Tamron is one of the top independent Japanese lens manufacturers, and its Adaptall range of interchangeable-mount lenses can be used on a wide variety of cameras – including both classic and modern types – with the appropriate lens mount (one included with lens is for the Pentax K). Can be adapted to mirrorless with the appropriate K mount adapter). This is a very solid telephoto zoom, with powerful macro close focus and multicoated glass, in good condition, comes with a pristine leather case, front & rear lens caps. Has a built in retractable lens hood. Priced to sell and cross posted.