An all-arounder that pushes beyond basic, the Sony Alpha a7 IV does double duty with strong stills and video performance. An advanced hybrid mirrorless camera, the a7 IV has the resolution and AF performance that appeals to photographers along with robust 4K 60p video recording for filmmakers and content creators.
The newly developed 33MP Exmor R CMOS sensor pairs with the BIONZ XR processor from the Alpha 1 to achieve quick shooting up to 10 fps and 4K 60p video recording, along with broad sensitivity up to ISO 51200 and a wide 15+ stop dynamic range. Beyond image quality, the sensor and processor also contribute to an advanced AI-based AF system that supports Real-time Eye AF and Real-time Tracking for intuitive AF control and subject tracking.
This fourth-generation of the a7 camera also sports an updated body design that houses a higher resolution 3.68m-dot EVF, vari-angle touchscreen LCD, and dual memory card slots, including one dual CFexpress Type A/SD UHS-II slot. Connectivity and streaming are also a key attribute of this camera, and it supports a simple plug-and-play design for live streaming directly from the camera when connected to a computer via USB.
Newly developed 33MP Exmor R full-frame sensor features a back-illuminated design that promotes high clarity, low noise, and vivid color rendering. This design benefits working in low-light conditions and works in conjunction with a broad sensitivity range of ISO 100-51200. The sensor's design also achieves an impressive dynamic range of approximately 15 stops and files can be recorded in raw, JPEG, or the 10-bit HEIF format.
Using the flagship-class BIONZ XR engine, high-speed image processing capabilities are available for fast continuous shooting, 4K video recording, and advanced AF tracking performance. The quick processing also helps to reduce rolling shutter and other motion distortions for clean rendering of moving subjects.
In terms of shooting speeds, the sensor and processor enable up to 10 fps shooting, using either the mechanical or electronic shutter and with AF/AE enabled. Also, the buffer permits recording up to 828 consecutive uncompressed raw + JPEG frames when using a CFexpress Type A card.
Suiting working with flash while photographing fast-moving subjects, P-TTL flash metering is possible in between each exposure when working with lo, mid, or even hi-speed continuous shooting modes. This helps to maintain stable illumination if making low-light bursts and greatly benefits working in changing light or low-light conditions. The updated flash control system also helps to reduce flash trigger lag, uses the camera's AWB information for natural color rendering, and supports adjusting select flash and transmitter units directly from the camera's interface.
Covering approximately 94% of the image area, a Fast Hybrid AF system incorporates 759 phase-detection points for quick and precise focusing in a variety of lighting conditions with sensitivity down to -4 EV. This focusing system is available for use in all recording modes, to benefit both video and stills applications.
Borrowing from the flagship AF system, the a7 IV has tuned tracking and subject detection capabilities that lock onto subjects quickly and refines focus accurately on recognized eyes and faces of subjects:
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Imaging
Lens Mount | Sony E |
Sensor Type | 35.9 x 23.9 mm (Full-Frame) CMOS |
Sensor Resolution | Actual: 34.1 Megapixel Effective: 33 Megapixel |
Crop Factor | None |
Aspect Ratio | 1:1, 3:2, 4:3, 16:9 |
