Sony ILCE6400/B Alpha a6400 4K Mirrorless Camera (Renewed)

The Sony Alpha a6400 packs serious performance into a compact mirrorless body built around a 24.2-megapixel APS-C Exmor CMOS sensor. Its headline feature is the advanced autofocus system, which combines 425 phase-detection and 425 contrast-detection points across 84% of the sensor to achieve an industry-leading 0.02-second acquisition speed. Real-time Eye AF works on both humans and animals in still photo and video modes, while real-time object tracking uses AI-based algorithms to hold focus on moving subjects with remarkable tenacity. At 11 frames per second with continuous AF, the a6400 is built to capture action that lesser cameras would miss.

On the video side, the a6400 records oversampled 4K footage with full pixel readout and no recording time limit, a feature that has made it a favorite among vloggers and content creators. The 180-degree tiltable touchscreen LCD lets you monitor framing while filming yourself, and the camera supports S-Log2, S-Log3, and HLG gamma profiles for flexible color grading in post-production. Connectivity includes Wi-Fi, Bluetooth, NFC, micro-USB, and micro-HDMI for both wireless transfer and clean external video output. As a renewed unit, this camera has been professionally inspected and tested to perform like new, offering a cost-effective entry into Sony's acclaimed mirrorless ecosystem.