In depth comparison and review of Pentax K-3 and Pentax K-S1. 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-3 | Pentax K-S1 |
|---|
| Product Type | Digital camera - SLR with movie recording | Digital camera - 1080p - SLR with Live View mode, movie recording |
|---|---|---|
| Lens Included | Body only | Body only |
| Height | 10 cm | 9.3 cm |
| Width | 13.15 cm | 12 cm |
| Depth | 7.75 cm | 7 cm |
| Weight | 715 g | 485 g |
| Body Material | Magnesium alloy | - |
| Enclosure Colour | Black | White | Black |
| Protection | Weatherproof, freezeproof, dust-resistant | - |
| SENSOR | Pentax K-3 | Pentax K-S1 |
|---|
| Sensor Resolution | 23.35 Megapixel | 20.12 Megapixel |
|---|---|---|
| Optical Sensor Type | CMOS | CMOS |
| Total Pixels | 24,710,000 pixels | 20,420,000 pixels |
| Effective Sensor Resolution | 23,350,000 pixels | 20,120,000 pixels |
| Optical Sensor Size | APS-C (23.5 x 15.6 mm) | APS-C (23.5 x 15.6 mm) |
| Sensor Dust Reduction | - | Yes |
| Sensor Features | Dust Reduction (image sensor vibration), anti-aliasing simulator function | Special Protect (SP) coating |
| Image Stabiliser | Optical (image sensor shift mechanism) | - |
| Built-in Optical Image Stabiliser | Yes | - |
| Sensors | Dust alert sensor, digital level metre | - |
| PROCESSOR | Pentax K-3 | Pentax K-S1 |
|---|
| Image Processor | PRIME III | PRIME MII |
|---|
| LENS | Pentax K-3 | Pentax K-S1 |
|---|
| Lens Mounting Type | Pentax K | Pentax KAF2 |
|---|
| FOCUSING | Pentax K-3 | Pentax K-S1 |
|---|
| Auto Focus | TTL phase detection | TTL phase detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | 27 | 11 |
| AE/AF Control | - | Face-priority AF, Subject-tracking AF |
| Face Detection | Yes | Yes |
| VIEWFINDER | Pentax K-3 | Pentax K-S1 |
|---|
| Viewfinder Type | Optical - fixed eye-level pentaprism | Optical - fixed eye-level pentaprism |
|---|---|---|
| Optical Viewfinder Field Coverage | 100% | 100% |
| Optical Viewfinder Magnification | 0.95x | 0.95x |
| Optical Viewfinder Dioptric Correction Range | -2.5 to +1.5 | -2.5 to +1.5 |
| Interchangeable Focusing Screens | Yes | - |
| EXPOSURE & WHITE BALANCE | Pentax K-3 | Pentax K-S1 |
|---|
| ISO (Max) | 51200 | 51200 |
|---|---|---|
| Native ISO | 100-51200 | 100-51200 |
| Light Sensitivity | ISO 100-51200, ISO auto (100-51200) | ISO 100-51200, ISO auto (100-51200) |
| Exposure Metering | Multi-segment, centre-weighted, spot | Multi-segment, centre-weighted, spot |
| Exposure Metering Zones | - | 77 |
| Exposure Modes | Programme, bulb, automatic, manual, aperture-priority, shutter-priority, ISO priority, shutter & aperture priority | Programme, automatic, manual, aperture-priority, shutter-priority, shutter & aperture priority |
| 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 | Soft, Slim, Pastel, fisheye, natural, bright, Vibrant, Sketch, monochrome, Muted, landscape, portrait, Water Colour, miniature, Cross Process, Retro, Colour Extract, Toy camera, starburst, High contrast, Colour Invert, Bleach Bypass, Posterisation, Radiant, Reversal Film, Shading, Tone Expansion, Bold Monochrome, Unicolour Bold | 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 (daylight), fluorescent light (warm white), Color Temperature Enhancement (CTE), fluorescent light (daylight white) | 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) |
| Shutter Type | Mechanical electronically-controlled | Mechanical electronically-controlled |
| Max Shutter Speed | 1/8000 sec | 1/6000 sec |
| Min Shutter Speed | 30 sec | 30 sec |
| Exposure Compensation | ±5 EV range, in 1/2 or 1/3 EV steps | ±5 EV range, in 1/2 or 1/3 EV steps |
| Auto Exposure Bracketing | 2, 3 or 5 steps | - |
| White Balance Bracketing | - | Yes |
| X-sync Speed | 1/180 sec | 1/180 sec |
| Exposure Range | EV -3-20 (ISO 100) | EV 0-22 (ISO 100) |
| DISPLAY | Pentax K-3 | Pentax K-S1 |
|---|
| Type | 3.2" LCD display | 3" LCD display |
