In depth comparison and review of Pentax K-S1 and Sigma SD Quattro + 30mm F1.4 DC HSM | Art. 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 | Sigma SD Quattro + 30mm F1.4 DC HSM | Art |
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| Product Type | Digital camera - 1080p - SLR with Live View mode, movie recording | Digital camera - mirrorless system |
|---|---|---|
| Lens Included | Body only | 30mm F1.4 DC HSM | Art lens |
| Height | 9.3 cm | 9.51 cm |
| Width | 12 cm | 14.7 cm |
| Depth | 7 cm | 9.08 cm |
| Weight | 485 g | 625 g |
| Body Material | - | Magnesium alloy |
| Enclosure Colour | White | Black | - |
| Protection | - | Splashproof, dust-resistant |
| SENSOR | Pentax K-S1 | Sigma SD Quattro + 30mm F1.4 DC HSM | Art |
|---|
| Sensor Resolution | 20.12 Megapixel | 29.5 Megapixel |
|---|---|---|
| Optical Sensor Type | CMOS | X3 CMOS |
| Total Pixels | 20,420,000 pixels | 33,200,000 pixels |
| Effective Sensor Resolution | 20,120,000 pixels | 29,500,000 pixels |
| Optical Sensor Size | APS-C (23.5 x 15.6 mm) | APS-C (23.4 x 15.5 mm) |
| Sensor Dust Reduction | Yes | - |
| Sensor Features | Special Protect (SP) coating | - |
| PROCESSOR | Pentax K-S1 | Sigma SD Quattro + 30mm F1.4 DC HSM | Art |
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| Image Processor | PRIME MII | - |
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| LENS | Pentax K-S1 | Sigma SD Quattro + 30mm F1.4 DC HSM | Art |
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| Type | - | 30 f/1.4 DC HSM | Art |
|---|---|---|
| Focal Length Equivalent to 35mm Camera | - | 45mm |
| Focus Adjustment | - | Automatic, manual |
| Min Focus Distance | - | 30 cm |
| Max View Angle | - | 50.7 degree(s) |
| Lens Construction | - | 8 groups / 9 elements |
| Filter Size | - | 62 mm |
| Lens Mounting Type | Pentax KAF2 | Sigma SA |
| Features | - | Full-time manual focusing, rear focusing system, Hyper Sonic Motor (HSM), aspherical lens, Sigma USB dock compatible |
| FOCUSING | Pentax K-S1 | Sigma SD Quattro + 30mm F1.4 DC HSM | Art |
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| Auto Focus | TTL phase detection | TTL contrast and phase detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | 11 | 9 |
| AE/AF Control | Face-priority AF, Subject-tracking AF | - |
| Face Detection | Yes | Face-priority AF function |
| VIEWFINDER | Pentax K-S1 | Sigma SD Quattro + 30mm F1.4 DC HSM | Art |
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| Viewfinder Type | Optical - fixed eye-level pentaprism | Electronic - LCD |
|---|---|---|
| Viewfinder Colour Support | - | Colour |
| Viewfinder Resolution | - | 2,360,000 pixels |
| Optical Viewfinder Field Coverage | 100% | 100% |
| Optical Viewfinder Magnification | 0.95x | 1.1x |
| Optical Viewfinder Dioptric Correction Range | -2.5 to +1.5 | -4 to +2 |
| Field of View Crop Factor | - | 1.5 |
| EXPOSURE & WHITE BALANCE | Pentax K-S1 | Sigma SD Quattro + 30mm F1.4 DC HSM | Art |
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| ISO (Max) | 51200 | - |
|---|---|---|
| Native ISO | 100-51200 | 100-6400 |
| Light Sensitivity | ISO 100-51200, ISO auto (100-51200) | - |
| Exposure Metering | Multi-segment, centre-weighted, spot | Evaluative, centre-weighted, spot |
| Exposure Metering Zones | 77 | - |
