Pentax K-5 vs Samsung GX-20
60 Imaging
55 Features
82 Overall
65
58 Imaging
52 Features
52 Overall
52
Pentax K-5 vs Samsung GX-20 Key Specs
(Full Review)
- 16MP - APS-C Sensor
- 3" Fixed Display
- ISO 80 - 12800 (Boost to 51200)
- Sensor based Image Stabilization
- 1/8000s Maximum Shutter
- 1920 x 1080 video
- Pentax KAF2 Mount
- 740g - 131 x 97 x 73mm
- Announced December 2010
- Older Model is Pentax K-7
- Renewed by Pentax K-5 IIs
(Full Review)
- 15MP - APS-C Sensor
- 2.7" Fixed Display
- ISO 100 - 3200 (Expand to 6400)
- Sensor based Image Stabilization
- No Video
- Pentax KAF2 Mount
- 800g - 142 x 101 x 72mm
- Launched January 2008
- Succeeded the Samsung GX-10
Samsung Releases Faster Versions of EVO MicroSD Cards Pentax K-5 vs Samsung GX-20 Overview
On this page, we are evaluating the Pentax K-5 versus Samsung GX-20, both Advanced DSLR cameras by companies Pentax and Samsung. The sensor resolution of the K-5 (16MP) and the GX-20 (15MP) is very comparable and both cameras provide the same sensor measurements (APS-C).
Pentax 17 Pre-Orders Outperform Expectations by a LandslideThe K-5 was announced 2 years later than the GX-20 and that is a fairly sizable difference as far as camera technology is concerned. Each of the cameras have the same body design (Mid-size SLR).
Before we go right into a full comparison, here is a quick introduction of how the K-5 matches up vs the GX-20 with regard to portability, imaging, features and an overall grade.
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Below is a sample of the gallery pics for Pentax K-5 & Samsung GX-20. The whole galleries are viewable at Pentax K-5 Gallery & Samsung GX-20 Gallery.
Reasons to pick Pentax K-5 over the Samsung GX-20
| K-5 | GX-20 | |||
|---|---|---|---|---|
| Launched | December 2010 | January 2008 | More recent by 36 months | |
| Display dimensions | 3" | 2.7" | Larger display (+0.3") | |
| Display resolution | 921k | 230k | Crisper display (+691k dot) |
Reasons to pick Samsung GX-20 over the Pentax K-5
| GX-20 | K-5 |
|---|
Common features in the Pentax K-5 and Samsung GX-20
| K-5 | GX-20 | |||
|---|---|---|---|---|
| Manually focus | Very accurate focus | |||
| Display type | Fixed | Fixed | Fixed display | |
| Selfie screen | Lacking selfie screen | |||
| Touch friendly display | Neither contains Touch friendly display |
Pentax K-5 vs Samsung GX-20 Physical Comparison
When you are intending to lug around your camera frequently, you'll need to factor in its weight and measurements. The Pentax K-5 has got external measurements of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") along with a weight of 740 grams (1.63 lbs) whilst the Samsung GX-20 has proportions of 142mm x 101mm x 72mm (5.6" x 4.0" x 2.8") accompanied by a weight of 800 grams (1.76 lbs).
Analyze the Pentax K-5 versus Samsung GX-20 in our newest Camera & Lens Size Comparison Tool.
Bear in mind, the weight of an ILC will change based on the lens you have chosen at that moment. The following is a front view proportions comparison of the K-5 compared to the GX-20.

Factoring in dimensions and weight, the portability grade of the K-5 and GX-20 is 60 and 58 respectively.
Pentax K-5 vs Samsung GX-20 Sensor Comparison
Normally, it's hard to see the contrast in sensor measurements just by going through specs. The graphic underneath will provide you a greater sense of the sensor measurements in the K-5 and GX-20.
As you can plainly see, each of these cameras provide the same sensor dimensions but not the same resolution. You can expect to see the Pentax K-5 to produce more detail with its extra 1 Megapixels. Greater resolution can also make it easier to crop pics more aggressively. The younger K-5 is going to have a benefit when it comes to sensor tech.
