Standard Sony A-mount kit zoom with SAM autofocus covering 27-82.5mm equivalent.
The Sony DT 18-55mm f/3.5-5.6 SAM II is the standard kit zoom for Sony A-mount APS-C cameras, covering a 27-82.5mm equivalent range. The SAM (Smooth Autofocus Motor) provides quiet, adequate focusing for everyday photography. The Mark II revision brought modest optical improvements over the original version.
Optical quality is typical of kit zoom lenses — acceptable for everyday photography with good centre sharpness at moderate apertures. The lens performs best at 24-35mm where optical designs are least compromised. Stopped down to f/8, results across the zoom range are respectable for web sharing and standard print sizes.
Build quality is consumer-grade with lightweight plastic construction designed to keep kit costs minimal. The compact dimensions complement small Sony A-mount bodies well. The SAM motor provides quieter operation than older screw-drive alternatives, beneficial for video recording where motor noise can be distracting.
On the used market, the DT 18-55mm SAM II is among the most affordable zoom lenses available for any system. For Sony A-mount beginners or anyone needing a basic standard zoom at minimal cost, it provides functional everyday photography capability. Via LA-EA adapters, it works on Sony E-mount mirrorless cameras.