Introduction:

FOTGA Neutral Density (ND) filters can reduce the intensity of light without appreciably changing its color. It allows to slower shutter speed under strong sunlight exposure in order to achieve motion blur (waterfalls, ocean, clouds...). It also allows wider apertures for effectively decreasing depth of field.
With FOTGA Variable neutral density filters, you can select the intensity from ND2 (1 f-stop) to ND400 (8+ f-stops) by rotating the front ring. You don't need to carry a bunch of filters for shooting, carry ONLY a single filter with the same capability with ND2, ND4, ND8, ND16, ND32...and ND400. It is highly recommended by famous photographers and film directors.

FOTGA Fader ND-MC filter is designed based on the previous version and adopts the following advanced features.
Ultra Slim profile design. The whole filter thickness is only 6mm (much slim than similar products in the market), which can minimize vignetting when shooting at wider angles.
The index marks on the filter let you know exactly the stops of ND at a glance.
Adjustable self-locking design to facilitate positioning. When you rotate the exterior frame till (ND2) or (ND400), it can be automatically locked.
Super 12 Layers reinforcement coating on both sides, can effectively reduce the appearance of lens flare and ghosting caused by reflections;
Made of Optical glass from Japan, offering a better image resolution, avoiding any color cast.

Specification:
Type: Variable ND Filter (ND2-ND400)
Material: Optical Glass from Japan
Coating: 12 Layers Coating on both sides Frame
Thickness: 6mm
Back thread diameter (attach to lens): 55mm
Front thread diameter (attach additional filter): 58mm

Package Includes:
1 x FOTGA Ultra Slim 55mm Fader ND-MC Filter (ND2- ND400) With Original Box