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The Chrosziel AC-450-22 Flexi-Ring Flexible Step-Down Ring is a 110:50-85mm 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 50-85mm.
Flexible material makes it easily adjustable.
In the Box
Chrosziel AC-450-22 Flex-Ring Flexible Step-Down Ring (110:50-85mm)