Olympus E-M10 III vs Pentax Q-S1
80 Imaging
54 Features
75 Overall
62
92 Imaging
37 Features
54 Overall
43
Olympus E-M10 III vs Pentax Q-S1 Key Specs
(Full Review)
- 16MP - Four Thirds Sensor
- 3" Tilting Screen
- ISO 200 - 25600
- Sensor based 5-axis Image Stabilization
- 3840 x 2160 video
- Micro Four Thirds Mount
- 410g - 122 x 84 x 50mm
- Announced August 2017
- Superseded the Olympus E-M10 II
- Successor is Olympus E-M10 IV
(Full Review)
- 12MP - 1/1.7" Sensor
- 3" Fixed Screen
- ISO 100 - 12800
- Sensor based Image Stabilization
- 1/8000s Maximum Shutter
- 1920 x 1080 video
- Pentax Q Mount
- 203g - 105 x 58 x 34mm
- Launched August 2014
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Lets look more closely at the Olympus E-M10 III and Pentax Q-S1, both Entry-Level Mirrorless digital cameras by competitors Olympus and Pentax. There exists a large gap between the image resolutions of the E-M10 III (16MP) and Q-S1 (12MP) and the E-M10 III (Four Thirds) and Q-S1 (1/1.7") provide different sensor size.
Japan-exclusive Leica Leitz Phone 3 features big sensor and new modesThe E-M10 III was brought out 3 years after the Q-S1 which is quite a serious difference as far as technology is concerned. Both of the cameras feature different body design with the Olympus E-M10 III being a SLR-style mirrorless camera and the Pentax Q-S1 being a Rangefinder-style mirrorless camera.
Before diving right into a full comparison, here is a concise highlight of how the E-M10 III matches up vs the Q-S1 in relation to portability, imaging, features and an overall mark.
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Below is a preview of the gallery images for Olympus OM-D E-M10 Mark III & Pentax Q-S1. The entire galleries are viewable at Olympus E-M10 III Gallery & Pentax Q-S1 Gallery.
Reasons to pick Olympus E-M10 III over the Pentax Q-S1
| E-M10 III | Q-S1 | |||
|---|---|---|---|---|
| Launched | August 2017 | August 2014 | Newer by 38 months | |
| Screen type | Tilting | Fixed | Tilting screen | |
| Screen resolution | 1040k | 460k | Crisper screen (+580k dot) | |
| Touch screen | Quickly navigate |
Reasons to pick Pentax Q-S1 over the Olympus E-M10 III
| Q-S1 | E-M10 III |
|---|
Common features in the Olympus E-M10 III and Pentax Q-S1
| E-M10 III | Q-S1 | |||
|---|---|---|---|---|
| Manually focus | Very accurate focusing | |||
| Screen size | 3" | 3" | Same screen size | |
| Selfie screen | Neither has selfie screen |
Olympus E-M10 III vs Pentax Q-S1 Physical Comparison
When you are looking to travel with your camera, you will have to take into account its weight and proportions. The Olympus E-M10 III has exterior dimensions of 122mm x 84mm x 50mm (4.8" x 3.3" x 2.0") with a weight of 410 grams (0.90 lbs) whilst the Pentax Q-S1 has measurements of 105mm x 58mm x 34mm (4.1" x 2.3" x 1.3") accompanied by a weight of 203 grams (0.45 lbs).
See the Olympus E-M10 III and Pentax Q-S1 in our brand new Camera plus Lens Size Comparison Tool.
Remember, the weight of an ILC will differ dependant on the lens you are utilising during that time. Underneath is a front view sizing comparison of the E-M10 III and the Q-S1.

Considering dimensions and weight, the portability score of the E-M10 III and Q-S1 is 80 and 92 respectively.
Olympus E-M10 III vs Pentax Q-S1 Sensor Comparison
More often than not, it is very tough to visualize the difference between sensor dimensions just by going over technical specs. The image below might offer you a stronger sense of the sensor sizes in the E-M10 III and Q-S1.
As you have seen, each of these cameras feature different megapixels and different sensor dimensions. The E-M10 III due to its bigger sensor is going to make achieving shallow DOF easier and the Olympus E-M10 III will offer extra detail having its extra 4 Megapixels. Higher resolution can also help you crop photographs way more aggressively. The fresher E-M10 III provides a benefit with regard to sensor tech.
