Kenlock Auto Zoom Telephoto Lens Appraisal

Kenlock Auto Zoom Telephoto Lens

This is a vintage Kenlock-branded manual focus telephoto zoom lens, likely dating from the late 1970s to the 1980s. The lens features a robust all-metal barrel construction with a semi-matte black finish and three distinct rubberized diamond-patterned grip rings for focusing, zooming, and aperture adjustment. The top ring is marked 'KENLOCK AUTO ZOOM' in white uppercase sans-serif lettering. Below the primary zoom ring are distance scales printed in orange for feet and white for meters, extending to infinity. The focal length indicators suggest a versatile range, with visible markings for 100mm and 135mm. An aperture ring at the base displays f-stops ranging from f/4.5 to f/22. Condition appears to be fair used condition, with visible surface dust in the crevices of the textured grips and minor thinning of the black finish on the edges of the metal barrel typical of age and handling. The lens utilizes a mechanical mount, often found in popular mounts of the era like Pentax K, Canon FD, or Nikon AI, though the specific mount is partially obscured. This type of third-party lens was common in the analog era as a more affordable alternative to primary brand optics.