Sony A7 IV

The Sony Alpha 7 IV is a 33-megapixel full-frame mirrorless camera with a 35.9 x 23.9 mm CMOS sensor, BIONZ XR processor, 425-point autofocus, 4K UHD video up to 60fps full-frame (or 4K/120fps in APS-C crop), 5-axis in-body image stabilisation, dual card slots (CFexpress Type A + SD UHS-II), weather sealing, and a fully articulating touchscreen — all in a 658-gram magnesium body.

Key Specifications

• Sensor: 33MP full-frame CMOS (35.9 x 23.9 mm), crop factor 1.0
• Processor: BIONZ XR
• Autofocus: 425 phase-detect AF points with real-time tracking
• ISO Range: 100–51,200 (extended to 204,800)
• Burst Speed: 10 fps at full resolution
• Video: 4K UHD (3840×2160) up to 60fps full-frame (from 7K oversampled readout); 4K/120fps in APS-C crop; clean HDMI Type A output; XAVC S / XAVC HS formats
• Stabilisation: 5-axis in-body image stabilisation
• Storage: Dual slots — CFexpress Type A + SD (UHS-II)
• Viewfinder: 3,686,000-dot EVF, 0.78× magnification, 100% coverage
• Connectivity: Wi-Fi, Bluetooth, full-size HDMI (Type A), 3.5mm mic + headphone jack, USB-C Power Delivery
• Weather sealing: Yes — dust and moisture resistant magnesium alloy body
• Battery: NP-FZ100, rated ~670 shots per charge; USB charging supported
• Lens mount: Sony E (FE mount), full-frame compatible

What makes the Sony A7 IV special?

The Sony Alpha 7 IV sits in a crowded full-frame mirrorless segment, but it earns its place by doing almost everything well. Start with that 33MP sensor — it gives you noticeably more resolution than the 24MP A7 III without tipping into the territory of enormous RAW files that slow your workflow to a crawl. The DXO score of 97 reflects a sensor with 14.7 stops of dynamic range, 25.4 bits of colour depth, and a low-light ISO score of 3,379 — measurements that matter when you're shooting dimly lit receptions or golden-hour landscapes.

Compare it to the Sony A7 V and the differences are meaningful but not deal-breaking for most shooters: the A7 V brings a more capable silent shutter and a faster burst, but the A7 IV's 10 fps is genuinely fast enough for most action and portrait work. Against the Sony A7R V, the trade-off flips — the R V delivers 61MP for studio-level detail, but the A7 IV is faster, lighter on storage, and better balanced for hybrid photo-video work. The Sony A7C II shares a similar sensor but trades the proper EVF and ergonomics for a smaller body.

On the video side, the A7 IV records 4K UHD from a 7K oversampled readout, with a clean HDMI Type A output for external monitoring and reliable codec options in XAVC S and XAVC HS (H.265).