Olympus E-M10 III vs Pentax Q-S1 Screen and ViewFinder
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Olympus E-M10 III vs Pentax Q-S1 Specifications
| Olympus OM-D E-M10 Mark III | Pentax Q-S1 | |
|---|---|---|
| General Information | ||
| Brand | Olympus | Pentax |
| Model | Olympus OM-D E-M10 Mark III | Pentax Q-S1 |
| Class | Entry-Level Mirrorless | Entry-Level Mirrorless |
| Announced | 2017-08-31 | 2014-08-04 |
| Physical type | SLR-style mirrorless | Rangefinder-style mirrorless |
| Sensor Information | ||
| Processor | TruePic VIII | Q Engine |
| Sensor type | CMOS | BSI-CMOS |
| Sensor size | Four Thirds | 1/1.7" |
| Sensor dimensions | 17.4 x 13mm | 7.44 x 5.58mm |
| Sensor surface area | 226.2mm² | 41.5mm² |
| Sensor resolution | 16MP | 12MP |
| Anti aliasing filter | ||
| Aspect ratio | 4:3 | 1:1, 4:3, 3:2 and 16:9 |
| Highest resolution | 4608 x 3456 | 4000 x 3000 |
| Highest native ISO | 25600 | 12800 |
| Min native ISO | 200 | 100 |
| RAW support | ||
| Min boosted ISO | 100 | - |
| Autofocusing | ||
| Focus manually | ||
| Touch to focus | ||
| Continuous autofocus | ||
| Single autofocus | ||
| 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 | 121 | - |
| Lens | ||
| Lens mount | Micro Four Thirds | Pentax Q |
| Available lenses | 107 | 8 |
| Crop factor | 2.1 | 4.8 |
| Screen | ||
| Screen type | Tilting | Fixed Type |
| Screen sizing | 3" | 3" |
| Resolution of screen | 1,040k dots | 460k dots |
| Selfie friendly | ||
| Liveview | ||
| Touch capability | ||
| Viewfinder Information | ||
| Viewfinder type | Electronic | None |
| Viewfinder resolution | 2,360k dots | - |
| Viewfinder coverage | 100 percent | - |
| Viewfinder magnification | 0.62x | - |
| Features | ||
| Slowest shutter speed | 60 secs | 30 secs |
| Maximum shutter speed | 1/4000 secs | 1/8000 secs |
| Maximum silent shutter speed | 1/16000 secs | - |
| Continuous shooting rate | 8.6 frames/s | 5.0 frames/s |
| Shutter priority | ||
| Aperture priority | ||
| Manually set exposure | ||
| Exposure compensation | Yes | Yes |
| Change white balance | ||
| Image stabilization | ||
| Built-in flash | ||
| Flash range | 5.80 m (at ISO 100) | 4.90 m (at ISO 100) |
| Flash options | Auto, redeye, slow sync, 2nd-curtain slow sync, redeye slow sync, fill-in, manual, off | Auto, redeye reduction, slow sync, trailing curtain sync |
| External flash | ||
| AEB | ||
| White balance bracketing | ||
| Maximum flash synchronize | 1/250 secs | - |
| Exposure | ||
| Multisegment | ||
| Average | ||
| Spot | ||
| Partial | ||
| AF area | ||
| Center weighted | ||
| Video features | ||
| Supported video resolutions | 3840 x 2160 @ 30p / 102 Mbps, MOV, H.264, Linear PCM | 1920 x 1080 (30,25, 24p), 1280 x 720 (30, 25, 24p), 640 x 480 (30, 25, 24p) |
| Highest video resolution | 3840x2160 | 1920x1080 |
| Video format | MPEG-4, H.264 | MPEG-4, H.264 |
| Mic support | ||
| Headphone support | ||
| Connectivity | ||
| Wireless | Built-In | None |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
| GPS | None | None |
| Physical | ||
| Environment sealing | ||
| Water proof | ||
| Dust proof | ||
| Shock proof | ||
| Crush proof | ||
| Freeze proof | ||
| Weight | 410 gr (0.90 lbs) | 203 gr (0.45 lbs) |
| Physical dimensions | 122 x 84 x 50mm (4.8" x 3.3" x 2.0") | 105 x 58 x 34mm (4.1" x 2.3" x 1.3") |
| DXO scores | ||
| DXO All around score | not tested | not tested |
| DXO Color Depth score | not tested | not tested |
| DXO Dynamic range score | not tested | not tested |
| DXO Low light score | not tested | not tested |
| Other | ||
| Battery life | 330 shots | 250 shots |
| Battery style | Battery Pack | Battery Pack |
| Battery model | BLS-50 | D-LI68 |
| Self timer | Yes (2 or 12 secs, custom) | Yes (2 or 12 sec) |
| Time lapse feature | ||
| Storage type | SD/SDHC/SDXC (UHS-I/II supported) | SD/SDHC/SDXC card |
| Card slots | 1 | 1 |
| Cost at launch | $650 | $250 |