The Iris Ring from iFootage allows you to achieve nearly perfect round images in varying sizes. This 18-bladed accessory easily slips into the brand's separately-purchased projector lens, enabling full control over the size of the light beam. By expanding and contracting its leaves, the iris lets you adjust the projected circle of light from 0.2 to 2.2 inches. Lightweight Design Made of manganese steel, this accessory is extremely lightweight. Specifications For 40° Standard Bowens Projector Lens 18 Blades Lightweight Design Manganese Steel Construction Compatibility iFootage 40° Standard Bowens Projector Lens Mounting 1x Drop-In Colour Black Material of Construction Manganese Steel Dimensions 14.5 x 9.5 x 0.9 cm Weight 0.090 kg What's Included 1 x iFootage Iris Ring