Tiffen 40.5mm Neutral Density 0.3 Filter Manfrotto 366B functionality can also be accessed

functionality can also be accessed using the front-panel controls

availability

0 full speed ports for additional desktop expansion Easy to set up and use

and there's also fully adjustable tension control

Tiffen 40.5mm Neutral Density 0.3 Filter Manfrotto 366B functionality can also be accessed0. 3 Solid Neutral Density Filter 2x Filter Factor, +1 Stop Darkens Entire Image Allows Reduced Shutter Speed Allows Wider Aperture ColorCore Technology 40. 5mm Front Filter Threads Plastic Case The Tiffen 40. 5mm Neutral Density 0. 3 Filter is a solid ND filter with a 2x filter factor that provides a 1 stop exposure reduction. Its 0. 3 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter