Sony Alpha 7C II vs Sony Alpha 7S III

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

Better figure, where one is clearly better

Alpha 7C II compared with Alpha 7S III
SonyAlpha 7C IISonyAlpha 7S III
Overview
ReleasedSeptember 2023September 2020
Image and sensor
Camera typeMirrorlessMirrorless
Sensor formatFull frameFull frame
Sensor typeBack-illuminated Exmor R CMOSBack-illuminated Exmor R CMOS
Sensor dimensions35.9 × 23.9 mm35.6 × 23.8 mm
Effective resolution33 MP12.1 MP
Largest image7008 × 46724240 × 2832
RAW recordingYesYes
Standard ISO range100–5120080–102400
Sensor detailApproximately 34.1 million total pixels; optical low-pass filter; maker maximum movie effective resolution 27.6 MPApproximately 12.9 million total pixels; 3:2 sensor; anti-static coating and ultrasonic dust reduction
Image formatsJPEG, 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 moviesJPEG, 10-bit HEIF and compressed or uncompressed 14-bit RAW (Sony ARW 4.0); XAVC S, XAVC S-I and XAVC HS movies
ISO detailStandard 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.Standard still-image and movie ISO 80–102400; still-image extension ISO 40–409600; movie extension reaches ISO 409600
Image processorBIONZ XR and dedicated AI processing unitBIONZ XR
Lens and shooting
Lens mountSony E-mountSony E-mount
StabilisationSensor shiftSensor shift
Maximum continuous burst10 fps10 fps
Lens detailInterchangeable 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 lensInterchangeable E-mount; full-frame FE lenses use the whole sensor; APS-C still-image crop available. ILCE-7SM3 is supplied without a lens.
AutofocusFast 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 aircraftFast Hybrid AF with 759 phase-detection and 425 contrast-detection points in full-frame stills; detection range EV -6 to 20 at ISO 100 with an f/2 lens; Real-time Tracking and human Eye AF in stills and video; animal Eye AF for stills
ShutterElectronic 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 flashMechanical or silent electronic focal-plane shutter; 30 seconds to 1/8000 second plus Bulb; flash sync 1/250 second with Sony flash; selectable electronic first curtain
Burst detailUp 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.Up to 10 fps Hi+ with AF/AE tracking, 8 fps Hi with live view, 6 fps Mid or 3 fps Lo; Sony claims over 1,000 uncompressed RAW images at 10 fps with a CFexpress Type A card
Stabilisation detailFive-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 correctionFive-axis sensor-shift correction; maker claim 5.5 stops under CIPA pitch/yaw testing with the FE 50 mm f/1.4 ZA lens and long-exposure noise reduction off; Active movie mode adds electronic correction and narrows the view
FlashNo built-in flash; Multi Interface Shoe supports compatible external flashNo built-in flash; Multi Interface Shoe supports compatible external flash; flash unavailable with electronic shutter
Exposure controls1200-zone evaluative metering; exposure compensation ±5 EV1200-zone evaluative metering; program, aperture priority, shutter priority and manual modes; exposure compensation ±5 EV, or ±3 EV using the dedicated dial
Video
Highest video resolution3840 × 2160 at 60 fps3840 × 2160 at 120 fps
Video detailInternal 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.Internal 3840 × 2160 up to 120p NTSC or 100p PAL with 10-bit 4:2:2 options; 120p crops the view by approximately 10%. XAVC S/HS reaches 280 Mbps at 120p; XAVC S-I All-Intra reaches 600 Mbps at 60p. S&Q supports Full HD 240 fps capture with 1420 × 804 sensor readout. HDMI can output 4264 × 2408 16-bit RAW at up to 60p to a compatible external recorder. S-Log2/S-Log3, HLG, timecode and gamma display assist; current Sony specifications include S-Cinetone.
AudioBuilt-in stereo microphone; 3.5 mm microphone and headphone sockets; digital-audio Multi Interface Shoe; compatible accessories support four-channel 24-bit LPCMBuilt-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 dots1,036,8001,440,000
TouchscreenYesYes
Tilting screenYesYes
Display detailSide-opening vari-angle touchscreen; opens approximately 176° and rotates approximately 270°; touch menu operationSide-opening vari-angle LCD; opens approximately 176° and rotates approximately 270°; touch menus and focus selection
Viewfinder detail0.39-type XGA OLED; 2,359,296 dots; approximately 0.70× magnification with a 50 mm lens at infinity; 60 or 120 fps refresh0.64-type Quad-XGA OLED; 9,437,184 dots; 100% coverage; approximately 0.90× magnification with a 50 mm lens at infinity; 60 or 120 fps refresh
Connections and design
Wi-FiYesYes
BluetoothYesYes
Battery life (maker's claim)560 photographs600 photographs
Body weight429 g (better)614 g
Release detailSony 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.Sony USA specifies September 2020 retail availability. This is ILCE-7SM3 with current maker-supported specification features.
Recording mediaOne SD slot supporting UHS-I and UHS-II; no CFexpress supportTwo combined CFexpress Type A/SD slots, each supporting UHS-I and UHS-II SDHC/SDXC; simultaneous, relay or separate-format recording
PortsUSB-C (USB 3.2 at 5 Gbps), Micro HDMI Type D, 3.5 mm microphone and headphone sockets and digital-audio Multi Interface ShoeFull-size HDMI Type A, USB-C (USB 3.2 at 5 Gbps), Multi/Micro USB, 3.5 mm microphone and headphone sockets, digital-audio Multi Interface Shoe and vertical-grip connector
Wireless connectionsWi-Fi 802.11a/b/g/n/ac at 2.4 and 5 GHz; Bluetooth 4.2; no NFC; Creators’ App remote operation and image transferWi-Fi 802.11a/b/g/n/ac at 2.4 and 5 GHz; Bluetooth 5.0; NFC; FTP transfer and smartphone remote control; 5 GHz availability varies by region
Battery life detailNP-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.NP-FZ100; CIPA maker claim approximately 600 photographs using LCD or 510 using viewfinder; actual movie claim approximately 95 minutes with LCD or 80 with viewfinder
ChargingUSB-C in-camera charging and power supply with USB Power Delivery; maker specifies an 18 W or higher USB PD source and 3 A cableUSB-C in-camera charging and power supply with USB Power Delivery support
DimensionsApproximately 124.0 × 71.1 × 63.4 mm; depth from grip to monitor 58.6 mmApproximately 128.9 × 96.9 × 80.8 mm; depth from grip to monitor 69.7 mm
Weight detailApproximately 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.Approximately 614 g body only; 699 g with battery and memory card; both exclude lens
MaterialsMaker specifies recycled materials including SORPLAS in the body, depending on production timingMagnesium-alloy body; maker describes dust and moisture resistance without guaranteeing complete protection
In the box–Sony Japan lists NP-FZ100 battery, BC-QZ1 charger and mains cable, cable protector, strap, body/shoe caps, eyepiece cup and USB-A to USB-C cable
ColoursSilver/black or black–

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