Magnetic Filter System for Faster Photography The SZ Filters Magnetic Filter System allows photographers and filmmakers to instantly attach or remove filters without screwing them on. The magnetic ring attaches to your lens while the second ring attaches to your filter, allowing filters to snap on and off in seconds. Perfect for fast shooting environments such as concerts, events, filmmaking, and creative photography.Magnetic Filter System for Faster Photography The SZ Filters Magnetic Filter System allows photographers and filmmakers to instantly attach or remove filters without screwing them on. The magnetic ring attaches to your lens while the second ring attaches to your filter, allowing filters to snap on and off in seconds. Perfect for fast shooting environments such as concerts, events, filmmaking, and creative photography.