Pentax K-r vs Sony S2100
67 Imaging
51 Features
52 Overall
51
93 Imaging
34 Features
17 Overall
27
Pentax K-r vs Sony S2100 Key Specs
(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
(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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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.
Photobucket discusses licensing 13 billion images with AI firmsThe 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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Here is a sample of the gallery pictures for Pentax K-r & Sony Cyber-shot DSC-S2100. The whole galleries are provided at Pentax K-r Gallery & Sony S2100 Gallery.
Reasons to pick Pentax K-r over the Sony S2100
| K-r | S2100 | |||
|---|---|---|---|---|
| Revealed | March 2011 | January 2010 | Newer by 15 months | |
| Manually focus | More precise focus | |||
| Display resolution | 921k | 230k | Clearer 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 type | Fixed | Fixed | Fixed display | |
| Display dimensions | 3" | 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.
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.

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 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 Screen and ViewFinder
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Pentax K-r vs Sony S2100 Specifications
| Pentax K-r | Sony 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 |