Alpha 7R III (ILCE-7RM3A)

Released June 2021

A revised 42.4 MP full-frame E-mount camera with a higher-resolution touchscreen, five-axis stabilisation and 10 fps AF/AE tracking.

Specifications

Camera type: Mirrorless
Sensor format: Full frame
Sensor type: Back-illuminated Exmor R CMOS
Sensor dimensions: 35.9 × 24 mm
Effective resolution: 42.4 MP
Largest image: 7952 × 5304
RAW recording: Yes
Standard ISO range: 100–32000
Sensor detail: Approximately 43.6 million total pixels; 3:2 sensor. Pixel Shift Multi Shooting combines four shifted exposures, requiring a static camera/subject and computer processing.
Image formats: JPEG, RAW and RAW+JPEG; Sony ARW 2.3, including uncompressed RAW.
ISO detail: Standard still-image ISO 100–32000; expanded ISO 50–102400.
Image processor: BIONZ X and front-end LSI.

Lens mount: Sony E-mount
Stabilisation: Sensor shift
Maximum continuous burst: 10 fps
Autofocus: Fast Hybrid AF with 399 full-frame phase-detection points and 425 contrast points. Human and animal Eye AF for stills; phase-point coverage differs with APS-C lenses and crop modes.
Shutter: Focal-plane shutter; 30 seconds to 1/8000 second plus Bulb; flash sync 1/250 second. Electronic first curtain and silent shooting supported.
Burst detail: Up to approximately 10 fps with AF/AE tracking, or approximately 8 fps with live view; Sony claims up to 76 compressed RAW/JPEG or 28 uncompressed RAW frames under its test conditions. Settings and shooting conditions affect actual performance.
Stabilisation detail: Five-axis sensor shift; Sony claims 5.5 stops under CIPA pitch/yaw conditions with Planar T* FE 50mm F1.4 ZA and long-exposure noise reduction off. Correction depends on lens compatibility.

Highest video resolution: 3840 × 2160 at 30 fps
Video detail: 4K 3840 × 2160 recording up to 30p in NTSC mode or 25p in PAL mode; Super 35mm mode provides full-pixel readout without binning, while full-frame 4K is a separate mode. HLG, S-Log2 and S-Log3 supported.
Audio: Stereo microphone; 3.5 mm microphone and headphone sockets.

Viewfinder: Electronic
Screen size: 3″
Screen dots: 2,359,296
Touchscreen: Yes
Tilting screen: Yes
Display detail: This separately marketed ILCE-7RM3A revision has a 2,359,296-dot LCD, compared with 1,440,000 dots on the original ILCE-7RM3. Screen tilts approximately 107° up and 41° down; touch focus and touchpad operation supported.
Viewfinder detail: 0.5-inch Quad-VGA OLED electronic viewfinder with 3,686,400 dots, 100% coverage and approximately 0.78× magnification with a 50 mm lens at infinity.

Wi-Fi: Yes
Bluetooth: Yes
Battery life (maker's claim): 640 photographs
Body weight: 572 g
Release detail: Sony Japan's discontinued-model archive lists June 2021 for ILCE-7RM3A; no precise sale day is claimed. This is a Japanese release month, not a UK date.
Recording media: Two media slots; one UHS-II-compatible SD slot and one SD/Memory Stick slot. Simultaneous and relay recording supported.
Ports: USB Type-C with SuperSpeed USB 5 Gbps, Multi/Micro USB, Micro HDMI, microphone and headphone sockets, sync terminal and Multi Interface Shoe.
Wireless connections: Wi-Fi IEEE 802.11b/g/n at 2.4 GHz, NFC and Bluetooth 4.1.
Battery life detail: NP-FZ100; CIPA approximately 640 photographs using the LCD or 530 using the viewfinder. In-camera charging and power via USB Type-C or Multi/Micro USB.
Dimensions: Approximately 126.9 × 95.6 × 73.7 mm (width × height × maximum depth); grip-to-monitor depth 62.7 mm.
Weight detail: Approximately 572 g body only according to Sony Japan; 657 g with battery and memory card; lens excluded.
Materials: Magnesium-alloy covers and internal frame; dust- and moisture-resistant design, not a waterproof rating.
In the box: Power cord, NP-FZ100 battery, cable protector, BC-QZ1 charger, shoulder strap, body cap, accessory shoe cap, eyepiece cup and USB Type-C cable, according to Sony UK.

Model	Type	Sensor	Megapixels	Lens	Video	Body weight	Released
CanonEOS R3	Mirrorless	Full frame	24.1	Canon RF	6000 × 3164 at 59.94 fps	822 g	Nov 2021
NikonZ 9	Mirrorless	Full frame	45.7	Nikon Z mount	8256 × 4644 at 59.94 fps	1160 g	Dec 2021
CanonEOS R5	Mirrorless	Full frame	45	Canon RF	8192 × 4320 at 29.97 fps	650 g	Jul 2020