Pentax K-S1 vs Pentax K-x
69 Imaging
63 Features
70 Overall
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69 Imaging
52 Features
47 Overall
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Pentax K-S1 vs Pentax K-x Key Specs
(Full Review)
- 20MP - APS-C Sensor
- 3" Fixed Screen
- ISO 100 - 51200
- Sensor based Image Stabilization
- No Anti-Alias Filter
- 1/6000s Max Shutter
- 1920 x 1080 video
- Pentax KAF2 Mount
- 558g - 121 x 93 x 70mm
- Released August 2014
- Newer Model is Pentax K-S2
(Full Review)
- 12MP - APS-C Sensor
- 2.7" Fixed Screen
- ISO 100 - 6400 (Raise to 12800)
- Sensor based Image Stabilization
- 1/6000s Max Shutter
- 1280 x 720 video
- Pentax KAF2 Mount
- 580g - 123 x 92 x 68mm
- Revealed December 2009
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Let's look a bit more in depth at the Pentax K-S1 and Pentax K-x, one is a Advanced DSLR and the latter is a Entry-Level DSLR and both are sold by Pentax. There exists a significant gap among the image resolutions of the K-S1 (20MP) and K-x (12MP) but they possess the same exact sensor sizing (APS-C).
President Biden pushes bill mandating TikTok sale or banThe K-S1 was announced 4 years after the K-x which is a fairly sizable gap as far as camera technology is concerned. Both of the cameras offer different body type with the Pentax K-S1 being a Mid-size SLR camera and the Pentax K-x being a Compact SLR camera.
Before delving through a thorough comparison, below is a simple summary of how the K-S1 matches up vs the K-x when it comes to portability, imaging, features and an overall score.
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Below is a preview of the gallery photos for Pentax K-S1 and Pentax K-x. The whole galleries are provided at Pentax K-S1 Gallery and Pentax K-x Gallery.
Reasons to pick Pentax K-S1 over the Pentax K-x
| K-S1 | K-x | |||
|---|---|---|---|---|
| Revealed | August 2014 |  | December 2009 | More modern by 57 months |
| Screen sizing | 3" |  | 2.7" | Bigger screen (+0.3") |
| Screen resolution | 921k |  | 230k | Sharper screen (+691k dot) |
Reasons to pick Pentax K-x over the Pentax K-S1
| K-x | K-S1 |
|---|
Common features in the Pentax K-S1 and Pentax K-x
| K-S1 | K-x | |||
|---|---|---|---|---|
| Manually focus |  | More exact focus | ||
| Screen type | Fixed |  | Fixed | Fixed screen |
| Selfie screen |  | Lack of selfie screen | ||
| Touch friendly screen |  | Neither includes Touch friendly screen |
Pentax K-S1 vs Pentax K-x Physical Comparison
When you are intending to carry around your camera frequently, you have to take into account its weight and proportions. The Pentax K-S1 features outside dimensions of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") and a weight of 558 grams (1.23 lbs) and the Pentax K-x has measurements of 123mm x 92mm x 68mm (4.8" x 3.6" x 2.7") along with a weight of 580 grams (1.28 lbs).
Take a look at the Pentax K-S1 and Pentax K-x in the latest Camera and Lens Size Comparison Tool.
Take into consideration, the weight of an Interchangeable Lens Camera will differ dependant on the lens you have at the time. Following is the front view measurement comparison of the K-S1 compared to the K-x.
Taking into consideration dimensions and weight, the portability grade of the K-S1 and K-x is 69 and 69 respectively.
Pentax K-S1 vs Pentax K-x Sensor Comparison
Normally, its hard to imagine the difference in sensor sizes purely by checking out specs. The picture below may provide you a stronger sense of the sensor sizes in the K-S1 and K-x.
As you can plainly see, each of the cameras enjoy the same exact sensor sizing albeit different resolution. You should count on the Pentax K-S1 to show greater detail with its extra 8 Megapixels. Higher resolution can also let you crop pictures far more aggressively. The more modern K-S1 should have an advantage in sensor tech.
