Sony adds Animal Eye AF to the a6400 with new 2.00 firmware update: Digital Photography Review
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Amazon.com : Sony Alpha a6400 24.2MP Mirrorless Digital Camera with 16-50mm f/3.5-5.6 OSS Lens - Bundle with Camera Case, 32GB SDHC Card, 40.5mm Filter Kit, Cleaning Kit, Card Reader, Memory Wallet, Mac
Sony Alpha a6400 Mirrorless Digital Camera Body (Black)
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Sony released the 2.0 firmware update for the A6400 (Adds real-time Eye AF for animals) – sonyalpharumors