Alter 40.5mm Rapid Filter System with Lens Mounting Ring, Black

The Rapid Filter System is a hinged lens filter adapter designed for all levels of photographers & videographers.Get the Solution. Get the ShotEngage & disengage your lens filters in a fraction of a second and keep up with ever-changing light conditions.High Quality, Easy InstallationKeep your filter accessible at all times via the revolutionary hinged design and enjoy the fastest way to engage and disengage your lens filters. Both the RFS & RFS+ are precision machined from aerospace aluminum and include a built-in light shield, preventing light leak.