Sony A7S IV
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Our editorial take on the Sony A7S IV
The Sony A7 IV (not the A7S IV, which appears to have been canceled or delayed) is a 33-megapixel full-frame hybrid that punches well above its $2,499 launch price. Reviewers consistently call it one of Sony's best all-around cameras, thanks to its newly developed Exmor R sensor and BIONZ XR processor inherited from the flagship Alpha 1. It shoots 10 fps stills, 4K 60p video at up to 600 Mbps in 10-bit 4:2:2, and offers advanced features like 759-point Fast Hybrid AF with human, animal, and bird detection, plus 5-axis IBIS rated for 5.5 stops. The resolution bump from the A7 III, combined with S-Log3 and S-Cinetone profiles, makes it a genuinely capable tool for both photography and video work.
Reviewers praise its image quality, versatility, and the sheer amount of tech packed into what Sony positions as an advanced entry-level body. The autofocus and processing engine are consistently highlighted as top-tier. A few note the body can feel cramped when wearing gloves, and at $500 more than the A7 III at launch, it sits at the upper edge of the hybrid midrange. Still, the consensus is clear: this is the best value in Sony's full-frame lineup for creators who need both stills and video chops without stepping up to the $7,000 A1 II.
- 33-megapixel sensor delivers high resolution for stills without sacrificing video performance
- Advanced autofocus with 759 points and real-time subject detection (human, animal, bird) inherited from Alpha 1
- Strong video specs: 4K 60p, 10-bit 4:2:2, 600 Mbps, S-Log3 and S-Cinetone
- 5-axis IBIS rated for 5.5 stops of stabilization
- Excellent value for the feature set compared to flagship models
- Body can feel cramped when wearing gloves in cold weather
- $500 price increase over the A7 III at launch may stretch budgets for some
Synthesized by Geared editors from aggregated expert reviews.
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My main weapon is currently the A1 II, but its trusty sidekick, and the reason I switched systems, is the A7 IV. I haven't traditionally been one to upgrade to the latest model every time a new feature comes out. I prefer to buy a camera, learn its ins and outs, and shoot with it until something truly noteworthy comes to the table. Still, when certain updates are made or features are added, I feel motivated to make a move.
The Alpha 7 IV is specced beyond its price, and it hit everyone by surprise. Its newly-developed 33-megapixel Exmor R sensor and BIONZ XR image processor produces high-quality, lifelike photos with a healthy amount of resolution.
The A7 V is one of Sony’s most versatile all-purpose full-frame cameras, for enthusiasts and pros not looking to spend nearly $7,000 on an A1 II. The new A7 retains a 33-megapixel sensor like the A7 IV before it, but with a partially stacked design like Nikon’s Z6 III.
The A7 IV brings a raft of new features and improvements like a higher-resolution 33-megapixel sensor, improved video specs and updated AI-powered autofocus. However, at $2,500 it's also $500 more than the A7 III was at launch.
The Sony A7 IV takes on winter weather, and the experience is far from basic. The camera delivers a good experience overall, but can feel a bit cramped when wearing gloves, which is frustrating when working in cold weather.
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As I got to test a pre-production camera for two days, I am happy to share my thoughts in this Sony a7 IV review below. Let’s jump right in!
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Specs
- Battery
- NP-FZ100
- Bit Depth
- 10-bit 4:2:2
- Log Profiles
- S-Cinetone, S-Log3, HLG, HLG1-3
- Internal Codecs
- XAVC S, XAVC HS, XAVC S-I
- Max Frame Rate 4k
- 4K 60p
- Max Frame Rate Hd
- 1080 120p
- Max Video Bitrate
- 600 Mbps
- Max Video Resolution
- 4K UHD (3840x2160)
- Anti Dust System
- Yes (charge protection coating on optical filter, and image sensor shift mechanism)
- Color Space Video
- Rec. ITU-R BT.2100 standard compatible (BT.2020 gamut)
- Video Compression
- XAVC S: MPEG-4 AVC/H.264, XAVC HS: MPEG-H HEVC/H.265
- Color Space Stills
- sRGB standard (with sYCC gamut), Adobe RGB standard and Rec. ITU-R BT.2100 standard (BT.2020 gamut)
- Dynamic Range Video
- 15+ stops
- Dynamic Range Stills
- 15 stops
- Audio Recording Format
- LPCM 2 ch (48 kHz 16 bit), LPCM 2 ch (48 kHz 24 bit), LPCM 4 ch (48 kHz 24 bit), MPEG-4 AAC-LC 2 ch
- Shutter Sync Speed Flash
- 1/250 s (35 mm full frame), 1/320 s (APS-C)
- Usb Streaming Audio Format
- LPCM 2 ch (16 bit 48 kHz)
- Usb Streaming Video Resolution
- 3840 x 2160 (15p / 12.5p) / 1920 x 1080 (60p / 50p / 30p / 25p) / 1280 x 720 (30p / 25p)
- Electronic Front Curtain Shutter
- Yes (ON/OFF)
- Sensor Size
- Full frame (35.9 x 23.9 mm)
- Sensor Type
- Exmor R CMOS sensor
- Image Processor
- BIONZ XR
- Effective Megapixels
- 33.0 megapixels
- Launch Price Usd
- 2499.99
- Iso Range Video
- ISO 100-51200 (expanded ISO up to 102400)
- Iso Range Stills
- ISO 100-51200 (expanded ISO 50 to 204800)
- Continuous Shooting
- 10 fps
- Shutter Speed Electronic
- 1/8000 to 30 s, Bulb
- Shutter Speed Mechanical
- 1/8000 to 30 s, Bulb
- Viewfinder
- 1.3 cm (0.5 type) electronic viewfinder (Quad-VGA OLED), 3 686 400 dots, 0.78x magnification
- Rear Screen
- 2.95 inch (3.0-type) wide type TFT, 1 036 800 dots
- Touchscreen
- Yes
- Lens Mount
- Sony E
- Usb
- USB Type-C
- Card Slots
- 1x Multi slot for SD (UHS-I/II compliant) / CFexpress Type A, 1x SD (UHS-I/II compliant)
- Ibis
- 5-axis, 5.5 stops
- Af Points
- 759 points (phase-detection AF)
- Af System
- Fast Hybrid AF
- Af Low Light
- -4 EV
- Subject Detection
- Human (Right/Left Eye Select) / Animal (Right/Left Eye Select) / Bird
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