60 Day 100% money back guarantee. Offered is one Melles Griot Invaritar machine-vision lens assembly marked 59LGC535 and 59LGF412, built around a Fujinon HF35A-2M1 35 mm C-mount lens. The lens barrel has manual focus and iris markings from f/1.7 through f/22, with the attached gauging and telecentric front optic shown in the photographs. This specialized assembly is suitable for industrial imaging, dimensional inspection, gauging, alignment, and machine-vision development. Cosmetic condition is very clean overall, with light handling wear and small amounts of surface dust visible in close-up images. The front and rear glass appear intact in the photographs, but no optical-resolution, focus, iris, or camera test was performed. Includes only the pictured lens assembly; no camera, caps, lighting, mounts, or other accessories are included. Approximate item size is 5.5 x 2.1 x 2.1 inches and weight is 0.83 lb. Please verify part-number and optical compatibility for your application. Keyword Block: melles griot, invaritar, 59lgc535, 59lgf412, hf35a-2m1, telecentric lens, c-mount, machine vision, gauging optic