Edmund Industrial Optics Inc. has released a line of metal parabolic reflectors that direct and focus incident collimated light at 30°, 60° or 90° off axis. The λ/4 aluminum 6061-T6 substrate parabolic mirrors have diameters of 25.4 or 50.8 mm and focal lengths from ~25 to more than 150 mm. They feature protected aluminum coatings for visible applications or protected gold coatings for use in FLIR test systems, and a 6-32 TPI tapped hole for simple and accurate mounting. Mounting plates are available separately. The devices find application as collimators in Schlierien and MTF systems and as laser beam expanders.