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Sony Alpha SLT-A37 vs Sony Alpha SLT-A57

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

Better figure, where one is clearly better

SonyAlpha SLT-A37SonyAlpha SLT-A57
Overview
ReleasedMay 2012April 2012
Image and sensor
Camera typeTranslucent mirrorTranslucent mirror
Sensor formatAPS-CAPS-C
Sensor typeExmor APS HD CMOSExmor APS HD CMOS
Sensor dimensions23.5 × 15.6 mm23.5 × 15.6 mm
Effective resolution16.1 MP16.1 MP
Largest image4912 × 32644912 × 3264
RAW recordingYesYes
Standard ISO range100–16000100–16000
Sensor detail16.5 million total photosites; fixed translucent mirror feeds the dedicated phase-detection AF module while the main sensor supplies live view16.7 million total photosites; fixed translucent mirror feeds a dedicated phase-detection AF sensor while the main sensor supplies live view
Image formatsJPEG, RAW (Sony ARW 2.3), RAW+JPEG and 3D panorama MPO; 3:2 or 16:9 stillsJPEG, RAW (Sony ARW 2.3), RAW+JPEG and 3D MPO panoramas; 3:2 or 16:9 stills
ISO detailAuto ISO 100–3200; standard ISO 100–16000; multi-frame noise reduction extends to ISO 25600; movies ISO 100–3200Auto ISO 100–3200; multi-frame noise reduction extends sensitivity to ISO 25600; movies ISO 100–3200
Image processorBIONZBIONZ
Lens and shooting
Lens mountSony A-mountSony A-mount
StabilisationSensor shiftSensor shift
Maximum continuous burst5.5 fps10 fps
Lens detailSony, Minolta and Konica Minolta A-mount AF lenses; kit lenses are separate from body specificationsCompatible Sony, Minolta and Konica Minolta A-mount AF lenses; kit lenses are separate from body specifications
Autofocus15 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 assist15-point phase-detection AF with three cross sensors; EV −1–18 at ISO 100 with an F2.8 lens; AF-S, AF-A, AF-C and manual focus; zone and local selection, tracking AF and Eye-Start
Shutter1/4000–30 seconds and Bulb; flash sync 1/160 second; electronic first curtain selectable1/4000–30 seconds and Bulb; flash sync 1/160 second
Burst detailFull-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 conditionsUp to 12 fps with full-time continuous AF in Tele-zoom Continuous Advance Priority AE: 1.4× centre crop, medium/small JPEG only. Full-resolution Continuous Advance Priority AE reaches 10 fps; ordinary drive 8 fps Hi or 3 fps Lo. Maker buffer claim at 10 fps: 23 Fine JPEG, 27 Standard JPEG, 21 RAW or 18 RAW+JPEG frames; cropped 12 fps: 23 Fine or 25 Standard JPEG frames. In the 10/12 fps AF modes aperture is controlled to f/3.5, or the maximum aperture of a slower lens; the 12 fps maximum image is approximately 8.4 MP.
Stabilisation detailSteadyShot INSIDE sensor shift for stills, maker claim approximately 2.5–4 stops; electronic stabilisation for moviesSteadyShot INSIDE sensor shift for stills, maker claim approximately 2.5–4.5 stops; electronic stabilisation for movies
FlashAutomatic pop-up flash, guide number 10 metres at ISO 100; ADI/pre-flash TTL; compatible external flash required for wireless and high-speed syncAutomatic 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 controlsPASM, 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 FramingPASM, Intelligent Auto, Superior Auto, scene and panorama modes; 1200-zone metering; ±3 EV compensation in 1/3 steps; three-frame Auto HDR, D-Range Optimizer, Picture Effects and Auto Portrait Framing
Video
Highest video resolution1920 × 1080 at 30 fps1920 × 1080 at 60 fps
Video detailJapan/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 exposureJapan/NTSC model: 1920 × 1080 AVCHD 2.0 at 60p/28 Mbps, 60i/24 or 17 Mbps, and 24p/24 or 17 Mbps. PAL models use 50p, 50i and 25p. MP4 supports 1440 × 1080 or VGA. P/A/S/M movie exposure modes require manual focus; continuous phase-detection AF is available with automatic movie exposure.
AudioBuilt-in stereo microphone and mono playback speaker; external microphone inputBuilt-in stereo microphone with wind-noise reduction, external stereo microphone input and mono playback speaker
Screen and viewfinder
ViewfinderElectronicElectronic
Screen size2.7″3″
Screen dots230,400921,600
TouchscreenNoNo
Tilting screenYesYes
Display detailClear Photo LCD tilts approximately 135° upwards or 55° downwards; dots count colour subpixels; focus peaking and magnificationXtra Fine LCD with 180° tilt and 270° rotation on a bottom hinge; focus peaking and magnification; dots count colour subpixels
Viewfinder detail0.46-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×)0.46-type SVGA electronic finder, 100% coverage; 1,440,000 effective dots at maximum magnification (1.04× with a 50 mm lens), or 1,253,280 at standard magnification (0.97×); electronic level and grids
Connections and design
Battery life (maker's claim)450 photographs550 photographs
Body weight448 g539 g
Release detailSony Spain states availability from mid-May 2012; Sony Japan states 15 June 2012. May follows the earliest maker-stated regional retail timingSony UK specifies early April 2012 for European availability; Japan’s revised announcement specifies 27 April 2012. April is the earliest maker-stated retail precision found.
Recording mediaSingle slot accepting SD/SDHC/SDXC, Memory Stick PRO Duo and PRO-HG DuoSingle slot accepting SD, SDHC, SDXC, Memory Stick PRO Duo and PRO-HG Duo
PortsUSB 2.0 Hi-Speed, mini HDMI Type C, 3.5 mm microphone and wired remote inputs; Auto-lock accessory shoe; no infrared remoteUSB 2.0 Hi-Speed, mini HDMI Type C, 3.5 mm stereo microphone input, wired remote and DC input; optional infrared remote; Auto-lock accessory shoe
Battery life detailNP-FW50; maker CIPA claim approximately 450 photographs with viewfinder or 500 with LCDNP-FM500H; CIPA maker claim approximately 550 photographs using the viewfinder or 590 using the LCD
ChargingSupplied BC-VW1 external charger; no in-body chargingSupplied BC-VM10A external charger
DimensionsApproximately 124.4 × 92 × 84.7 mm (width × height × depth), excluding protrusionsApproximately 132.1 × 97.5 × 80.7 mm (width × height × depth), excluding protrusions
Weight detailApproximately 448 g body only, 506 g including battery and Memory Stick PRO DuoApproximately 539 g body only; 618 g including battery and Memory Stick PRO Duo
ColoursBlackBlack
In the boxNP-FW50 battery, BC-VW1 charger, shoulder strap, body cap, eyepiece cup, USB cable and software CD; lenses depend on kitNP-FM500H battery, BC-VM10A charger, shoulder strap, eyepiece cup, USB cable and software CD; lenses depend on kit

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