The Chrosziel AC-450-20 Flexi-Ring Flexible Step-Down Ring is a 110:75-98mm adjustable step-down ring. The ring is designed to work with their MB-450 series of mattebox and will fit a variety of wideangle attachment lenses.
Compatible with MB-450 mattebox system for wideangle attachment lenses between 75-98mm.
Flexible material makes it easily adjustable.
Front Lens Diameter
Chrosziel AC-450-20 Flex-Ring Flexible Step-Down Ring (110:75-98mm)