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Sony Alpha 7CR vs Sony Alpha SLT-A55

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

Better figure, where one is clearly better

SonyAlpha 7CRSonyAlpha SLT-A55
Overview
ReleasedSeptember 2023September 2010
Image and sensor
Camera typeMirrorlessTranslucent mirror
Sensor formatFull frameAPS-C
Sensor typeBack-illuminated Exmor R CMOSExmor APS HD CMOS
Sensor dimensions35.7 × 23.8 mm23.5 × 15.6 mm
Effective resolution61 MP16.2 MP
Largest image9504 × 63364912 × 3264
RAW recordingYesYes
Standard ISO range100–32000100–12800
Sensor detailApproximately 62.5 million total pixels; maker maximum movie effective resolution 50.8 MP; four- or sixteen-image pixel-shift capture requires assembly in dedicated computer software16.7 million total photosites; fixed translucent mirror feeds a dedicated phase-detection AF sensor while the main sensor supplies live view
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, RAW (Sony ARW 2.2) and RAW+JPEG; 3:2 or 16:9 stills; Sweep Panorama and 3D MPO panorama recording
ISO detailStandard still-image and movie ISO 100–32000; still-image extension ISO 50–102400Auto ISO 100–1600; multi-frame noise reduction extends sensitivity to ISO 25600; movie Auto ISO 100–3200
Image processorBIONZ XR and dedicated AI processing unitBIONZ
Lens and shooting
Lens mountSony E-mountSony A-mount
StabilisationSensor shiftSensor shift
Maximum continuous burst8 fps10 fps
Lens detailInterchangeable E-mount; ILCE-7CR is supplied without a lens. The photo shows both body colours.Compatible Sony, Minolta and Konica Minolta A-mount AF lenses; kit lenses are separate from body specifications
AutofocusFast Hybrid AF; up to 693 phase-detection points for stills or 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 aircraft15-point phase-detection AF with three cross sensors; EV −1–18 at ISO 100; single-shot, automatic and continuous AF, manual focus and Eye-Start AF
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 flash1/4000–30 seconds and Bulb; flash sync 1/160 second
Burst detailUp to 8 fps Hi+; maker buffer approximately 36 compressed RAW, 16 lossless-compressed RAW or 14 uncompressed RAW images; up to 320 Fine JPEGs. Amateur Photographer found 8 fps requires compressed RAW without live view, and 6 fps with live view or lossless-compressed RAW.Up to 10 fps in Continuous Advance Priority AE with AF-C focus and exposure adjustment according to the maker manual; AF-S fixes focus to the first frame. Ordinary continuous drive reaches 6 fps; its maker buffer figures are 35 Fine JPEG, 39 Standard JPEG, 20 RAW or 20 RAW+JPEG frames. PhotographyBlog’s exposure-lock description conflicts with the manual; PhotoReview tested a late pre-production unit.
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 correctionSteadyShot INSIDE sensor-shift system; maker claim approximately 2.5–4 stops depending on lens and conditions
FlashNo built-in flash; Multi Interface Shoe supports compatible external flashAutomatic pop-up flash, guide number 10 in metres at ISO 100; ADI and pre-flash TTL control; compatible external flash required for wireless flash and high-speed sync
Exposure controls1200-zone evaluative metering; exposure compensation ±5 EVPASM, Auto, Auto+, scene, panorama and Continuous Advance Priority AE modes; 1200-zone main-sensor metering; ±2 EV compensation in 1/3 steps; D-Range Optimizer and three-frame Auto HDR
Video
Highest video resolution3840 × 2160 at 60 fps1920 × 1080 at 29.97 fps
Video detailInternal 3840 × 2160 up to 60p NTSC or 50p PAL, with 10-bit 4:2:2 options; 60p/50p narrows the angle of view by approximately 1.2×. Photography Blog identifies oversampled 4K 30p from approximately 6.2K in Super 35 mode. XAVC S-I 4K reaches 600 Mbps at 60p; Full HD up to 120p NTSC or 100p PAL. HDMI can output 3848 × 2168 16-bit RAW at up to 60p to a compatible external recorder. S-Log3, S-Cinetone, user LUT display and AI Auto Framing.Japan/NTSC specification is 1920 × 1080 AVCHD at 59.94 interlaced fields/s from 29.97 sensor frames/s, approximately 17 Mbps; PAL bodies use 50i from 25 frames/s. MP4 supports 1440 × 1080 and VGA. At 20°C Sony claims approximately nine minutes of continuous recording with SteadyShot enabled or 29 minutes disabled; higher temperatures shorten this further.
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, mono playback speaker and external microphone input
Screen and viewfinder
ViewfinderElectronicElectronic
Screen size3″3″
Screen dots1,036,800921,600
TouchscreenYes–
Tilting screenYesYes
Display detailSide-opening vari-angle touchscreen; opens approximately 176° and rotates approximately 270°; touch menu operationXtra Fine TruBlack LCD; 180° tilt and 270° rotation on a bottom hinge; dots count colour subpixels
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 refreshElectronic finder with approximately 100% coverage, 1.10× magnification with a 50 mm lens, and 1,152,000 effective equivalent dots out of 1,440,000 total; electronic level and grid display
Connections and design
Wi-FiYes–
BluetoothYes–
Battery life (maker's claim)530 photographs330 photographs
Body weight430 g441 g
Release detailSony Australia specifies retail availability from September 2023. Alpha 7CR is a higher-resolution compact model alongside Alpha 7C II. Current maker specifications include later-supported subject recognition and movie-stabilisation features.Sony Japan specifies 10 September 2010 for SLT-A55V; the US announcement specifies October 2010. September is the earliest maker-stated retail month found.
Recording mediaOne SD slot supporting UHS-I and UHS-II; no CFexpress supportSingle slot accepting SD, SDHC, SDXC, Memory Stick PRO Duo and PRO-HG Duo
PortsUSB-C (USB 3.2 at 5 Gbps), Micro HDMI Type D, 3.5 mm microphone and headphone sockets and digital-audio Multi Interface ShoeUSB 2.0 Hi-Speed, mini HDMI Type C, external microphone input and wired remote terminal; optional infrared remote and AC adaptor
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 transferSLT-A55V includes GPS geotagging; SLT-A55 sold in some markets omits GPS. The Japanese specification and photo represent SLT-A55V.
Battery life detailNP-FZ100; current Sony CIPA claim approximately 530 photographs with LCD or 490 with viewfinder; actual movie claim approximately 100 minutes with LCD or 95 with viewfinder. Both launch-period reviews give lower 520/470-shot figures.NP-FW50; CIPA maker claim approximately 330 photographs using the viewfinder or 380 using the LCD
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 cableSupplied BC-VW1 external battery charger
DimensionsApproximately 124.0 × 71.1 × 63.4 mm; depth from grip to monitor 58.6 mmApproximately 124.4 × 92 × 84.7 mm (width × height × depth)
Weight detailApproximately 430 g body only; 515 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 441 g body only; 500 g including battery and Memory Stick PRO Duo
MaterialsMaker specifies recycled materials including SORPLAS in the body, depending on production timing–
ColoursSilver/black or blackBlack
In the boxSony Australia confirms the GP-X2 extension grip is included; no lensNP-FW50 battery, BC-VW1 charger, USB cable, shoulder strap, caps and software CD; kit lenses depend on configuration

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