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Pentax K-S2 vs Sony A37

Portability
64
Imaging
64
Features
82
Overall
71
Pentax K-S2 front
 
Sony SLT-A37 front
Portability
67
Imaging
57
Features
65
Overall
60

Pentax K-S2 vs Sony A37 Key Specs

Pentax K-S2
(Full Review)
  • 20MP - APS-C Sensor
  • 3" Fully Articulated Screen
  • ISO 100 - 51200
  • Sensor based Image Stabilization
  • No Anti-Alias Filter
  • 1/6000s Maximum Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 678g - 123 x 91 x 73mm
  • Released February 2015
  • Replaced the Pentax K-S1
Sony A37
(Full Review)
  • 16MP - APS-C Sensor
  • 2.6" Tilting Screen
  • ISO 100 - 25600
  • Sensor based Image Stabilization
  • 1920 x 1080 video
  • Sony/Minolta Alpha Mount
  • 506g - 124 x 92 x 85mm
  • Released May 2012
  • Old Model is Sony A35
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Pentax K-S2 vs Sony A37 Overview

Let's look more closely at the Pentax K-S2 vs Sony A37, both Entry-Level DSLR digital cameras by rivals Pentax and Sony. There is a sizeable difference between the image resolutions of the K-S2 (20MP) and A37 (16MP) but both cameras have the identical sensor sizing (APS-C).

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The K-S2 was announced 2 years after the A37 which is quite a large gap as far as tech is concerned. Both of these cameras feature the same body design (Compact SLR).

Before getting right into a in depth comparison, here is a short highlight of how the K-S2 matches up against the A37 with regard to portability, imaging, features and an overall score.

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Reasons to pick Pentax K-S2 over the Sony A37

 K-S2 A37 
ReleasedFebruary 2015May 2012More modern by 34 months
Screen typeFully ArticulatedTiltingFully Articulating screen
Screen size3"2.6"Bigger screen (+0.4")
Screen resolution921k230kCrisper screen (+691k dot)
Selfie screen Take selfies

Reasons to pick Sony A37 over the Pentax K-S2

 A37 K-S2 

Common features in the Pentax K-S2 and Sony A37

 K-S2 A37 
Manually focus Dial accurate focus
Touch screen Lack of Touch screen

Pentax K-S2 vs Sony A37 Physical Comparison

For those who are going to carry around your camera, you need to take into account its weight and volume. The Pentax K-S2 comes with exterior measurements of 123mm x 91mm x 73mm (4.8" x 3.6" x 2.9") along with a weight of 678 grams (1.49 lbs) while the Sony A37 has sizing of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") and a weight of 506 grams (1.12 lbs).

See the Pentax K-S2 vs Sony A37 in the all new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember, the weight of an Interchangeable Lens Camera will differ dependant on the lens you are employing at that moment. The following is a front view measurement comparison of the K-S2 vs the A37.

Pentax K-S2 vs Sony A37 size comparison

Taking into consideration size and weight, the portability grade of the K-S2 and A37 is 64 and 67 respectively.

Pentax K-S2 vs Sony A37 top view buttons comparison

Pentax K-S2 vs Sony A37 Sensor Comparison

In many cases, it is difficult to imagine the gap between sensor sizes simply by reviewing specifications. The pic below will help provide you a greater sense of the sensor measurements in the K-S2 and A37.

To sum up, the 2 cameras feature the identical sensor size albeit different megapixels. You should count on the Pentax K-S2 to offer extra detail with its extra 4MP. Higher resolution can also allow you to crop photographs way more aggressively. The younger K-S2 provides a benefit when it comes to sensor technology.

Pentax K-S2 vs Sony A37 sensor size comparison

Pentax K-S2 vs Sony A37 Screen and ViewFinder

Pentax K-S2 vs Sony A37 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-S2 Portrait photography features
Sony A37 Portrait photography features
78
manual focus
MP count decent (20 megapixels)
sensor size is good (APS-C)
features face detect focus
exports RAW files
74
you can focus manually
decent sensor resolution (16MP)
good sensor size (APS-C)
features face detect focusing
saves RAW files
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Street Comparison

Pentax K-S2 Street photography factors
Sony A37 Street photography factors
72
screen articulates
built in image stabilization (Sensor based)
sensor size is good (APS-C)
exports RAW files
environment proofing
great ISO range (51,200)
heavier than competitors (678g)
77
screen tilts
has image stabilization (Sensor based)
good sensor size (APS-C)
saves RAW files
above average ISO range (25,600)
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Sports Comparison

Pentax K-S2 Sports photography information
Sony A37 Sports photography information
70
maximum shutter speed is high (1/6,000s)
built in image stabilization (Sensor based)
MP count decent (20MP)
sensor size is good (APS-C)
features tracking focus
environment proofing
comes with phase detect auto focus
slow fps (5.4 fps)
low battery power (410 per charge)
61
has image stabilization (Sensor based)
decent sensor resolution (16MP)
good sensor size (APS-C)
comes with phase detect AF
slow fps (6.0 frames per second)
not so great battery (500 shots)
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Travel Comparison

