In depth comparison and review of Pentax K-S1 and Olympus OM-D E-M10 Mark III. Compare design, sensors, proximity features, memory capacities and other important specifications and features to easily choose the right camera for you. Our goal is to help you uncover differences between the products and find the digital camera that will best fit your needs.
| DESIGN AND DIMENSIONS | Pentax K-S1 | Olympus OM-D E-M10 Mark III |
|---|
| Product Type | Digital camera - 1080p - SLR with Live View mode, movie recording | Digital camera - 4K - mirrorless system |
|---|---|---|
| Lens Included | Body only | Body only |
| Height | 9.3 cm | 8.36 cm |
| Width | 12 cm | 12.15 cm |
| Depth | 7 cm | 4.95 cm |
| Weight | 485 g | 362 g |
| Weight Details | - | Camera body only: 362 g Camera with battery and memory card: 410 g |
| Enclosure Colour | White | Black | Black | Silver |
| SENSOR | Pentax K-S1 | Olympus OM-D E-M10 Mark III |
|---|
| Sensor Resolution | 20.12 Megapixel | 16.1 Megapixel |
|---|---|---|
| Optical Sensor Type | CMOS | Live MOS |
| Total Pixels | 20,420,000 pixels | 17,200,000 pixels |
| Effective Sensor Resolution | 20,120,000 pixels | 16,100,000 pixels |
| Optical Sensor Size | APS-C (23.5 x 15.6 mm) | Four Thirds (4/3") |
| Frame Rate (Max Resolution) | - | 30 fps |
| Sensor Dust Reduction | Yes | Yes |
| Sensor Features | Special Protect (SP) coating | Supersonic Wave Filter (SWF) |
| Image Stabiliser | - | Optical (5-axis image sensor shift mechanism) |
| Built-in Optical Image Stabiliser | - | Yes |
| Sensors | - | Digital level metre |
| PROCESSOR | Pentax K-S1 | Olympus OM-D E-M10 Mark III |
|---|
| Image Processor | PRIME MII | TruePic VIII |
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| LENS | Pentax K-S1 | Olympus OM-D E-M10 Mark III |
|---|
| Lens Mounting Type | Pentax KAF2 | Micro Four Thirds |
|---|
| FOCUSING | Pentax K-S1 | Olympus OM-D E-M10 Mark III |
|---|
| Auto Focus | TTL phase detection | TTL contrast detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | 11 | 121 |
| Auto Focus Features | - | Focus Peaking function |
| AE/AF Control | Face-priority AF, Subject-tracking AF | Face-priority AF, Subject-tracking AF, Touch Area AF, Eye detection AF |
| Face Detection | Yes | Eye Detect AF, face-priority AF function |
| VIEWFINDER | Pentax K-S1 | Olympus OM-D E-M10 Mark III |
|---|
| Viewfinder Type | Optical - fixed eye-level pentaprism | Built-in - electronic |
|---|---|---|
| Viewfinder Colour Support | - | Colour |
| Viewfinder Resolution | - | 2,360,000 pixels |
| Optical Viewfinder Field Coverage | 100% | 100% |
| Optical Viewfinder Magnification | 0.95x | 1.23x |
| Optical Viewfinder Dioptric Correction Range | -2.5 to +1.5 | -4 to +2 |
| Field of View Crop Factor | - | 2 |
| EXPOSURE & WHITE BALANCE | Pentax K-S1 | Olympus OM-D E-M10 Mark III |
|---|
| ISO (Max) | 51200 | 25600 |
|---|---|---|
| Native ISO | 100-51200 | 100-6400 |
| Extended ISO (Max) | - | 25600 |
| Light Sensitivity | ISO 100-51200, ISO auto (100-51200) | ISO 100-25600, ISO auto (100-25600) |
| Exposure Metering | Multi-segment, centre-weighted, spot | Multi-segment, centre-weighted, spot |
| Exposure Metering Zones | 77 | 324 |
| Exposure Modes | Programme, automatic, manual, aperture-priority, shutter-priority, shutter & aperture priority | Programme, bulb, automatic, manual, aperture-priority, shutter-priority |
| Bracketing Modes | - | Art Filter bracketing, white balance bracketing |
| Shooting Programs | Landscape, portrait mode, macro, museum, surf & snow, PET, Blue Sky, food, night scene, sunset, candle, night snapshot, night scene with portrait, kids, Stage, night scene HDR, moving object, forest, backlight silhouette | - |
| Special Effects | Natural, bright, Vibrant, monochrome, Muted, landscape, portrait, Cross Process, Bleach Bypass, Radiant, Reversal Film, Tone Expansion, Cold vintage, Colour Fade, Bold Monochrome, Unicolour Bold, Clear Tone, Warm Fade, Brilliant Colour, Infrared Filter | - |
| White Balance | Custom, automatic, presets | Custom, automatic, presets |
| White Balance Presets | Cloudy, tungsten light, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (warm white), Color Temperature Enhancement (CTE), fluorescent light (daylight colour), fluorescent light (daylight white) | Fluorescent, sunlight, tungsten light, Flash, shade, overcast, 2000K - 14000K |
| Shutter Type | Mechanical electronically-controlled | Mechanical, electronic |
| Max Shutter Speed | 1/6000 sec | 1/16000 sec |
| Min Shutter Speed | 30 sec | 60 sec |
| Exposure Compensation | ±5 EV range, in 1/2 or 1/3 EV steps | ±5 EV range, in 1/3 EV steps |
