The magnesium alloy bodied Sony A7 IV is slightly bigger, thicker and ever so slightly heavier than the 3-year-old Mark III that it replaces, but it's still quite small and slender overall, measuring 131.3 mm x 96.4 mm x 79.8 mm and weighing 658g without a lens, battery and memory card fitted, a mere 8g more than the A7 III. In terms of its external design, instead of following in its older brother's footsteps, as the previous A7 III did, the new A7 IV has almost exactly the same body design and uses the same heatsink system as the A7S III video-centric camera. The Sony A7 IV is available now priced at around £2399 / $2499 body only or £2599 / $2699 with the Sony FE 28-70mm f3.5-5.6 OSS kit lens. The Alpha A7 IV offers the fastest 5GHz Wi-Fi and Bluetooth 4.2 connectivity, in-camera USB streaming, dual UHS-II SD-cards and CFexpress Type A memory card slots, 610-shot battery life and USB-C charging. Other key features include 10fps burst shooting with full AF/AE tracking, a 3.69m-dot EVF with 0.78x magnification and a refresh rate of up to 120fps, and a fully articulating 3-inch 1.03-million-dot LCD screen with improved touchscreen functionality. The Sony A7IV supports Real-time Tracking AF and also Human, Animal and Bird Eye AF, all for both stills and movies, making it the first Sony camera to offer such comprehensive AF support for both shooting modes. The Alpha A7 IV boasts a dust and moisture-resistant magnesium alloy body with built-in image stabilisation worth up to 5.5 shutter speed stops, an ISO range of 50-204,800, and a hybrid auto focus system with 759 on-sensor phase-detect points supported by 425 contrast detect points that work down to -4EV. It can record Full 1080 HD at up to 120fps and supports the S-Cinetone, HLG, S-Log3 and S-Log2 profiles. The A7IV has a brand new 33 megapixel EXMOR R back-illuminated full-frame sensor with an optical low-pass filter, the latest flagship-class BIONZ XR processor, and offers a dynamic range of 15+ stops at low sensitivity settings.ĤK UHD video recording is available in the XAVC S-I format at up to 60fps at 4:2:2 color depth in 10-bit to the inserted memory card or over HDMI to compatible third party recorders with either Long GOP or All-Intra frame encoding. The Sony A7 IV is a mid-range 35mm full-frame mirrorless camera that replaces the very popular 3-year-old Alpha A7 III model.
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