The LMVZ990-IR C-Mount 9-90mm Varifocal Lens from Kowa is designed for use with 1/2" sensors. This lens has a varifocal length of 9-90mm and an aperture range of f/1.8 to 360. This lens is IR corrected for use with day/night cameras, and it features an aspherical design to achieve a clear image at its periphery.
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Nice quality metal body Smooth firm adjustments with the zoom in zoom out & iris. Very clear optics. Using this as a night vision sight lens. Very pleased with my purchase. No negatives for what I'm using it for. Other then water proofing. I wish some one would have givin this to me. I wouldn't of had to purchase it and be able to right this reveiw. But that also wouldn't stop me from buying another one! GREAT LENS! Price point is right at a good deal for a great lens. Happy Shooting S Grant