| White Balance Bracketing | Yes | Yes |
| X-sync Speed | 1/180 sec | 1/250sec, 1/4000 sec |
| Exposure Range | EV 0-22 (ISO 100) | EV -2-20 (ISO 100) |
| DISPLAY | Pentax K-S1 | Olympus OM-D E-M10 Mark III |
|---|
| Type | 3" LCD display | 3" LCD display |
|---|---|---|
| Touch Screen | - | Yes |
| Display Format | 921,000 pixels | 1,040,000 pixels |
| Display Form Factor | Built-in | Folding |
| Display Features | Colour control, display brightness control | Colour control, display brightness control |
| FLASH | Pentax K-S1 | Olympus OM-D E-M10 Mark III |
|---|
| Camera Flash | Pop-up flash | Pop-up flash |
|---|---|---|
| Guide Number (m / ISO 100) | 10 | 5.8 |
| Flash Modes | Fill-in mode, rear curtain sync, slow synchro, auto mode, flash OFF mode, red-eye reduction | Fill-in mode, rear curtain sync, slow synchro, auto mode, flash OFF mode, red-eye reduction |
| Red-Eye Reduction | Yes | Yes |
| Features | AF illuminator, flash +/- compensation | AF illuminator |
| VIDEOGRAPHY / CAMCORDER | Pentax K-S1 | Olympus OM-D E-M10 Mark III |
|---|
| Digital Video Format | H.264 | H.264, MOV |
|---|---|---|
| Image Recording Format | JPEG, DNG (RAW) + JPEG, DNG (RAW) | JPEG, RAW, RAW + JPEG, MPO |
| Max Video Resolution | 1920 x 1080 | 3840 x 2160 |
| Audio Signal Format | - | PCM |
| Microphone Operation Mode | Mono | Stereo |
| Microphone Features | Sensitivity control | Wind noise reduction, sensitivity control |
| MEMORY | Pentax K-S1 | Olympus OM-D E-M10 Mark III |
|---|
| Memory Card Slot | SD card | SD card |
|---|---|---|
| Supported Memory Cards | SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDXC UHS-I Memory Card | SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card |
| Memory Card Included | - | No |
| Image Storage | - | RAW 4608 x 3456 - 17 MB JPEG 4608 x 3456 - 7.5 MB JPEG 4608 x 3456 - 3.5 MB JPEG 3200 x 2400 - 1.7 MB JPEG 1280 x 960 - 0.4 MB JPEG 640 x 480 |
| Video Capture | H.264 - 1920 x 1080 - 30 fps H.264 - 1920 x 1080 - 25 fps H.264 - 1920 x 1080 - 24 fps |
MOV - 3840 x 2160 p - 30 fps MOV - 3840 x 2160 p - 25 fps MOV - 3840 x 2160 p - 24 fps MOV - 1920 x 1080 p - 60 fps MOV - 1920 x 1080 p - 50 fps MOV - 1920 x 1080 p - 30 fps MOV - 1920 x 1080 p - 25 fps MOV - 1920 x 1080 p - 24 fps MOV - 1280 x 720 p - 30 fps MOV - 1280 x 720 p - 25 fps MOV - 1280 x 720 p - 24 fps |
| BATTERY AND CHARGING | Pentax K-S1 | Olympus OM-D E-M10 Mark III |
|---|
| Battery Type | Pentax D-Li109 Lithium Ion | Olympus BLS-5 Lithium Ion |
|---|---|---|
| Details | Pentax D-Li109 Li-ion rechargeable battery (included) | Olympus BLS-5 Li-ion rechargeable battery (included) |
| Battery Life | Photo shooting - 480 shots (50% flash usage) Playback - 4.5 hours |
Photo shooting - 330 shots (50% with Live View) Video recording - 1.3 hours |
| CONNECTIONS | Pentax K-S1 | Olympus OM-D E-M10 Mark III |
|---|
| Interface | HDMI | HDMI, USB 2.0, IEEE 802.11b/g/n |
|---|---|---|
| Connectivity Features | - | Remote control via mobile devices, remote live view, QR code scanning |
| Print Standard | DPOF support, Exif Print support | Direct print, DPOF support, Exif Print support, PictBridge support |
| Flash Terminal | Hot shoe | Hot shoe |
| Connector Type | USB 2.0 HDMI output (19 pin micro HDMI Type D) |
USB 2.0 HDMI output (19 pin micro HDMI Type D) |
| FEATURES | Pentax K-S1 | Olympus OM-D E-M10 Mark III |
|---|
| Self-Timer Delay | 2sec, 12sec | 2sec, 12sec |
|---|---|---|
| Continuous Shooting Speed | 3 frames per second, 5.4 frames per second | 8.6 frames per second, 4.8 frames per second |
| HDR Mode | Auto HDR mode | Auto HDR mode |
| Additional Features | RGB primary colour filter, depth-of-field preview button, digital image rotation, camera orientation detection, histogram display, AE lock, AF lock, cropping an image, resizing an image, saturation control, in-camera film editing, in-camera RAW processing, HDR image enhancement technology, hue control, Eye-Fi Card Ready, LED body illumination | Built-in speaker, RGB primary colour filter, auto power save, histogram display, AE lock, AF lock, shadow point display, interval shooting mode, highlight point display, in-camera RAW processing, high-speed recording, Dual Axis Electronic Level, GPS via mobile |
| OTHERS | Pentax K-S1 | Olympus OM-D E-M10 Mark III |
|---|
| Included Accessories | Battery charger, body cap, shoulder strap, eyecup, shoe cap | Battery charger, body cap, shoulder strap, USB cable |
|---|---|---|
| Software | Drivers & Utilities | - |
| Max Operating Temperature | 40 °C | 40 °C |
| Min Operating Temperature | -10 °C | 0 °C |
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