canon efs 18 135mm

The Canon EF‑S 18‑135mm covers 18–135mm. On Canon APS‑C bodies (1.6× crop factor) that is approximately 28.8–216mm in 35mm-equivalent terms.

The maximum aperture is f/3.5 at the wide (18mm) end and narrows to f/5.6 at the telephoto (135mm) end — listed as f/3.5–5.6.

The lens uses a 16‑element, 12‑group optical design that includes one UD element and one aspherical element. It has a rounded 7‑blade diaphragm to help produce smoother out‑of‑focus highlights.

The listed minimum focus distance is 1.28 feet (39 cm), with a maximum reproduction ratio of 0.28×.

The lens is described as a versatile all‑purpose zoom suitable for landscapes, portraits and sports video. It’s promoted for both stills and movie capture due to its focal‑length range and AF/video features.