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Pentax K-r vs Sony S2100

Portability
67
Imaging
51
Features
52
Overall
51
Pentax K-r front
 
Sony Cyber-shot DSC-S2100 front
Portability
93
Imaging
34
Features
17
Overall
27

Pentax K-r vs Sony S2100 Key Specs

Pentax K-r
(Full Review)
  • 12MP - APS-C Sensor
  • 3" Fixed Screen
  • ISO 200 - 12800 (Bump to 25600)
  • Sensor based Image Stabilization
  • 1/6000s Max Shutter
  • 1280 x 720 video
  • Pentax KAF2 Mount
  • 598g - 125 x 97 x 68mm
  • Released March 2011
Sony S2100
(Full Review)
  • 12MP - 1/2.3" Sensor
  • 3" Fixed Display
  • ISO 100 - 3200
  • 640 x 480 video
  • 33-105mm (F3.1-5.6) lens
  • 167g - 98 x 61 x 27mm
  • Revealed January 2010
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Pentax K-r vs Sony S2100 Overview

Let's look a little more in depth at the Pentax K-r versus Sony S2100, former is a Entry-Level DSLR while the other is a Small Sensor Compact by manufacturers Pentax and Sony. The image resolution of the K-r (12MP) and the S2100 (12MP) is fairly comparable but the K-r (APS-C) and S2100 (1/2.3") have totally different sensor sizing.

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The K-r was introduced 15 months after the S2100 making them a generation away from one another. Each of these cameras have different body design with the Pentax K-r being a Compact SLR camera and the Sony S2100 being a Compact camera.

Before diving into a in-depth comparison, here is a quick view of how the K-r matches up against the S2100 when considering portability, imaging, features and an overall mark.

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Reasons to pick Pentax K-r over the Sony S2100

 K-r S2100 
RevealedMarch 2011January 2010Newer by 15 months
Manually focus More precise focus
Display resolution921k230kClearer display (+691k dot)

Reasons to pick Sony S2100 over the Pentax K-r

 S2100 K-r 

Common features in the Pentax K-r and Sony S2100

 K-r S2100 
Display typeFixed Fixed Fixed display
Display dimensions3"3"Equal display measurement
Selfie screen Neither features selfie screen
Touch display Neither features Touch display

Pentax K-r vs Sony S2100 Physical Comparison

If you are looking to travel with your camera frequently, you will want to factor its weight and volume. The Pentax K-r enjoys outside dimensions of 125mm x 97mm x 68mm (4.9" x 3.8" x 2.7") accompanied by a weight of 598 grams (1.32 lbs) whilst the Sony S2100 has sizing of 98mm x 61mm x 27mm (3.9" x 2.4" x 1.1") along with a weight of 167 grams (0.37 lbs).

See the Pentax K-r versus Sony S2100 in our completely new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember that, the weight of an ILC will vary based on the lens you are working with at the time. Following is a front view sizing comparison of the K-r and the S2100.

Pentax K-r vs Sony S2100 size comparison

Taking into account dimensions and weight, the portability grade of the K-r and S2100 is 67 and 93 respectively.

Pentax K-r vs Sony S2100 top view buttons comparison

Pentax K-r vs Sony S2100 Sensor Comparison

Normally, it can be difficult to see the difference in sensor dimensions only by checking out specifications. The image here will offer you a clearer sense of the sensor dimensions in the K-r and S2100.

Plainly, both of those cameras provide the same megapixel count but not the same sensor dimensions. The K-r offers the larger sensor which is going to make getting bokeh simpler. The more modern K-r is going to have a benefit in sensor tech.

Pentax K-r vs Sony S2100 sensor size comparison

Pentax K-r vs Sony S2100 Screen and ViewFinder

Pentax K-r vs Sony S2100 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-r Portrait photography highlights
Sony S2100 Portrait photography highlights
62
you can focus manually
nice sensor size (APS-C)
supports face detect focus
saves RAW files
sensor resolution low (12MP)
20
lack of manual focus
manual mode not available
no external flash support
low megapixels (12MP)
sensor is tiny (1/2.3")
lacks RAW format
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Street Comparison

Street photography with Pentax K-r
Street photography with Sony S2100
66
has image stabilization (Sensor based)
nice sensor size (APS-C)
saves RAW files
screen is fixed
46
fixed screen
does not have image stabilization
sensor is tiny (1/2.3")
lacks RAW format
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Sports Comparison

Sports photography with Pentax K-r
Sports photography with Sony S2100
54
max shutter speed is good (1/6,000 seconds)
has image stabilization (Sensor based)
nice sensor size (APS-C)
sensor has phase detect auto focus
very slow continuous shooting (6.0 frames per second)
sensor resolution low (12MP)
low battery (470 shots)
17
max shutter speed is low (1/1,200s)
slow frames per second (1.0 frames per second)
no shutter priority
does not have image stabilization
low megapixels (12 megapixels)
sensor is tiny (1/2.3")
lacks phase detect auto focus
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Travel Comparison

