This lever-actuated, continuously variable, cage-system-compatible iris diaphragm is designed to provide smooth operation over many thousands of cycles. This iris is mounted in an ultra-thin, cage-system-compatible plate that engages three cage rods with locking screws that accept a 5/64" (2.0 mm) hex key. The steel leaves within the iris are actuated by a button head lever that clears the fourth cage rod, as shown in the picture to the right, allowing for operation within the cage system. This large iris provides the maximum aperture available for use in a 30 mm cage system and is permanently installed in the cage plate.

Esco Optics, Inc. 95 Chamberlain Road, Oak Ridge, New Jersey 07438 Tel: 1-800-922-3726 | Fax: 1-973-697-3011Sales@EscoOptics.com

In addition to the 30 mm cage system iris sold on this page, we also offer a 60 mm Cage System Iris. Alternatively, our SM-Threaded Ring-Actuated Irises can also be utilized in a 30 mm cage system with the use of an SM1-threaded cage plate. However, the cage system iris featured on this page offers a larger aperture and thinner profile than the equivalent ring-actuated iris. For non-cage system use, we also offer Post-Mounted Irises, SM-Threaded Lever-Actuated Irises, and Unmounted Irises with no mounting holes.

ITAR registered and compliant, Esco manufactures ITAR optics for all of its customers with the strictest confidentiality.

Esco Optics is a leading manufacturer of custom and catalog optics, precision optical components, and ITAR optics in the United States.

As the leader for military and defense optics in the United States, Esco Optics adheres to the International Traffic in Arms Regulations.