Pentax K-5 vs Samsung GX-20 Screen and ViewFinder
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Pentax K-5 vs Samsung GX-20 Specifications
| Pentax K-5 | Samsung GX-20 | |
|---|---|---|
| General Information | ||
| Brand | Pentax | Samsung |
| Model type | Pentax K-5 | Samsung GX-20 |
| Class | Advanced DSLR | Advanced DSLR |
| Announced | 2010-12-18 | 2008-01-24 |
| Physical type | Mid-size SLR | Mid-size SLR |
| Sensor Information | ||
| Chip | Prime II | - |
| Sensor type | CMOS | CMOS |
| Sensor size | APS-C | APS-C |
| Sensor measurements | 23.7 x 15.7mm | 23.4 x 15.6mm |
| Sensor area | 372.1mm² | 365.0mm² |
| Sensor resolution | 16 megapixel | 15 megapixel |
| Anti alias filter | ||
| Aspect ratio | 3:2 | - |
| Highest resolution | 4928 x 3264 | 4688 x 3120 |
| Highest native ISO | 12800 | 3200 |
| Highest boosted ISO | 51200 | 6400 |
| Min native ISO | 80 | 100 |
| RAW format | ||
| Autofocusing | ||
| Focus manually | ||
| Touch to focus | ||
| Continuous AF | ||
| AF single | ||
| Tracking AF | ||
| Selective AF | ||
| AF center weighted | ||
| AF multi area | ||
| AF live view | ||
| Face detect focusing | ||
| Contract detect focusing | ||
| Phase detect focusing | ||
| Total focus points | 11 | 11 |
| Cross type focus points | 9 | - |
| Lens | ||
| Lens support | Pentax KAF2 | Pentax KAF2 |
| Amount of lenses | 151 | 151 |
| Crop factor | 1.5 | 1.5 |
| Screen | ||
| Display type | Fixed Type | Fixed Type |
| Display size | 3 inches | 2.7 inches |
| Resolution of display | 921k dots | 230k dots |
| Selfie friendly | ||
| Liveview | ||
| Touch functionality | ||
| Display tech | TFT LCD monitor | - |
| Viewfinder Information | ||
| Viewfinder type | Optical (pentaprism) | Optical (pentaprism) |
| Viewfinder coverage | 100 percent | 95 percent |
| Viewfinder magnification | 0.61x | 0.64x |
| Features | ||
| Lowest shutter speed | 30 seconds | 30 seconds |
| Highest shutter speed | 1/8000 seconds | 1/4000 seconds |
| Continuous shooting rate | 7.0 frames/s | 3.0 frames/s |
| Shutter priority | ||
| Aperture priority | ||
| Manual mode | ||
| Exposure compensation | Yes | Yes |
| Set WB | ||
| Image stabilization | ||
| Integrated flash | ||
| Flash distance | 13.00 m (at ISO 100) | 13.00 m (at ISO 100) |
| Flash modes | Auto, On, Off, Red-eye, Slow sync, High speed, Rear curtain and Wireless | Auto, Red-Eye, Slow, Red-Eye Slow, Rear curtain, wireless |
| External flash | ||
| AEB | ||
| White balance bracketing | ||
| Highest flash synchronize | 1/180 seconds | 1/180 seconds |
| Exposure | ||
| Multisegment exposure | ||
| Average exposure | ||
| Spot exposure | ||
| Partial exposure | ||
| AF area exposure | ||
| Center weighted exposure | ||
| Video features | ||
| Video resolutions | 1920 x 1080 (25 fps), 1280 x 720 (25, 30 fps), 640 x 424 (25, 30 fps) | - |
| Highest video resolution | 1920x1080 | None |
| Video format | Motion JPEG | - |
| Microphone 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 | ||
| Environment sealing | ||
| Water proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 740 grams (1.63 lbs) | 800 grams (1.76 lbs) |
| Physical dimensions | 131 x 97 x 73mm (5.2" x 3.8" x 2.9") | 142 x 101 x 72mm (5.6" x 4.0" x 2.8") |
| DXO scores | ||
| DXO All around rating | 82 | 68 |
| DXO Color Depth rating | 23.7 | 23.1 |
| DXO Dynamic range rating | 14.1 | 11.2 |
| DXO Low light rating | 1162 | 714 |
| Other | ||
| Battery life | 980 pictures | - |
| Style of battery | Battery Pack | - |
| Battery ID | D-LI90 | - |
| Self timer | Yes ( 2 or 12 seconds) | Yes (2 or 10 sec) |
| Time lapse recording | ||
| Type of storage | SD/SDHC/SDXC | SD/MMC/SDHC card |
| Card slots | Single | Single |
| Retail pricing | $800 | $850 |