Olympus 1 vs Pentax K-S1
79 Imaging
37 Features
65 Overall
48
69 Imaging
63 Features
70 Overall
65
Olympus 1 vs Pentax K-S1 Key Specs
(Full Review)
- 12MP - 1/1.7" Sensor
- 3" Tilting Display
- ISO 100 - 12800
- Optical Image Stabilization
- 1920 x 1080 video
- 28-300mm (F2.8) lens
- 402g - 116 x 87 x 57mm
- Announced November 2013
- Refreshed by Olympus 1s
(Full Review)
- 20MP - APS-C Sensor
- 3" Fixed Display
- 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
- Announced August 2014
- New Model is Pentax K-S2
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Its time to look a little more in depth at the Olympus 1 and Pentax K-S1, one being a Small Sensor Superzoom and the other is a Advanced DSLR by companies Olympus and Pentax. There exists a huge gap among the sensor resolutions of the 1 (12MP) and K-S1 (20MP) and the 1 (1/1.7") and K-S1 (APS-C) posses different sensor sizing.
Samsung Releases Faster Versions of EVO MicroSD CardsThe 1 was released 9 months prior to the K-S1 and they are both of a similar generation. Both of these cameras have different body design with the Olympus 1 being a SLR-like (bridge) camera and the Pentax K-S1 being a Mid-size SLR camera.
Before diving straight to a full comparison, here is a concise highlight of how the 1 grades against the K-S1 when considering portability, imaging, features and an overall grade.
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Following is a sample of the gallery pictures for Olympus Stylus 1 and Pentax K-S1. The complete galleries are viewable at Olympus 1 Gallery and Pentax K-S1 Gallery.
Reasons to pick Olympus 1 over the Pentax K-S1
| 1 | K-S1 | |||
|---|---|---|---|---|
| Display type | Tilting | Fixed | Tilting display | |
| Display resolution | 1040k | 921k | Sharper display (+119k dot) | |
| Touch display | Easily navigate |
Reasons to pick Pentax K-S1 over the Olympus 1
| K-S1 | 1 | |||
|---|---|---|---|---|
| Announced | August 2014 | November 2013 | More recent by 9 months |
Common features in the Olympus 1 and Pentax K-S1
| 1 | K-S1 | |||
|---|---|---|---|---|
| Manually focus | Dial accurate focusing | |||
| Display dimensions | 3" | 3" | Equal display measurement | |
| Selfie screen | Lack of selfie screen |
Olympus 1 vs Pentax K-S1 Physical Comparison
In case you're going to lug around your camera, you'll need to factor in its weight and measurements. The Olympus 1 provides external measurements of 116mm x 87mm x 57mm (4.6" x 3.4" x 2.2") along with a weight of 402 grams (0.89 lbs) and the Pentax K-S1 has proportions of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") and a weight of 558 grams (1.23 lbs).
Check the Olympus 1 and Pentax K-S1 in the new Camera and Lens Size Comparison Tool.
Always remember, the weight of an Interchangeable Lens Camera will change depending on the lens you select at that moment. Underneath is a front view dimensions comparison of the 1 versus the K-S1.

Considering dimensions and weight, the portability score of the 1 and K-S1 is 79 and 69 respectively.
Olympus 1 vs Pentax K-S1 Sensor Comparison
More often than not, it is very tough to visualize the gap in sensor measurements just by going through technical specs. The graphic here might provide you a much better sense of the sensor sizing in the 1 and K-S1.
As you can tell, each of these cameras have different resolutions and different sensor measurements. The 1 due to its smaller sensor is going to make getting shallower depth of field harder and the Pentax K-S1 will show greater detail as a result of its extra 8MP. Greater resolution will allow you to crop pics a bit more aggressively. The older 1 will be behind when it comes to sensor innovation.
