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Sony Alpha 7 III vs Sony Alpha 7C II

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

SonyAlpha 7 IIISonyAlpha 7C II
Overview
ReleasedMarch 2018September 2023
Image and sensor
Camera typeMirrorlessMirrorless
Sensor formatFull frameFull frame
Sensor typeBack-illuminated Exmor R CMOSBack-illuminated Exmor R CMOS
Sensor dimensions35.6 × 23.8 mm35.9 × 23.9 mm
Effective resolution24.2 MP33 MP
Largest image6000 × 40007008 × 4672
RAW recordingYesYes
Standard ISO range100–51200100–51200
Sensor detailApproximately 25.3 million total pixels; 3:2 back-illuminated sensor.Approximately 34.1 million total pixels; optical low-pass filter; maker maximum movie effective resolution 27.6 MP
Image formatsJPEG and Sony ARW 2.3 RAW, including uncompressed RAW. Sony's announcement limits compressed RAW continuous shooting to 12 bits; 14-bit output is not universal in every mode.JPEG, HEIF and RAW (Sony ARW 5.0); 14-bit RAW output; compressed, lossless-compressed and uncompressed RAW options; XAVC S, XAVC S-I and XAVC HS movies
ISO detailStandard still-image ISO 100–51200; expanded ISO 50–204800. Video ISO 100–51200 expands up to ISO 102400.Standard still-image and movie ISO 100–51200; still-image extension ISO 50–204800; movie extension reaches ISO 102400. Photography Blog lists a lower extended maximum; Sony’s explicit specification is used.
Image processorBIONZ X with front-end LSI.BIONZ XR and dedicated AI processing unit
Lens and shooting
Lens mountSony E-mountSony E-mount
StabilisationSensor shiftSensor shift
Maximum continuous burst10 fps10 fps
Lens detail–Interchangeable E-mount; body-only and FE 28–60 mm f/4–5.6 kit offered; the photo shows both body colours with this optional kit lens
AutofocusFast Hybrid AF with 693 phase-detection and 425 contrast-detection points; phase-detection covers approximately 93% of the image area. Eye AF supports continuous AF.Fast Hybrid AF; up to 759 phase-detection points for stills or 627 for movies; EV -4 to 20 at ISO 100 with an f/2 lens; current maker subjects include automatic selection, humans, animals, birds, insects, cars, trains and aircraft
ShutterFocal-plane shutter; 30 seconds to 1/8000 second plus Bulb; electronic first curtain and silent electronic shooting.Electronic first-curtain mechanical shutter up to 1/4000 second; silent electronic shutter up to 1/8000 second; 30-second exposures and Bulb; flash sync 1/160 second full-frame or 1/200 second APS-C with Sony flash
Burst detailUp to approximately 10 fps in Hi+ with AF/AE tracking using mechanical or silent shooting; approximately 8 fps in Hi with live view. Maximum speed depends on settings and lens compatibility. Silent shooting can distort moving subjects. Sony gives buffers of approximately 177 standard JPEG, 89 compressed RAW or 40 uncompressed RAW images under its UHS-II SDXC test conditions.Up to 10 fps Hi+; maker buffer approximately 44 compressed RAW, 27 lossless-compressed RAW or 18 uncompressed RAW images; over 1,000 Fine JPEGs. Amateur Photographer notes 10 fps requires compressed RAW and gives 8 fps live-view continuous or 6 fps with lossless-compressed RAW.
Stabilisation detailFive-axis image-sensor shift; Sony claims 5 stops under CIPA conditions for pitch/yaw with Planar T* FE 50mm F1.4 ZA and long-exposure noise reduction off. Correction depends on the lens.Five-axis sensor shift; maker claim 7 stops under CIPA pitch/yaw testing with the FE 50 mm f/1.2 GM lens and long-exposure noise reduction off; current maker movie modes include Dynamic Active and Active electronic correction
Flash–No built-in flash; Multi Interface Shoe supports compatible external flash
Exposure controls–1200-zone evaluative metering; exposure compensation ±5 EV
Video
Highest video resolution3840 × 2160 at 30 fps3840 × 2160 at 60 fps
