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Sony Alpha 1 II vs Sony Alpha SLT-A37

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

Better figure, where one is clearly better

SonyAlpha 1 IISonyAlpha SLT-A37
Overview
ReleasedDecember 2024May 2012
Image and sensor
Camera typeMirrorlessTranslucent mirror
Sensor formatFull frameAPS-C
Sensor typeStacked Exmor RS CMOS with integral memoryExmor APS HD CMOS
Sensor dimensions35.9 × 24 mm23.5 × 15.6 mm
Effective resolution50.1 MP16.1 MP
Largest image8640 × 57604912 × 3264
RAW recordingYesYes
Standard ISO range100–32000100–16000
Sensor detailApproximately 50.5 million total pixels; Pixel Shift Multi Shooting uses four or 16 exposures combined in compatible computer software.16.5 million total photosites; fixed translucent mirror feeds the dedicated phase-detection AF module while the main sensor supplies live view
Image formatsJPEG, HEIF and Sony ARW 5.0 RAW.JPEG, RAW (Sony ARW 2.3), RAW+JPEG and 3D panorama MPO; 3:2 or 16:9 stills
ISO detailStandard ISO 100–32000 for stills and movies; stills expand to ISO 50–102400.Auto ISO 100–3200; standard ISO 100–16000; multi-frame noise reduction extends to ISO 25600; movies ISO 100–3200
Image processorBIONZ XR and dedicated AI processing unit.BIONZ
Lens and shooting
Lens mountSony E-mountSony A-mount
StabilisationSensor shiftSensor shift
Maximum continuous burst30 fps5.5 fps
Lens detail–Sony, Minolta and Konica Minolta A-mount AF lenses; kit lenses are separate from body specifications
AutofocusUp to 759 phase-detection points for stills and movies; sensitivity EV −4 to 20 in AF-S with an F2 lens at ISO 100. Automatic or selected recognition of people, animals, birds, insects, cars, trains and aircraft. Sony's current feature page specifies Real-time Recognition AF+ from firmware version 4.00; launch reviews describe earlier firmware.15 phase-detection points including three cross sensors; AF-S, AF-A, AF-C and manual focus; EV −1–18 at ISO 100 with an F2.8 lens; zone/local selection, tracking AF and flash AF assist
Shutter–1/4000–30 seconds and Bulb; flash sync 1/160 second; electronic first curtain selectable
Burst detailUp to 30 fps electronic Hi+ with AF/AE tracking under compatible-lens and maker conditions; uncompressed or lossless-compressed RAW up to 20 fps; mechanical Hi+ up to 10 fps. Pre-Capture retains up to one second before full shutter press, subject to camera temperature and shooting conditions. A custom button can temporarily change burst speed.Full-resolution continuous shooting up to 5.5 fps Hi or 2.5 fps Lo; Tele-zoom Continuous Advance Priority AE reaches 7 fps with central crop to 8.4 MP JPEG. Maker ordinary Hi buffer: 15 Fine or 16 Standard JPEG, seven RAW or six RAW+JPEG; cropped mode 17 Fine or 18 Standard JPEG. Performance depends on card and shooting conditions
Stabilisation detailFive-axis sensor shift; centre 8.5 stops and periphery 7.0 stops under CIPA 2024 pitch/yaw/roll conditions with FE 50mm F1.2 GM and long-exposure noise reduction off. Active and Dynamic Active movie modes narrow the field of view and are unavailable in 8K or at frame rates of 120 fps or higher.SteadyShot INSIDE sensor shift for stills, maker claim approximately 2.5–4 stops; electronic stabilisation for movies
Flash–Automatic pop-up flash, guide number 10 metres at ISO 100; ADI/pre-flash TTL; compatible external flash required for wireless and high-speed sync
Exposure controls–PASM, Intelligent Auto, Superior Auto, scene and panorama modes; 1200-zone metering; ±3 EV compensation in 1/3 steps; D-Range Optimizer, Auto HDR, Picture Effects and Auto Portrait Framing
Video
Highest video resolution7680 × 4320 at 30 fps1920 × 1080 at 30 fps
