Sony's mid-range SLT camera with translucent mirror, 16.1MP APS-C sensor, and 12fps continuous burst.
The Sony A57 (SLT-A57) launched in 2012 as a mid-range APS-C camera using Sony's Translucent Mirror Technology. The fixed semi-transparent mirror enables 12fps continuous shooting with continuous phase-detect AF — exceptional burst performance for a mid-range camera of its era.
The 16.1MP APS-C Exmor CMOS sensor delivers good image quality with decent dynamic range. The SLT mirror costs approximately 1/3 stop of light. 15-point AF system with 3 cross-type points. Full HD 1080p 60i video with continuous AF — a strength of the SLT design.
A-mount lens system. 3-inch tilting LCD. Built-in EVF at 1.44M dots. In-body SteadyShot stabilisation. Built-in flash. 618g with battery. USB charging. Compatible with the full range of Sony A-mount and Minolta AF lenses.
Available used very cheaply. The 12fps burst was headline-grabbing but A-mount is discontinued. SLT mirror is reliable but delicate — avoid touching. Any modern mirrorless camera is significantly better. Good for users with existing A-mount lens collections.