|---|---|---|
| Display Format | 1,037,000 pixels | 921,000 pixels |
| Display Form Factor | Built-in | Built-in |
| Display Features | Colour control | Colour control, display brightness control |
| FLASH | Pentax K-3 | Pentax K-S1 |
|---|
| Camera Flash | Pop-up flash | Pop-up flash |
|---|---|---|
| Guide Number (m / ISO 100) | 13 | 10 |
| 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, wireless off-camera control | AF illuminator, flash +/- compensation |
| VIDEOGRAPHY / CAMCORDER | Pentax K-3 | Pentax K-S1 |
|---|
| Digital Video Format | AVI, MJPEG, H.264 | H.264 |
|---|---|---|
| Image Recording Format | JPEG, DNG (RAW) + JPEG, DNG (RAW) | JPEG, DNG (RAW) + JPEG, DNG (RAW) |
| Max Video Resolution | 1920 x 1080 | 1920 x 1080 |
| Microphone Operation Mode | Mono | Mono |
| Microphone Features | Sensitivity control | Sensitivity control |
| MEMORY | Pentax K-3 | Pentax K-S1 |
|---|
| Memory Card Slot | Dual SD card | SD card |
|---|---|---|
| Supported Memory Cards | SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card | SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDXC UHS-I Memory Card |
| Image Storage | RAW 6016 x 4000 JPEG 6016 x 4000 JPEG 4608 x 3072 JPEG 3072 x 2048 JPEG 1920 x 1280 |
- |
| Video Capture | H.264 - 1920 x 1080 - 30 fps H.264 - 1920 x 1080 - 25 fps H.264 - 1920 x 1080 - 24 fps H.264 - 1280 x 720 - 60 fps H.264 - 1280 x 720 - 50 fps H.264 - 1280 x 720 - 30 fps H.264 - 1280 x 720 - 25 fps H.264 - 1280 x 720 - 24 fps H.264 - 1920 x 1080 - 60 fps H.264 - 1920 x 1080 - 50 fps |
H.264 - 1920 x 1080 - 30 fps H.264 - 1920 x 1080 - 25 fps H.264 - 1920 x 1080 - 24 fps |
| BATTERY AND CHARGING | Pentax K-3 | Pentax K-S1 |
|---|
| Battery Type | Pentax D-Li90 Lithium Ion | Pentax D-Li109 Lithium Ion |
|---|---|---|
| Details | Pentax D-Li90 Li-ion rechargeable battery (included) | Pentax D-Li109 Li-ion rechargeable battery (included) |
| Battery Life | Photo shooting - 560 shots (50% flash usage) Photo shooting - 720 shots (flash off) Playback - 6.2 hours |
Photo shooting - 480 shots (50% flash usage) Playback - 4.5 hours |
| CONNECTIONS | Pentax K-3 | Pentax K-S1 |
|---|
| Interface | HDMI, USB 3.0 | HDMI |
|---|---|---|
| Print Standard | Exif Print support | DPOF support, Exif Print support |
| Flash Terminal | Hot shoe | Hot shoe |
| Connector Type | USB 2.0 HDMI output Microphone Headphones Remote control |
USB 2.0 HDMI output (19 pin micro HDMI Type D) |
| FEATURES | Pentax K-3 | Pentax K-S1 |
|---|
| Self-Timer Delay | 2sec, 12sec | 2sec, 12sec |
|---|---|---|
| Continuous Shooting Speed | 8.3 frames per second | 3 frames per second, 5.4 frames per second |
| HDR Mode | Auto HDR mode | Auto HDR mode |
| Additional Features | Audio recording, digital image rotation, camera orientation detection, histogram display, AE lock, AF lock, cropping an image, resizing an image, saturation control, GPS ready, interval shooting mode, mirror lock, in-camera RAW processing, peripheral illumination correction, HDR image enhancement technology, Shade Correction, Eye-Fi Card Ready, NR Slow Shutter, High ISO NR, Dynamic Range Compensation, no anti-aliasing filter, Lens Distortion Correction, primary colour filter, Interval Movie Record, Automatic composition correction function, colour moire correction, Lateral Chromatic Aberration Correction, Flucard Ready | 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 |
| OTHERS | Pentax K-3 | Pentax K-S1 |
|---|
| Included Accessories | Battery charger, body cap, shoulder strap, USB cable, eyecup, shoe cap, battery grip terminal cover, sync terminal cover | Battery charger, body cap, shoulder strap, eyecup, shoe cap |
|---|---|---|
| Software | Drivers & Utilities | Drivers & Utilities |
| Max Operating Temperature | 40 °C | 40 °C |
| Min Operating Temperature | -10 °C | -10 °C |
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