Pentax K-S2 Travel photography highlights
Sony A37 Travel photography highlights
65
environment proofing
MP count decent (20MP)
flash built-in
selfie friendly screen
low battery power (410 shots)
heavier than competitors (678 grams)
54
decent sensor resolution (16MP)
built-in flash
lack of Timelapse mode
not so great battery (500 CIPA)
doesn't have a selfie friendly screen
Photography Glossary

Landscape Comparison

Landscape photography with Pentax K-S2
Landscape photography with Sony A37
77
manual focus
change lenses (Pentax KAF2 mount)
screen is a decent size (3 inches)
built in image stabilization (Sensor based)
MP count decent (20 megapixels)
sensor size is good (APS-C)
doesnt have anti-alias filter
great ISO range (51,200)
exports RAW files
environment proofing
low battery power (410 per charge)
64
you can focus manually
swap lenses (Sony/Minolta Alpha mount)
has image stabilization (Sensor based)
decent sensor resolution (16MP)
good sensor size (APS-C)
above average ISO range (25,600)
saves RAW files
small screen (2.6 inches)
not so great battery (500 shots)
lack of Timelapse mode
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Vlogging Comparison

Pentax K-S2 Vlogging factors
Sony A37 Vlogging factors
71
selfie friendly screen
built in image stabilization (Sensor based)
features face detect focus
high res video (1920 x 1080 pxls)
does have mic support
heavier than competitors (678 grams)
35
has image stabilization (Sensor based)
features face detect focusing
video resolution high (1920 x 1080 pxls)
does have microphone socket
doesn't have a selfie friendly screen
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Pentax K-S2 vs Sony A37 Specifications

Detailed spec comparison table for Pentax K-S2 and Sony A37
 Pentax K-S2Sony SLT-A37
General Information
Brand Pentax Sony
Model Pentax K-S2 Sony SLT-A37
Class Entry-Level DSLR Entry-Level DSLR
Released 2015-02-10 2012-05-16
Physical type Compact SLR Compact SLR
Sensor Information
Processor PRIME MII -
Sensor type CMOS CMOS
Sensor size APS-C APS-C
Sensor measurements 23.5 x 15.6mm 23.5 x 15.6mm
Sensor surface area 366.6mm² 366.6mm²
Sensor resolution 20MP 16MP
Anti aliasing filter
Aspect ratio 3:2 3:2 and 16:9
Highest resolution 5472 x 3648 4912 x 3264
Highest native ISO 51200 25600
Minimum native ISO 100 100
RAW files
Autofocusing
Focus manually
Autofocus touch
Continuous autofocus
Single autofocus
Tracking autofocus
Autofocus selectice
Autofocus center weighted
Autofocus multi area
Live view autofocus
Face detection focus
Contract detection focus
Phase detection focus
Number of focus points 11 15
Cross focus points - 3
Lens
Lens mount Pentax KAF2 Sony/Minolta Alpha
Available lenses 151 143
Focal length multiplier 1.5 1.5
Screen
Type of screen Fully Articulated Tilting
Screen size 3 inches 2.6 inches
Screen resolution 921k dots 230k dots
Selfie friendly
Liveview
Touch functionality
Viewfinder Information
Viewfinder type Optical (pentaprism) Electronic
Viewfinder resolution - 1,440k dots
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.64x 0.73x
Features
Slowest shutter speed 30 secs 30 secs
Maximum shutter speed 1/6000 secs 1/4000 secs
Continuous shooting rate 5.4fps 6.0fps
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Set white balance
Image stabilization
Built-in flash
Flash range 12.00 m (at ISO 100) 12.00 m
Flash options Auto, auto w/redeye reduction, flash on, flash on + redeye reduction, slow sync, trailing curtain sync, manual flash Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless
Hot shoe
AE bracketing
White balance bracketing
Maximum flash synchronize - 1/160 secs
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 1920 x 1080 (30p, 25p, 24p), 1280 x 720 (60p, 50p) 1920 x 1080 (60, 29.97 fps), 1440 x 1080 (30fps), 640 x 424 (29.97 fps)
Highest video resolution 1920x1080 1920x1080
Video format MPEG-4, H.264 MPEG-4, AVCHD, H.264
Microphone port
Headphone port
Connectivity
Wireless Built-In Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS Optional None
Physical
Environmental sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 678 grams (1.49 lbs) 506 grams (1.12 lbs)
Physical dimensions 123 x 91 x 73mm (4.8" x 3.6" x 2.9") 124 x 92 x 85mm (4.9" x 3.6" x 3.3")
DXO scores
DXO All around score not tested 75
DXO Color Depth score not tested 23.3
DXO Dynamic range score not tested 12.9
DXO Low light score not tested 799
Other
Battery life 410 images 500 images
Battery type Battery Pack Battery Pack
Battery model D-LI109 NP-FW50
Self timer Yes (2 or 12 secs) Yes (2 or 10 sec, 10 sec 3 or 5 images)
Time lapse feature
Storage type SD/SDHC/SDXC SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo
Card slots 1 1
Launch cost $581 $522