably changing its color.
Neutral density filters are often used to achieve motion blur effects with slowing shutter speeds.
Mark scale and "Min"(the lightest), "Max" (darkest) tags on the outer to help users accurately resets to a certain density.
In a strong environment, to shoot the scene of small depth of field (blur the background, thus showing the main body).
In a bright environment, using high-density photography to shoot the scene of dynamic objects.
In a bright environment, to shoot strong dynamic screen (such as streams, waves, athletes, wind and vegetation, etc), often use a longer shutter , to blur the whole movement or a part.
Modulate to the appropriate density for flash photography at close distance.
Used in variety of the scenes which need a wide of adjusting the amount of .
With 52mm male thread/ 55mm female thread, can be mounted to 52mm lens or attached to 55mm additional filter.
Fits SLR / digital / DV.

Specifications:
Material: Optical Glass
Neutral density grade: 2-400
Back thread diameter (attach to lens, male thread): 52mm
Front thread diameter (attach to additional filter, female thread): 55mm
Item weight: 20g / 0.71oz
Package size: 7 * 8.5 * 1.4cm / 2.76 * 3.35 * 0.55in
Package weight: 47g / 1.66oz

Package List: D2127
1 * 52mm Fader Filter