Edmund Optics 83949 Blue Series M12 Lenses Bandpass Filter and the iris setting is

and the iris setting is secured by a locking thumb screw

Midwest Optical Systems BN880-34 Narrow Near-IR Bandpass M34 Narrow Bandpass Filters

UI-5252LE-M Rev

Smart Vision Lights ODL300-850-L

Edmund Optics 83949 Blue Series M12 Lenses Bandpass Filter and the iris setting isEdmund Optics 83949 Blue Series M12 Lenses 5mm FL f 8 Blue M12 MicroVideo Lens TECHSPEC Blue Series M12 Lenses feature high resolution performance, along with the same great versatility of our TECHSPEC Green Series M12 Lenses. Each lens consists of several precision glass elements mounted in a compact, aluminum housing. These lenses can connect to C Mount cameras using the M12 x 0. 5 Adapter for C Mount Cameras (#53 675) or the M12 x 0. 5 C Mount