Request InfoDocter Optics Inc.Tevidon C-mount lenses from Docter Optics Inc. are designed for CCD area and line cameras with image formats from 1/3 to 1 in. The lenses are of four-, six- and seven-element designs, with focal lengths and speeds from 10 mm f/2.0 to 100 mm f/2.8. They have a manual lockable focus and iris mechanism, and they provide field and color correction for the visible to near-IR range. 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