Hama 49mm Vario Neutral-Density Filter ND2-400

The Hama 49mm Vario Neutral Density Filter ND2 400 has a number of benefits, not only does it protect your lens from dust and scratches but it also allows you control the amount of light passing through your lens by as much as 8 exposure stops. By rotating the end of the lens you are able to control the amount of light between 1 and 8 stop values that enters the lens. For instance, f4 instead of f8 for selective sharpness instead of great depth of field, or 115s instead of 160s for a smooth, blurred water effect instead of a frozen' waterfall.