| Exposure Modes | Programme, automatic, manual, aperture-priority, shutter-priority, shutter & aperture priority | Programme, automatic, manual, aperture-priority, shutter-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 | 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) | - |
| Shutter Type | Mechanical electronically-controlled | Mechanical electronically-controlled |
| Max Shutter Speed | 1/6000 sec | 1/4000 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 1/3 EV steps |
| White Balance Bracketing | Yes | - |
| X-sync Speed | 1/180 sec | 1/180 sec |
| Exposure Range | EV 0-22 (ISO 100) | EV 0-17 (ISO 100) |
| DISPLAY | Pentax K-S1 | Sigma SD Quattro + 30mm F1.4 DC HSM | Art |
|---|
| Type | 3" LCD display | 3" LCD display |
|---|---|---|
| Display Format | 921,000 pixels | 1,620,000 pixels |
| Display Form Factor | Built-in | Built-in |
| Display Features | Colour control, display brightness control | - |
| FLASH | Pentax K-S1 | Sigma SD Quattro + 30mm F1.4 DC HSM | Art |
|---|
| Camera Flash | Pop-up flash | - |
|---|---|---|
| Guide Number (m / ISO 100) | 10 | - |
| Flash Modes | Fill-in mode, rear curtain sync, slow synchro, auto mode, flash OFF mode, red-eye reduction | - |
| Red-Eye Reduction | Yes | - |
| Features | AF illuminator, flash +/- compensation | - |
| VIDEOGRAPHY / CAMCORDER | Pentax K-S1 | Sigma SD Quattro + 30mm F1.4 DC HSM | Art |
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| Digital Video Format | H.264 | - |
|---|---|---|
| Image Recording Format | JPEG, DNG (RAW) + JPEG, DNG (RAW) | JPEG, RAW |
| Max Video Resolution | 1920 x 1080 | - |
| Microphone Operation Mode | Mono | - |
| Microphone Features | Sensitivity control | - |
| MEMORY | Pentax K-S1 | Sigma SD Quattro + 30mm F1.4 DC HSM | Art |
|---|
| 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 |
| Memory Card Included | - | No |
| Image Storage | - | 5440 x 3616 2720 x 1808 |
| Video Capture | H.264 - 1920 x 1080 - 30 fps H.264 - 1920 x 1080 - 25 fps H.264 - 1920 x 1080 - 24 fps |
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| BATTERY AND CHARGING | Pentax K-S1 | Sigma SD Quattro + 30mm F1.4 DC HSM | Art |
|---|
| Battery Type | Pentax D-Li109 Lithium Ion | Sigma BP-61 Lithium Ion |
|---|---|---|
| Details | Pentax D-Li109 Li-ion rechargeable battery (included) | Li-ion rechargeable battery (included) |
| Battery Life | Photo shooting - 480 shots (50% flash usage) Playback - 4.5 hours |
- |
| CONNECTIONS | Pentax K-S1 | Sigma SD Quattro + 30mm F1.4 DC HSM | Art |
|---|
| Interface | HDMI | HDMI, USB 3.0 |
|---|---|---|
| Print Standard | DPOF support, Exif Print support | - |
| Flash Terminal | Hot shoe | Hot shoe |
| Connector Type | USB 2.0 HDMI output (19 pin micro HDMI Type D) |
USB 3.0 (9 pin USB Type B) HDMI output (19 pin mini HDMI Type C) Remote control input |
| FEATURES | Pentax K-S1 | Sigma SD Quattro + 30mm F1.4 DC HSM | Art |
|---|
| Self-Timer Delay | 2sec, 12sec | 10 sec, 2sec |
|---|---|---|
| Continuous Shooting Speed | 3 frames per second, 5.4 frames per second | - |
| 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 | - |
| OTHERS | Pentax K-S1 | Sigma SD Quattro + 30mm F1.4 DC HSM | Art |
|---|
| Included Accessories | Battery charger, body cap, shoulder strap, eyecup, shoe cap | Carrying strap, battery charger, dust cap, body cap, lens cap, USB cable |
|---|---|---|
| Software | Drivers & Utilities | - |
| Max Operating Temperature | 40 °C | 40 °C |
| Min Operating Temperature | -10 °C | 0 °C |
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