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Pentax K-S1 vs Sony SLT-A37

4.72 in
3.64 in
Pentax K-S1 Digital Camera
Pentax K-S1
4.9 in
3.62 in
Sony SLT-A37 Digital Camera
Sony SLT-A37
Available colors
Editiorial reviews
20
3.9 out of 5
10 user ratings
5 stars
20 %
4 stars
70 %
3 stars
10 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
16
4.2 out of 5
7 user ratings
5 stars
42 %
4 stars
42 %
3 stars
14 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
User rating
40
4.1 out of 5
40 user ratings
5 stars
35 %
4 stars
35 %
3 stars
30 %
2 stars
0 %
1 stars
0 %
34
4.1 out of 5
34 user ratings
5 stars
35 %
4 stars
44 %
3 stars
20 %
2 stars
0 %
1 stars
0 %

Full Comparison

Sensor

Pentax K-S1Pentax K-S1
Sony SLT-A37Sony SLT-A37
Sensor typeCMOSCMOS
Image sensor formatAPS-CAPS-C
Sensor size0.93 in0.92 in
Sensor photo detectors20.0 Mpx17.0 Mpx
Effective pixels20.0 Mpx16.0 Mpx
Image ratio w:h3:2
  • 3:2
  • 16:9
Max resolution5472 x 3648 px4912 x 3264 px
Other resolutions
  • 4224x2816
  • 3456x2304
  • 3072x2448
  • 1920x1080
  • 4912x2760
  • 3568x2368
  • 3568x2000
  • 2448x1624
  • 2448x1376

Image

Pentax K-S1Pentax K-S1
Sony SLT-A37Sony SLT-A37
ISO
  • 100
  • 51200
  • 100
  • 16000
ISO Autoyesyes
ISO minimum100100
ISO maximum5120016000
Maximum image resolution5472 x 3648 px4912 x 3264 px
White balance presets96
White balance modes
  • Auto
  • Cloudy
  • Daylight
  • Flash
  • Fluorescent
  • Manual
  • Shade
  • Tungsten
  • Auto
  • Cloudy
  • Custom modes
  • Daylight
  • Flash
  • Fluorescent
  • Incandescent
  • Shade
Custom white balanceyesyes
Supported image file formats
  • PEF
  • DNG
  • JPG
  • RAW
  • JPG
  • RAW
Photo effects
  • Black&White
  • Fader
  • Pastel
Vivid
Image stabilizeryesyes
Image stabilization typeSensor-shiftSensor-shift
Uncompressed formatRAWRAW
HDRyesyes
AEB/HDR supportyesyes

Optics and focus

Pentax K-S1Pentax K-S1
Sony SLT-A37Sony SLT-A37
Lens mountPentax KAF2Sony A
Magnification (Crop factor)1.5 x1.5 x
Maximum aperture3.53.5
AF assist (auto-focus assist light)LampFlash
Focus adjustmentAutoAuto/Manual
Contrast autofocusyesno
Brightness adjustmentyesyes
Autofocus in recording modeyesyes
Focal length multiplier1.5x1.5x
Autofocus
  • Continuous Auto Focus
  • Face detection
  • Single Auto Focus
  • Continuous Auto Focus
  • Single Auto Focus
  • Spot Auto Focus
Manual focusyesyes
Auto Focus (AF) assist beamyesyes
Number of focus points1115
Max number of AF points (incl. assistant)1115
Image stabiliserBuilt-inBuilt-in
Filter diameter2.44 in2.17 in
Phase detection autofocusyesyes

Screen and viewfinder

Pentax K-S1Pentax K-S1
Sony SLT-A37Sony SLT-A37
Screen size3.0 in2.7 in
Articulated LCDnoyes
Screen technologyLCD TFTLCD TFT
Screen dots921000230400
Touch screennono
Field of view100.0 %100.0 %
Live viewyesyes
Viewfinder
Optical
Electronic
Viewfinder coverage100.0 %100.0 %
Viewfinder magnification0.95 x16.0 x
Dioptre correctionyesyes
Separate info displaynono
Second displaynono

