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Sony Alpha 7CR vs Sony Alpha DSLR-A900

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

Better figure, where one is clearly better

SonyAlpha 7CRSonyAlpha DSLR-A900
Overview
ReleasedSeptember 2023September 2008
Image and sensor
Camera typeMirrorlessDSLR
Sensor formatFull frameFull frame
Sensor typeBack-illuminated Exmor R CMOSCMOS
Sensor dimensions35.7 × 23.8 mm35.9 × 24 mm
Effective resolution61 MP24.6 MP
Largest image9504 × 63366048 × 4032
RAW recordingYesYes
Standard ISO range100–32000200–3200
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 softwareExmor CMOS; approximately 25.7 million total pixels; RGB primary-colour filter; anti-static coating and sensor-shift dust removal
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 2.1), compressed cRAW and RAW/cRAW+JPEG; 3:2, cropped 16:9 and approximately 11 MP APS-C crop. Sony’s Hong Kong launch PDF says ARW 2.0; the exact Japanese spec sheet and press table specify ARW 2.1.
ISO detailStandard still-image and movie ISO 100–32000; still-image extension ISO 50–102400Standard ISO 200–3200 in 1/3-stop steps, with expanded ISO 100–6400; Auto ISO 200–1600 with selectable limits
Image processorBIONZ XR and dedicated AI processing unitDual BIONZ image-processing engines
Lens and shooting
Lens mountSony E-mountSony A-mount
StabilisationSensor shiftSensor shift
Maximum continuous burst8 fps5 fps
Lens detailInterchangeable E-mount; ILCE-7CR is supplied without a lens. The photo shows both body colours.Interchangeable Sony A-mount; compatible Sony, Minolta and Konica Minolta AF lenses. DT lenses trigger APS-C crop, but Sony does not guarantee full exposure performance with APS-C-only DT optics.
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 aircraftTTL phase detection with nine selectable points (centre dual-cross) and ten non-selectable assist points; additional F2.8 precision sensor; single-shot, automatic and continuous AF, direct manual focus and manual focus; EV 0–18 detection at ISO 100; LED AF-assist lamp. AF micro-adjustment stores up to 30 lenses; no Eye-Start AF according to Sony’s exact Japanese table, despite the Hong Kong press table listing it.
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 flashElectronically controlled vertical-traverse focal-plane shutter; 30 seconds to 1/8000 second plus Bulb; flash sync 1/250 second with stabilisation off or 1/200 second with it on; mirror-up drive mode
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 5 fps Hi or 3 fps Lo; maker buffer claims 285 Standard JPEGs, 105 Fine JPEGs, 11 Extra Fine JPEGs, 12 RAW/cRAW or ten RAW/cRAW+JPEG frames; depends on memory card and shooting conditions
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; Sony claims approximately 2.5–4 stops depending on lens and shooting conditions; excludes Minolta AF Macro Zoom 3X–1X F1.7–2.8
FlashNo built-in flash; Multi Interface Shoe supports compatible external flashNo built-in flash; proprietary Alpha flash shoe and PC sync terminal; ADI and pre-flash TTL with compatible external units. Wireless control requires an HVL-F58AM and another compatible flash.
Exposure controls1200-zone evaluative metering; exposure compensation ±5 EVProgram, aperture priority, shutter priority, manual and Auto; no scene modes; 40-segment honeycomb, centre-weighted or spot metering; ±3 EV compensation in 1/2- or 1/3-stop steps; D-Range Optimizer, 13 Creative Styles, Quick Navi and three saved shooting setups
Video
Highest video resolution3840 × 2160 at 60 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.Still-image DSLR without video recording or rear-screen live view; Intelligent Preview captures a temporary image for exposure, white balance and D-Range Optimizer simulation rather than a live feed
AudioBuilt-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
ViewfinderElectronicOptical
Screen size3″3″
Screen dots1,036,800921,600
TouchscreenYes–
Tilting screenYes–
Display detailSide-opening vari-angle touchscreen; opens approximately 176° and rotates approximately 270°; touch menu operationFixed 3.0-inch Xtra Fine LCD, 921,600 dots (640 × 480 RGB subpixels), with anti-reflection coating; separate small top status LCD
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 refreshFixed eye-level pentaprism; approximately 100% coverage and 0.74× magnification with a 50 mm lens at infinity; built-in eyepiece shutter; user-replaceable G/L/M focusing screens; optical depth-of-field preview
Connections and design
Wi-FiYes–
BluetoothYes–
Battery life (maker's claim)530 photographs880 photographs
Body weight430 g850 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 Europe’s spokesperson told Photography Bay that main-market availability began at the end of September 2008; month precision retained. Regional maker announcements give October 2008 for Hong Kong and 23 October 2008 for Japan.
Recording mediaOne SD slot supporting UHS-I and UHS-II; no CFexpress supportSeparate CompactFlash Type I/II (UDMA Mode 5) and Memory Stick Duo/PRO Duo/PRO-HG Duo slots; Microdrive support; user selects recording medium, without simultaneous dual-card recording (PhotographyBlog)
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; HDMI mini for still-image playback; NTSC/PAL video output; wired remote-release connector, flash sync and DC input; supplied software supports computer remote control
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 transfer–
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-FM500H; Sony CIPA claim approximately 880 photographs per charge; optional VG-C90AM grip holds two batteries. PhotographyBlog achieved barely half the claim during its review use.
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-VM10 external charger; optional AC-VQ900AM adaptor/charger
DimensionsApproximately 124.0 × 71.1 × 63.4 mm; depth from grip to monitor 58.6 mmApproximately 156.3 × 116.9 × 81.9 mm (width × height × depth), excluding protrusions
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 850 g without battery, memory card, lens or accessories; PhotographyBlog describes just under 930 g with battery, without providing a precise loaded figure
MaterialsMaker specifies recycled materials including SORPLAS in the body, depending on production timingMagnesium-alloy front, rear and upper covers with aluminium internal chassis; seals reduce dust and moisture ingress. Sony explicitly says the camera is not waterproof or splash-proof.
ColoursSilver/black or blackBlack
In the boxSony Australia confirms the GP-X2 extension grip is included; no lensNP-FM500H battery, BC-VM10 charger and power cord, RMT-DSLR1 wireless remote, USB and video cables, shoulder strap, eyecup, remote clip, body and shoe caps, software CD

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