Video detailJapanese/NTSC XAVC S 4K at 30p or 24p, approximately 100 or 60 Mbps; the UK PAL specification lists 25p. Full HD reaches 120p in NTSC modes. S-Log2, S-Log3 and HLG supported. Sony specifies different sensor readout at 24p and 30p; PhotographyBlog reports a 1.2× crop at 30p. Continuous recording is limited to approximately 29 minutes.Internal 3840 × 2160 up to 60p NTSC or 50p PAL, with 10-bit 4:2:2 options; 60p/50p requires Super 35 crop. Full-frame 30p is oversampled from approximately 7K; Full HD up to 120p NTSC or 100p PAL. XAVC S-I 4K reaches 600 Mbps at 60p. S-Log3, S-Cinetone, user LUT display and AI Auto Framing; HDMI output supports 10-bit 4:2:2, without RAW video output.
AudioBuilt-in stereo microphone; 3.5 mm microphone and headphone sockets.Built-in stereo microphone; 3.5 mm microphone and headphone sockets; digital-audio Multi Interface Shoe; compatible accessories support four-channel 24-bit LPCM
Screen and viewfinder
ViewfinderElectronicElectronic
Screen size3″3″
Screen dots921,6001,036,800
TouchscreenYesYes
Tilting screenYesYes
Display detailTFT screen tilts approximately 107° up and 41° down; touch focus is supported. Dots count colour subpixels.Side-opening vari-angle touchscreen; opens approximately 176° and rotates approximately 270°; touch menu operation
Viewfinder detail0.5-inch electronic viewfinder; 2,359,296 dots; 100% coverage and approximately 0.78× magnification with a 50 mm lens at infinity.0.39-type XGA OLED; 2,359,296 dots; approximately 0.70× magnification with a 50 mm lens at infinity; 60 or 120 fps refresh
Connections and design
Wi-FiYesYes
BluetoothYesYes
Battery life (maker's claim)710 photographs560 photographs
Body weight565 g429 g
Release detailSony Japan specifies 23 March 2018 for the ILCE-7M3 body and ILCE-7M3K kit, following its 27 February announcement; this is the Japanese sale date, not a UK release claim.Sony Australia specifies retail availability from September 2023. Photography Blog reports the original Alpha 7C remained in the range alongside the II. Current maker specifications include later-supported subject recognition and movie-stabilisation features.
Recording mediaTwo card slots; slot 1 supports UHS-I and UHS-II SD cards, while slot 2 supports UHS-I SD and compatible Memory Stick media.One SD slot supporting UHS-I and UHS-II; no CFexpress support
PortsUSB-C with USB 3.1 Gen 1, Multi/Micro USB, Micro HDMI, microphone and headphone sockets and Multi Interface Shoe.USB-C (USB 3.2 at 5 Gbps), Micro HDMI Type D, 3.5 mm microphone and headphone sockets and digital-audio Multi Interface Shoe
Wireless connectionsWi-Fi IEEE 802.11b/g/n at 2.4 GHz, Bluetooth 4.1 and NFC.Wi-Fi 802.11a/b/g/n/ac at 2.4 and 5 GHz; Bluetooth 4.2; no NFC; Creators’ App remote operation and image transfer
Battery life detailNP-FZ100; approximately 710 photographs with the monitor or 610 with the viewfinder under CIPA conditions.NP-FZ100; current Sony CIPA claim approximately 560 photographs with LCD or 530 with viewfinder; actual movie claim approximately 105 minutes with LCD or 100 with viewfinder. Both launch-period reviews give lower 540/510-shot figures.
ChargingUSB-C or Multi/Micro USB charging and power supply.USB-C in-camera charging and power supply with USB Power Delivery; maker specifies an 18 W or higher USB PD source and 3 A cable
DimensionsApproximately 126.9 × 95.6 × 73.7 mm maximum (width × height × depth); Sony also gives 62.7 mm from grip to monitor.Approximately 124.0 × 71.1 × 63.4 mm; depth from grip to monitor 58.6 mm
Weight detailApproximately 565 g body only; 650 g including battery and memory card; lens excluded.Approximately 429 g body only; 514 g with battery and memory card; both exclude lens. Photography Blog gives 525 g labelled body only and Amateur Photographer gives 524 g; maker’s explicit figures are used.
Materials–Maker specifies recycled materials including SORPLAS in the body, depending on production timing
Colours–Silver/black or black
In the boxNP-FZ100 battery, AC adaptor AC-UUD12, shoulder strap, body cap, accessory shoe cap, eyepiece cup and Micro USB cable, according to Sony Japan.–

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