The 18-135mm f/ 3.5-5.6 Telephoto Zoom Lens from Sony covers some very frequently used focal lengths between 18mm and 135mm. It is a Sony Alpha lens that has been optimized for cropped image sensors, and as a result it is not recommended for use with larger full-frame cameras. That means its 18-135mm focal length is the 35mm equivalent of a longer 27-202mm telephoto zoom lens. It is constructed of 11 elements in 9 groups, with two aspherical elements and a single Extra-low Dispersion (ED) glass element, which all help to deliver sharp, clear photos throughout the zoom range. It has a minimum focusing distance of 1.4' and a front-end filter diameter of 55mm.
Sony's Direct Manual Focus (DMF) allows you to easily switch between AF and MF without even having to remove your eyes from the viewfinder. The lens also provides a smooth and quiet AF thanks to the Smooth Autofocus Motor (SAM) built into it, which also improves AF response when shooting moving subjects.
| Performance | |
|---|---|
| Focal Length |
18 - 135 mm Comparable APS-C Focal Length: 27 - 202.5 mm |
| Aperture |
Maximum: f/3.5 - 5.6 Minimum: f/22 - 36 |
| Camera Mount Type | Sony Alpha, Minolta AF |
| Format Compatibility | DSLR (APS-C Sensor) |
| Angle of View | Not Specified By Manufacturer |
| Minimum Focus Distance | 1.42' (43.28 cm) |
| Magnification | 0.25x |
| Groups/Elements | 11/14 |
| Diaphragm Blades | 7 |
| Features | |
|---|---|
| Image Stabilization | No |
| Autofocus | Yes |
| Tripod Collar | No |
| Physical | |
|---|---|
| Filter Thread | Front: 62 mm |
| Dimensions (DxL) | Approx. 3 x 3.5" (7.62 x 8.89 cm) |
| Weight | 14.00 oz (397 g) |