Photography features

Pentax K-S1Pentax K-S1
Sony SLT-A37Sony SLT-A37
Camera shutter typeElectronicElectronic
Minimum shutter speed30.0 s30.0 s
Maximum shutter speed1.0 s1.0 s
Shutter priorityyesyes
Aperture priorityyesyes
Manual exposure modeyesyes
Number of exposures33
Exposure compensation plus53
Exposure compensation minus-5-3
Expousure compensation steps
  • 1/3
  • 1/2
1/3
Auto exposure lockyesyes
AE EV steps
  • 1/3
  • 1/2
  • 1/3
  • 2/3
Continuous shootingyesyes
Self-timer delay
  • 2
  • 12
  • 2
  • 10
Histogramyesyes
AE frames33
WB BracketingNo
Yes
Subject / scene modesyesyes
Flash sync speed1/180s1/160s
Built-in flashyesyes
Flash range1012
Flash modes
  • Auto
  • Flash ON
  • Manual
  • Redeye Reduction
  • Slow Sync
  • Auto
  • Fill-in
  • Pre-flash
  • Redeye Reduction
  • Second-curtain Sync
  • Slow Sync
External flash connectionHot shoeHot shoe
Flash metering systemP-TTL
TTL
External flashyesyes
Continuous drive5.4 fps5.5 fps
Scene modes
  • Backlight
  • Candlelight
  • Children
  • Museum
  • Night
  • Night portrait
  • Pet
  • Portrait
  • Snow
  • Sunset
  • Surf
  • Landscape
  • Panorama
  • Portrait
  • Sunset
  • Landscape
Self-timeryesyes
Metering modes
  • Multi
  • Center-weighted
  • Spot
  • Multi
  • Center-weighted
  • Spot
Manual settingsyesyes
Self-timer options
  • 2
  • 12
  • 2
  • 10
Speed (JPEG)5.4 fps5.5 fps
Speed (RAW)5.4 fps5.5 fps

Videography features

Pentax K-S1Pentax K-S1
Sony SLT-A37Sony SLT-A37
Maximum resolution1920 x 1080 px1920 x 1080 px
Video recordingyesyes
Recording resolutions1920.0 px
  • 1440 x 1080
  • 1920 x 1080
HD typeFull HDFull HD
Supported video file formats
  • AVC
  • AVI
  • H.264
  • M-JPEG
  • MOV
  • MPEG-4
  • RAW
  • AVCHD
  • MP4
Camera playback
  • Single image
  • Slide show
Single image
Max resolution (highest frame rate)1280 x 7201920 x 1080
Max frame rate (highest resolution)30.0 fps25.0 fps
Max frame rate (regardless of res.)60.0 fps50.0 fps
Motion JPEG frame rate60.0 fps25.0 fps

Audio features

Pentax K-S1Pentax K-S1
Sony SLT-A37Sony SLT-A37
Built-in microphoneyesyes
Microphone typeStereoStereo
Speaker typeMonoMono
Voice recordingyesyes

Design

Pentax K-S1Pentax K-S1
Sony SLT-A37Sony SLT-A37
Body typeSLRSLR
Body materialPlasticPlastic
Colour of product
  • Beige
  • Black
  • Black,Orange
  • Black,Silver
  • Blue
  • Blue,White
  • Brown
  • Gold
  • Grey
  • Lime,White
  • Pink,White
  • Purple
  • White
Black
Anti-dust systemyesyes
Environmentally sealednono

Dimensions

Pentax K-S1Pentax K-S1
Sony SLT-A37Sony SLT-A37
Weight17.57 oz14.64 oz
Width4.72 in4.9 in
Height3.64 in3.62 in
Depth2.74 in3.33 in

Storage

Pentax K-S1Pentax K-S1
Sony SLT-A37Sony SLT-A37
Compatible memory cards
  • FLU
  • Eye-Fi
  • SD
  • SDHC
  • SDXC
  • MS Pro Duo
  • MS Pro-HG Duo
  • SD
  • SDHC
  • SDXC
Storage types
  • SD
  • SDHC
  • SDXC
  • SD
  • SDHC
  • SDXC
  • Memory Stick Pro Duo
  • Memory Stick Pro-HG Duo
Camera file system
  • DCF 2.0
  • Exif 2.3
  • RAW
  • DCF 2.0
  • DPOF 1.1
  • Exif 2.3
  • MPF
  • RAW

Power

Pentax K-S1Pentax K-S1
Sony SLT-A37Sony SLT-A37
Power source typeBatteryBattery
Battery life (CIPA)480500
Battery technology
Lithium-Ion
Lithium
Number of batteries supported11

Connectivity

Pentax K-S1Pentax K-S1
Sony SLT-A37Sony SLT-A37
HDMIyesyes
USB version2.02.0
WirelessEye-Fi ConnectedEye-Fi Connected
Remote controlyesyes
NFCnono
Wireless network (Wi-Fi)nono
Firewirenono

Other features

Pentax K-S1Pentax K-S1
Sony SLT-A37Sony SLT-A37
GPSyesno
Orientation sensoryesyes
Energy Star certifiednono
Image editing modes
  • Crop
  • Resizing
  • Rotating
Rotating

Pros & Cons

Pros
      Cons

          Often compared with Pentax K-S1

          Often compared with Sony SLT-A37