Pentax K-r Travel photography information
Sony S2100 Travel photography information
47
has built in flash
low battery (470 CIPA)
sensor resolution low (12MP)
display isn't selfie friendly
50
has built in flash
missing Time Lapse mode
low megapixels (12 megapixels)
does not posses selfie friendly screen
wide angle not great (33mm)
sluggish max aperture (f3.1)
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Landscape Comparison

Pentax K-r Landscape photography features
Sony S2100 Landscape photography features
64
you can focus manually
switch lenses (Pentax KAF2 mount)
nice screen size (3")
has image stabilization (Sensor based)
nice sensor size (APS-C)
saves RAW files
sensor resolution low (12 megapixels)
low battery (470 CIPA)
27
screen is a decent size (3 inches)
lack of manual focus
cannot change lenses (fixed lens mount)
wide angle not great (33mm)
sluggish max aperture (f3.1)
manual mode not available
does not have image stabilization
low megapixels (12 megapixels)
sensor is tiny (1/2.3")
lacks RAW format
missing Time Lapse mode
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Vlogging Comparison

Pentax K-r Vlogging details
Sony S2100 Vlogging details
26
has image stabilization (Sensor based)
supports face detect focus
display isn't selfie friendly
video resolution low (1280 x 720 resolution)
no microphone support
22
wide angle not great (33mm)
sluggish max aperture (f3.1)
does not posses selfie friendly screen
does not have image stabilization
low quality video (640 x 480 pixels)
missing external mic support
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Pentax K-r vs Sony S2100 Specifications

Detailed spec comparison table for Pentax K-r and Sony S2100
 Pentax K-rSony Cyber-shot DSC-S2100
General Information
Make Pentax Sony
Model Pentax K-r Sony Cyber-shot DSC-S2100
Class Entry-Level DSLR Small Sensor Compact
Released 2011-03-11 2010-01-07
Physical type Compact SLR Compact
Sensor Information
Powered by Prime II Bionz
Sensor type CMOS CCD
Sensor size APS-C 1/2.3"
Sensor dimensions 23.6 x 15.8mm 6.17 x 4.55mm
Sensor surface area 372.9mm² 28.1mm²
Sensor resolution 12MP 12MP
Anti aliasing filter
Aspect ratio 3:2 4:3, 3:2 and 16:9
Max resolution 4288 x 2848 4000 x 3000
Max native ISO 12800 3200
Max enhanced ISO 25600 -
Minimum native ISO 200 100
RAW data
Minimum enhanced ISO 100 -
Autofocusing
Focus manually
Autofocus touch
Continuous autofocus
Autofocus single
Autofocus tracking
Autofocus selectice
Center weighted autofocus
Autofocus multi area
Live view autofocus
Face detection focus
Contract detection focus
Phase detection focus
Number of focus points 11 9
Cross focus points 9 -
Lens
Lens mount Pentax KAF2 fixed lens
Lens focal range - 33-105mm (3.2x)
Largest aperture - f/3.1-5.6
Macro focus range - 5cm
Number of lenses 151 -
Focal length multiplier 1.5 5.8
Screen
Type of screen Fixed Type Fixed Type
Screen sizing 3 inch 3 inch
Screen resolution 921k dots 230k dots
Selfie friendly
Liveview
Touch function
Screen technology TFT LCD monitor -
Viewfinder Information
Viewfinder type Optical (pentamirror) None
Viewfinder coverage 96 percent -
Viewfinder magnification 0.57x -
Features
Minimum shutter speed 30s 1s
Fastest shutter speed 1/6000s 1/1200s
Continuous shutter rate 6.0 frames/s 1.0 frames/s
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes -
Set white balance
Image stabilization
Inbuilt flash
Flash range 12.00 m (at ISO 100) 3.30 m
Flash modes Auto, Red-eye Reduction, Slow-speed Sync, Trailing Curtain Sync, High-Speed Sync and Wireless Sync Auto, On, Off, Slow syncro
Hot shoe
AEB
White balance bracketing
Fastest flash synchronize 1/180s -
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 1280 x 720 (25 fps), 640 x 480 (25 fps) 640 x 480 (30 fps), 320 x 240 (30 fps)
Max video resolution 1280x720 640x480
Video data format Motion JPEG Motion JPEG
Mic support
Headphone support
Connectivity
Wireless None None
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 598 gr (1.32 lb) 167 gr (0.37 lb)
Physical dimensions 125 x 97 x 68mm (4.9" x 3.8" x 2.7") 98 x 61 x 27mm (3.9" x 2.4" x 1.1")
DXO scores
DXO Overall score 72 not tested
DXO Color Depth score 22.9 not tested
DXO Dynamic range score 12.4 not tested
DXO Low light score 755 not tested
Other
Battery life 470 photos -
Battery style Battery Pack -
Battery model D-LI109,4 x AA 2 x AA
Self timer Yes (2 or 12 sec) Yes (2 or 10 sec)
Time lapse feature
Type of storage SD/SDHC Memory Stick Duo/Pro Duo, optional SD, Internal
Card slots Single Single
Launch cost $1,100 $0