The Sony 18-135mm family, available in both DT (SAM) and E (OSS) variants, is a versatile mid-range zoom that has long been popular as an all-in-one solution for APS-C photographers. Covering an 18-135mm focal range (approximately 27-202.5mm equivalent on APS-C), the lens delivers practical reach from wide-angle landscapes to short tele portraits without frequent lens changes, making it an excellent travel companion. Optical designs across versions include a mix of extra-low dispersion and aspherical elements to keep chromatic aberration and distortion under control. The E-mount variant adds Optical SteadyShot (OSS) stabilization and a modern linear/stepper motor for quieter, more video-friendly autofocus. The DT SAM variant uses Sony's Smooth Autofocus Motor offering smooth AF performance on compatible DSLR bodies. Internal focusing, a rounded 7-blade diaphragm and compact dimensions emphasize handling and pleasing background rendering. While the variable maximum aperture means it is not a specialist low-light lens, the balance of focal range, image correction and relative affordability make the 18-135mm family a strong everyday and travel zoom for enthusiasts and hybrid stills/video shooters.
Mount | F |
Format | aps-c |
Weight (g) | ~326 (E) / ~397 (DT) |
lens groups | varies by version (11-12 groups) |
lens elements | varies by version (14-16 elements) |
Diaphragm blades | 7 |
Filter thread (mm) | 55 (E) / 62 (DT) |
Maximum aperture | f/3.5-5.6 |
Minimum aperture | f/22-36 |
Max focal length (mm) | 135 |
Min focal length (mm) | 18 |
Image stabilization | Varies (Optical SteadyShot (OSS) on E version; no OSS on some DT/SAM variants) |
maximum magnification | 0.29 |
Min focus distance (m) | 0.45 |