Key SpecificationsFocal Length: 18-135mm (7.5x zoom range, offering a versatile wide-angle to short-telephoto field of view).Aperture: Variable maximum aperture of f/3.5 at 18mm to f/5.6 at 135mm.Image Stabilization: Dedicated optical Image Stabilizer (IS) to reduce blur from shaky hands.Focus Motor: Micro-motor autofocus system (noticeable by the standard ribbed focus ring, distinct from the later STM or Nano USM updates).Compatibility: Exclusively engineered for Canon APS-C crop-sensor DSLR cameras (like the Rebel / xx0D series, 60D, 70D, and 7D)