Tamron AF 18-270mm f/3.5-6.3 PZD All-In-One Zoom Lens with Built in Motor for Sony DSLR Cameras (Model B008S) - International Version (No Warranty) 18-270mm focal length 27-405mm equivalent focal length on APS-C cameras, 28.8-432mm equivalent focal length on Canon APS-C cameras F3.5-6.3 maximum aperture; F22-40 minimum Micromotor-type AF motor without full-time manual focusing