Sony's groundbreaking stacked-sensor sports camera, the first mirrorless to challenge pro DSLRs.
The Sony A9 launched in 2017 and proved that mirrorless cameras could match or exceed professional DSLRs for sports photography. With a revolutionary stacked CMOS sensor enabling 20fps burst with no viewfinder blackout and no mechanical shutter noise, it redefined what was possible in a mirrorless body.
Key features include the 24.2MP stacked sensor with 693-point phase-detect AF covering 93 percent of the frame, 20fps continuous burst with full AF/AE tracking, completely silent electronic shutter with minimal rolling shutter, 5-axis IBIS, and dual SD card slots. The body is full-size with professional ergonomics.
The A9 was a watershed moment for mirrorless cameras. It was the first mirrorless body that professional sports photographers could seriously consider switching to from Canon and Nikon DSLRs. The stacked sensor eliminated the rolling shutter distortion that had plagued electronic shutters.
Very good value used as the A9 II and A9 III have significantly reduced prices. Check shutter count, IBIS operation, and both card slots. The A9 remains an exceptional sports camera. The 20fps blackout-free experience with 693 AF points is still impressive today.