Pentax K-S1 vs Pentax K-x Screen and ViewFinder
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Pentax K-S1 vs Pentax K-x Specifications
| Pentax K-S1 | Pentax K-x | |
|---|---|---|
| General Information | ||
| Company | Pentax | Pentax |
| Model type | Pentax K-S1 | Pentax K-x |
| Type | Advanced DSLR | Entry-Level DSLR |
| Released | 2014-08-27 | 2009-12-23 |
| Physical type | Mid-size SLR | Compact SLR |
| Sensor Information | ||
| Powered by | Prime MII | Prime |
| Sensor type | CMOS | CMOS |
| Sensor size | APS-C | APS-C |
| Sensor measurements | 23.5 x 15.6mm | 23.6 x 15.8mm |
| Sensor surface area | 366.6mm² | 372.9mm² |
| Sensor resolution | 20 megapixels | 12 megapixels |
| Anti alias filter | ||
| Aspect ratio | 3:2 | 3:2 |
| Highest resolution | 5472 x 3648 | 4288 x 2848 |
| Highest native ISO | 51200 | 6400 |
| Highest boosted ISO | - | 12800 |
| Lowest native ISO | 100 | 100 |
| RAW support | ||
| Autofocusing | ||
| Focus manually | ||
| AF touch | ||
| Continuous AF | ||
| AF single | ||
| Tracking AF | ||
| AF selectice | ||
| Center weighted AF | ||
| AF multi area | ||
| Live view AF | ||
| Face detection AF | ||
| Contract detection AF | ||
| Phase detection AF | ||
| Total focus points | 11 | 11 |
| Lens | ||
| Lens mount type | Pentax KAF2 | Pentax KAF2 |
| Number of lenses | 151 | 151 |
| Crop factor | 1.5 | 1.5 |
| Screen | ||
| Type of screen | Fixed Type | Fixed Type |
| Screen size | 3" | 2.7" |
| Resolution of screen | 921k dots | 230k dots |
| Selfie friendly | ||
| Liveview | ||
| Touch functionality | ||
| Screen tech | - | TFT LCD monitor |
| Viewfinder Information | ||
| Viewfinder type | Optical (pentaprism) | Optical (pentamirror) |
| Viewfinder coverage | 100 percent | 96 percent |
| Viewfinder magnification | 0.64x | 0.57x |
| Features | ||
| Lowest shutter speed | 30s | 30s |
| Highest shutter speed | 1/6000s | 1/6000s |
| Continuous shooting rate | 5.4 frames per sec | 5.0 frames per sec |
| Shutter priority | ||
| Aperture priority | ||
| Expose Manually | ||
| Exposure compensation | Yes | Yes |
| Set WB | ||
| Image stabilization | ||
| Built-in flash | ||
| Flash distance | 10.00 m (at ISO 100) | 16.00 m |
| Flash settings | Auto, auto + redeye, on, on + redeye reduction, slow sync, trailing curtain sync, manual | Auto, On, Off, Red-Eye, Slow Sync, Rear curtain, Wireless |
| Hot shoe | ||
| AE bracketing | ||
| White balance bracketing | ||
| Highest flash synchronize | - | 1/180s |
| Exposure | ||
| Multisegment | ||
| Average | ||
| Spot | ||
| Partial | ||
| AF area | ||
| Center weighted | ||
| Video features | ||
| Video resolutions | 1920 x 1080 (30,25,24 fps), 1280 x 720 (60,50 fps) | 1280 x 720 (24 fps), 640 x 416 (24 fps) |
| Highest video resolution | 1920x1080 | 1280x720 |
| Video data format | H.264 | Motion JPEG |
| Microphone support | ||
| Headphone support | ||
| Connectivity | ||
| Wireless | Eye-Fi Connected | 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 | 558 grams (1.23 lbs) | 580 grams (1.28 lbs) |
| Dimensions | 121 x 93 x 70mm (4.8" x 3.7" x 2.8") | 123 x 92 x 68mm (4.8" x 3.6" x 2.7") |
| DXO scores | ||
| DXO All around rating | 78 | 72 |
| DXO Color Depth rating | 23.5 | 22.8 |
| DXO Dynamic range rating | 13.0 | 12.5 |
| DXO Low light rating | 1061 | 811 |
| Other | ||
| Battery life | 410 images | 1900 images |
| Type of battery | Battery Pack | Battery Pack |
| Battery ID | D-LI109 | 4 x AA |
| Self timer | Yes ( 2 or 12 seconds) | Yes (2 or 12 sec) |
| Time lapse feature | ||
| Type of storage | SD/SDHC/SDXC | SD/SDHC card |
| Card slots | Single | Single |
| Cost at launch | $339 | $600 |