SLR Magic Variable ND Filter 77mm

The technical details behind this filter
The SLR Magic Variable ND Filter 77mm is a neutral density variable filter allowing you to shoot with a longer shutter speed while giving you control to your depth of field with its 1.3 to 6 stops. It is made with several layers of coating to prevent reflections internally. It has an 86mm front mount so you can conveniently use your wide-angle lens without vignetting.
Key Features

Larger Front Filter Ring to Avoid Vignetting
Rotating Ring to Choose Degree of ND
Provides 1.3 to 6 Stops of Light Control
77mm Variable Neutral Density Filter
Top three reasons we think you will love this filter
Well-built
Precise scaling
Awesome cinematic feel
Includes:

77mm 0.4-1.8 Variable Neutral Density Filter
Protective Case
Front Lens Cap