Video detailSony's current feature page lists internal 7680 × 4320 30p XAVC HS with 8.6K oversampling and 10-bit 4:2:2 support. Lower-resolution 4K up to 120p has approximately 10% crop; Full HD 240 fps is lower resolution. S-Log3, S-Cinetone and imported LUTs supported; external HDMI RAW is separate from internal recording.Japan/NTSC configuration: Full HD AVCHD 2.0 at 60 interlaced fields per second with 30 fps sensor output, or 24p, at approximately 24 or 17 Mbps. PAL models use 50i with 25 fps sensor output or 25p. No 50p/60p Full HD. MP4 up to 1440 × 1080 at 30 fps; main rate is sensor output, not interlaced field rate. Maker continuous limit approximately 29 minutes or 2 GB. Movie A/S/M exposure requires manual focus; phase-detection AF uses automatic exposure
Audio–Built-in stereo microphone and mono playback speaker; external microphone input
Screen and viewfinder
ViewfinderElectronicElectronic
Screen size3.2″2.7″
Screen dots2,095,104230,400
TouchscreenYesNo
Tilting screenYesYes
Display detailFour-axis TFT LCD opens approximately 98° up, 40° down and 180° sideways, with 270° rotation when opened sideways.Clear Photo LCD tilts approximately 135° upwards or 55° downwards; dots count colour subpixels; focus peaking and magnification
Viewfinder detail0.64-inch Quad-XGA OLED with 9437184 dots and approximately 0.90× magnification with a 50 mm lens at infinity. Selectable 60/120/240 fps; standard magnification is unavailable at 240 fps.0.46-type SVGA Tru-Finder, 100% coverage; 1,440,000 effective dots at maximum magnification (1.19× with 50 mm lens), or 1,253,280 at standard magnification (1.09×)
Connections and design
Wi-FiYes–
BluetoothYes–
Battery life (maker's claim)520 photographs450 photographs
Body weight658 g448 g
Release detailSony UK specifies availability in December 2024; no release day inferred. Exact technical figures use Sony Japan because the UK specification URLs were inaccessible during research.Sony Spain states availability from mid-May 2012; Sony Japan states 15 June 2012. May follows the earliest maker-stated regional retail timing
Recording mediaBoth slots accept CFexpress 2.0 Type A or UHS-I/UHS-II SD.Single slot accepting SD/SDHC/SDXC, Memory Stick PRO Duo and PRO-HG Duo
PortsUSB Type-C at 10 Gbps, Multi/Micro USB, full-size HDMI, 2.5GBASE-T Ethernet, sync terminal, 3.5 mm microphone and headphone sockets and digital-audio Multi Interface Shoe.USB 2.0 Hi-Speed, mini HDMI Type C, 3.5 mm microphone and wired remote inputs; Auto-lock accessory shoe; no infrared remote
Wireless connectionsWi-Fi IEEE 802.11a/b/g/n/ac at 2.4/5 GHz and Bluetooth 5.0.–
Battery life detailNP-FZ100; Sony Japan CIPA approximately 520 photographs with LCD or 420 with viewfinder. PhotographyBlog's 530/400 figures are not used. USB Type-C Power Delivery charging and power supported.NP-FW50; maker CIPA claim approximately 450 photographs with viewfinder or 500 with LCD
Charging–Supplied BC-VW1 external charger; no in-body charging
DimensionsApproximately 136.1 × 96.9 × 82.9 mm (width × height × maximum depth); grip-to-monitor depth 72.8 mm.Approximately 124.4 × 92 × 84.7 mm (width × height × depth), excluding protrusions
Weight detailApproximately 658 g body only or 743 g with battery and memory card, excluding lens. PhotographyBlog's inconsistent 617 g figure is not used.Approximately 448 g body only, 506 g including battery and Memory Stick PRO Duo
Colours–Black
In the boxOne NP-FZ100 battery, BC-ZD1 dual-battery charger, cable protector, shoulder strap, body cap, accessory shoe cap and FDA-EP19/FDA-EP21 eyepiece cups, according to Sony Japan. USB Power Delivery AC adaptor and USB cable are not included.NP-FW50 battery, BC-VW1 charger, shoulder strap, body cap, eyepiece cup, USB cable and software CD; lenses depend on kit

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