Sigma's early 70-200mm f/2.8 for Sony A — the non-OS APO version with macro.
The Sigma 70-200mm f/2.8 EX APO for Sony A mount is the A-mount version of Sigma's non-stabilised constant aperture telephoto zoom described across multiple other mount listings. The constant f/2.8 provides professional speed. APO elements control chromatic aberration. Benefits from Sony body-based SteadyShot stabilisation.
Optical performance is good. Centre sharpness is very good from f/2.8. The constant aperture provides consistent exposure. APO elements control CA. The Sony body SR compensates partially for the lack of in-lens OS. Bokeh is smooth at wider apertures. Screw-drive or HSM AF depending on specific version.
Sony A mount. Filter thread is 77mm. Weight is approximately 1,370 grams. Build quality is solid EX professional. Benefits from Sony SteadyShot body stabilisation — a significant advantage over unstabilised use. Tripod collar included. The A-mount system is discontinued.
Very affordable on the used market. Check AF and smooth zoom. The body SR partially compensates for no lens IS. A constant f/2.8 telephoto at very low A-mount pricing. Adapts to E-mount via LA-EA adapters. Best for well-lit sports and events where the constant aperture matters.