Olympus 1 vs Pentax K-S1 Screen and ViewFinder
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Olympus 1 vs Pentax K-S1 Specifications
| Olympus Stylus 1 | Pentax K-S1 | |
|---|---|---|
| General Information | ||
| Company | Olympus | Pentax |
| Model | Olympus Stylus 1 | Pentax K-S1 |
| Class | Small Sensor Superzoom | Advanced DSLR |
| Announced | 2013-11-25 | 2014-08-27 |
| Body design | SLR-like (bridge) | Mid-size SLR |
| Sensor Information | ||
| Powered by | TruePic VI | Prime MII |
| Sensor type | BSI-CMOS | CMOS |
| Sensor size | 1/1.7" | APS-C |
| Sensor measurements | 7.44 x 5.58mm | 23.5 x 15.6mm |
| Sensor area | 41.5mm² | 366.6mm² |
| Sensor resolution | 12 megapixel | 20 megapixel |
| Anti aliasing filter | ||
| Aspect ratio | 1:1, 4:3, 3:2 and 16:9 | 3:2 |
| Maximum resolution | 3968 x 2976 | 5472 x 3648 |
| Maximum native ISO | 12800 | 51200 |
| Minimum native ISO | 100 | 100 |
| RAW format | ||
| Autofocusing | ||
| Manual focus | ||
| Touch focus | ||
| Autofocus continuous | ||
| Autofocus single | ||
| Tracking autofocus | ||
| Autofocus selectice | ||
| Center weighted autofocus | ||
| Multi area autofocus | ||
| Live view autofocus | ||
| Face detect autofocus | ||
| Contract detect autofocus | ||
| Phase detect autofocus | ||
| Number of focus points | 25 | 11 |
| Lens | ||
| Lens mounting type | fixed lens | Pentax KAF2 |
| Lens focal range | 28-300mm (10.7x) | - |
| Highest aperture | f/2.8 | - |
| Macro focus distance | 5cm | - |
| Number of lenses | - | 151 |
| Crop factor | 4.8 | 1.5 |
| Screen | ||
| Display type | Tilting | Fixed Type |
| Display sizing | 3 inch | 3 inch |
| Display resolution | 1,040k dot | 921k dot |
| Selfie friendly | ||
| Liveview | ||
| Touch friendly | ||
| Display tech | LCD | - |
| Viewfinder Information | ||
| Viewfinder | Electronic | Optical (pentaprism) |
| Viewfinder resolution | 1,440k dot | - |
| Viewfinder coverage | 100 percent | 100 percent |
| Viewfinder magnification | - | 0.64x |
| Features | ||
| Slowest shutter speed | 60 secs | 30 secs |
| Maximum shutter speed | 1/2000 secs | 1/6000 secs |
| Continuous shooting speed | 7.0 frames per sec | 5.4 frames per sec |
| Shutter priority | ||
| Aperture priority | ||
| Manually set exposure | ||
| Exposure compensation | Yes | Yes |
| Change white balance | ||
| Image stabilization | ||
| Built-in flash | ||
| Flash range | - | 10.00 m (at ISO 100) |
| Flash modes | Auto, redeye reduction, fill-on, off, redeye reduction slow sync, full, manual | Auto, auto + redeye, on, on + redeye reduction, slow sync, trailing curtain sync, manual |
| Hot shoe | ||
| AEB | ||
| WB bracketing | ||
| Maximum flash sync | 1/2000 secs | - |
| Exposure | ||
| Multisegment | ||
| Average | ||
| Spot | ||
| Partial | ||
| AF area | ||
| Center weighted | ||
| Video features | ||
| Supported video resolutions | 1920 x 1080 (30p), 1280 x 720 (30p); high speed: 640 x 480 (120p), 320 x 240 (240p) | 1920 x 1080 (30,25,24 fps), 1280 x 720 (60,50 fps) |
| Maximum video resolution | 1920x1080 | 1920x1080 |
| Video format | MPEG-4, H.264 | H.264 |
| Microphone input | ||
| Headphone input | ||
| Connectivity | ||
| Wireless | Built-In | Eye-Fi Connected |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
| GPS | None | Optional |
| Physical | ||
| Environment seal | ||
| Water proof | ||
| Dust proof | ||
| Shock proof | ||
| Crush proof | ||
| Freeze proof | ||
| Weight | 402 grams (0.89 lbs) | 558 grams (1.23 lbs) |
| Physical dimensions | 116 x 87 x 57mm (4.6" x 3.4" x 2.2") | 121 x 93 x 70mm (4.8" x 3.7" x 2.8") |
| DXO scores | ||
| DXO All around score | 51 | 78 |
| DXO Color Depth score | 20.7 | 23.5 |
| DXO Dynamic range score | 11.6 | 13.0 |
| DXO Low light score | 179 | 1061 |
| Other | ||
| Battery life | 410 photos | 410 photos |
| Form of battery | Battery Pack | Battery Pack |
| Battery model | BLS-5 | D-LI109 |
| Self timer | Yes (2 or 12 sec, custom) | Yes ( 2 or 12 seconds) |
| Time lapse recording | ||
| Storage media | SD/SDHC/SDXC card | SD/SDHC/SDXC |
| Storage slots | 1 | 1 |
| Retail price | $700 | $339 |