Image File Format | JPEG, Raw, HEIF |
Bit Depth | 14-Bit |
Image Stabilization | Sensor-Shift, 5-Axis |
Exposure Control
ISO Sensitivity | Auto, 100 to 51200 (Extended: 50 to 204800) |
Shutter Speed | 1/8000 to 30 Second Bulb Mode |
Metering Method | Center-Weighted Average, Highlight Weighted, Multiple, Spot |
Exposure Modes | Aperture Priority, Manual, Program, Shutter Priority |
Exposure Compensation | -5 to +5 EV (1/3 EV Steps) |
Metering Range | -3 to 20 EV |
White Balance | Auto, Cloudy, Color Temperature, Color Temperature Filter, Custom, Daylight, Flash, Fluorescent (Cool White), Fluorescent (Day White), Fluorescent (Daylight), Fluorescent (Warm White), Incandescent, Shade, Underwater |
Continuous Shooting | Up to 10 fps at 33 MP for up to 828 Frames (Raw) / Unlimited Frames (JPEG) |
Interval Recording | Yes |
Self-Timer | 2/5/10-Second Delay |
Video
Recording Modes | H.265/XAVC HS 4:2:2 10-Bit UHD 4K (3840 x 2160) at 23.976p/50p/59.94p [50 to 200 Mb/s] H.265/XAVC HS 4:2:0 10-Bit UHD 4K (3840 x 2160) at 23.976p/50p/59.94p [30 to 150 Mb/s] H.264/XAVC S-I 4:2:2 10-Bit UHD 4K (3840 x 2160) at 23.976p/25p/29.97p/50p/59.94p [240 to 600 Mb/s] Full HD (1920 x 1080) at 23.976p/25p/29.97p/50p/59.94p [89 to 222 Mb/s] XAVC S 4:2:2 10-Bit UHD 4K (3840 x 2160) at 23.976p/25p/29.97p/50p/59.94p [100 to 200 Mb/s] Full HD (1920 x 1080) at 23.976p/25p/29.97p/50p/59.94p [50 Mb/s] XAVC S 4:2:0 8-Bit UHD 4K (3840 x 2160) at 23.976p/25p/29.97p/50p/59.94p [60 to 150 Mb/s] Full HD (1920 x 1080) at 23.976p/25p/29.97p/50p/59.94p/100p/119.88p [16 to 100 Mb/s] |
External Recording Modes | 4:2:2 10-Bit UHD 4K (3840 x 2160) at 23.976p/25p/29.97p/50p/59.94p Full HD (1920 x 1080) at 23.976p/50p/59.94p Full HD (1920 x 1080) at 50i/59.94i 4:2:0 8-Bit UHD 4K (3840 x 2160) at 23.976p/25p/29.97p/50p/59.94p Full HD (1920 x 1080) at 23.976p/50p/59.94p Full HD (1920 x 1080) at 50i/59.94i |
Recording Limit | Unlimited |
Video Encoding | NTSC/PAL |
Audio Recording | Built-In Microphone (Stereo) External Microphone Input (Stereo) |
Audio File Format | AAC, Linear PCM (Stereo) |
Live Streaming | Yes |
Webcam Functionality | Yes |
Focus
Focus Type | Auto and Manual Focus |
Focus Mode | Continuous-Servo AF (C), Direct Manual Focus (DMF), Manual Focus (M), Single-Servo AF (S) |
Autofocus Points | Phase Detection: 759 Contrast Detection: 425 |
Autofocus Sensitivity | -4 to +20 EV |
Viewfinder
Viewfinder Type | Electronic (OLED) |
Viewfinder Size | 0.5" |
Viewfinder Resolution | 3,680,000 Dot |
Viewfinder Eye Point | 23 mm |
Viewfinder Coverage | 100% |
Viewfinder Magnification | Approx. 0.78x |
Diopter Adjustment | -4 to +3 |
Monitor
Size | 3.0" |
Resolution | 1,036,800 Dot |
Display Type | Free-Angle Tilting Touchscreen LCD |
Flash
Built-In Flash | No |
Flash Modes | Auto, Fill Flash, Hi-Speed Sync, Off, Rear Sync, Red-Eye Reduction, Slow Sync |
Maximum Sync Speed | 1/250 Second |
Flash Compensation | -3 to +3 EV (1/3, 1/2 EV Steps) |
Dedicated Flash System | TTL |
External Flash Connection | Hot Shoe |
Interface
Media/Memory Card Slot | Slot 1: CFexpress Type A / SD (UHS-II) Slot 2: SD/SDHC/SDXC (UHS-II) |
Connectivity | HDMI A (Full Size), USB Type-C (USB 3.2 Gen 2), USB Micro-B (USB 2.0), 3.5mm Microphone, 3.5mm Headphone |
Wireless | Wi-Fi Bluetooth |
GPS | No |
Environmental
Operating Temperature | 32 to 104°F / 0 to 40°C |
Physical
Battery | 1 x NP-FZ100 Rechargeable Lithium-Ion, 7.2 VDC, 2280 mAh (Approx. 520 Shots) |
Dimensions (W x H x D) | 5.2 x 3.8 x 3.1" / 131.3 x 96.4 x 79.8 mm |
Weight | 1.4 lb / 658 g (Body with Battery and Memory) |