In depth comparison and review of Pentax K-S1 and Fujifilm GFX 50S. 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 | Fujifilm GFX 50S |
|---|
| Product Type | Digital camera - 1080p - SLR with Live View mode, movie recording | Digital camera - 1080p - mirrorless system with movie recording |
|---|---|---|
| Lens Included | Body only | Body only |
| Height | 9.3 cm | 9.42 cm |
| Width | 12 cm | 14.75 cm |
| Depth | 7 cm | 9.14 cm |
| Weight | 485 g | 740 g |
| Weight Details | - | Camera body only: 740 g Camera with battery and memory card: 825 g Camera with EVF: 920 g |
| Enclosure Colour | White | Black | Black |
| Protection | - | Weatherproof |
| SENSOR | Pentax K-S1 | Fujifilm GFX 50S |
|---|
| Sensor Resolution | 20.12 Megapixel | 51.4 Megapixel |
|---|---|---|
| Optical Sensor Type | CMOS | CMOS |
| Total Pixels | 20,420,000 pixels | - |
| Effective Sensor Resolution | 20,120,000 pixels | 51,400,000 pixels |
| Optical Sensor Size | APS-C (23.5 x 15.6 mm) | Medium Format (43.8 x 32.9 mm) |
| Frame Rate (Max Resolution) | - | 30 fps |
| Sensor Dust Reduction | Yes | Yes |
| Sensor Features | Special Protect (SP) coating | Ultrasonic vibration |
| Sensors | - | Digital level metre |
| PROCESSOR | Pentax K-S1 | Fujifilm GFX 50S |
|---|
| Image Processor | PRIME MII | X-Processor Pro engine |
|---|
| LENS | Pentax K-S1 | Fujifilm GFX 50S |
|---|
| Lens Mounting Type | Pentax KAF2 | Fujifilm G Mount |
|---|
| FOCUSING | Pentax K-S1 | Fujifilm GFX 50S |
|---|
| Auto Focus | TTL phase detection | TTL contrast detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | 11 | - |
| Auto Focus Features | - | Focus Peaking function |
| AE/AF Control | Face-priority AF, Subject-tracking AF | - |
| Face Detection | Yes | Eye Detect AF, face-priority AF function |
| VIEWFINDER | Pentax K-S1 | Fujifilm GFX 50S |
|---|
| Viewfinder Type | Optical - fixed eye-level pentaprism | Electronic - OLED |
|---|---|---|
| Viewfinder Colour Support | - | Colour |
| Viewfinder Diagonal Size | - | 0.5" |
| Viewfinder Resolution | - | 3,690,000 pixels |
| Optical Viewfinder Field Coverage | 100% | 100% |
| Optical Viewfinder Magnification | 0.95x | 0.85x |
| Optical Viewfinder Dioptric Correction Range | -2.5 to +1.5 | -4 to +2 |
| Features | - | Viewfinder brightness control, auto eye sensor |
| EXPOSURE & WHITE BALANCE | Pentax K-S1 | Fujifilm GFX 50S |
|---|
| ISO (Max) | 51200 | 102400 |
|---|---|---|
| Native ISO | 100-51200 | 100-12800 |
| Extended ISO (Max) | - | 25600 (H1), 51200 (H2), 102400 (H3) |
| Extended ISO (Min) | - | 50 |
| Light Sensitivity | ISO 100-51200, ISO auto (100-51200) | ISO 50, ISO auto, ISO 102400, ISO 51200, ISO 25600, ISO 100-12800 |
| Exposure Metering | Multi-segment, centre-weighted, spot | Multi-segment, centre-weighted, spot, average |
| Exposure Metering Zones | 77 | 256 |
| Exposure Modes | Programme, automatic, manual, aperture-priority, shutter-priority, shutter & aperture priority | Automatic, manual, aperture-priority, shutter-priority |
| Bracketing Modes | - | Dynamic Range Bracketing, Film Simulation Bracketing, ISO sensitivity 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 | Chrome, Film Simulation, Grainy Film |
| 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) | Incandescent, fluorescent, daylight, shade, fluorescent light (cool white), fluorescent light (warm white), Underwater |
| Shutter Type | Mechanical electronically-controlled | Mechanical |
| Max Shutter Speed | 1/6000 sec | 1/16000 sec |
| Min Shutter Speed | 30 sec | 4 sec |
| Exposure Compensation | ±5 EV range, in 1/2 or 1/3 EV steps | ±5 EV range, in 1/3 EV steps |
| Auto Exposure Bracketing | - | 9 steps in 1/3 EV steps |
| White Balance Bracketing | Yes | Yes |
| X-sync Speed | 1/180 sec | 1/125sec |
| Exposure Range | EV 0-22 (ISO 100) | - |
| DISPLAY | Pentax K-S1 | Fujifilm GFX 50S |
|---|
| Type | 3" LCD display | 3.2" LCD display |
|---|---|---|
| Touch Screen | - | Yes |
| Display Format | 921,000 pixels | 2,360,000 pixels |
| Display Form Factor | Built-in | Folding |
| Display Features | Colour control, display brightness control | Display brightness control, display colour control |
| FLASH | Pentax K-S1 | Fujifilm GFX 50S |
|---|
| 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 | Fujifilm GFX 50S |
|---|
| Digital Video Format | H.264 | H.264 |
|---|---|---|
| Image Recording Format | JPEG, DNG (RAW) + JPEG, DNG (RAW) | JPEG, RAW, RAW + JPEG |
| Max Video Resolution | 1920 x 1080 | 1920 x 1080 |
| Microphone Operation Mode | Mono | - |
| Microphone Features | Sensitivity control | - |
| MEMORY | Pentax K-S1 | Fujifilm GFX 50S |
|---|
| 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, SDHC UHS-II Memory Card, SDXC UHS-II Memory Card |
| Memory Card Included | - | No |
| Memory Card Max Supported Size | - | 256 GB |
| Image Storage | - | 8256 x 6192 8256 x 5504 8256 x 4640 6192 x 6192 8256 x 3048 7744 x 6192 7232 x 6192 4000 x 3000 4000 x 2664 4000 x 2248 2992 x 2992 4000 x 1480 3744 x 3000 3504 x 3000 |
| Video Capture | H.264 - 1920 x 1080 - 30 fps H.264 - 1920 x 1080 - 25 fps H.264 - 1920 x 1080 - 24 fps |
1920 x 1080 p - 29.97 fps 1920 x 1080 p - 25 fps 1920 x 1080 p - 24 fps 1920 x 1080 p - 23.98 fps 1280 x 720 p - 29.97 fps 1280 x 720 p - 25 fps 1280 x 720 p - 24 fps 1280 x 720 p - 23.98 fps |
| BATTERY AND CHARGING | Pentax K-S1 | Fujifilm GFX 50S |
|---|
| Battery Type | Pentax D-Li109 Lithium Ion | Fujifilm NP-T125 Lithium Ion |
|---|---|---|
| Details | Pentax D-Li109 Li-ion rechargeable battery (included) | Fujifilm NP-T125 Li-ion rechargeable battery (included) |
| Battery Life | Photo shooting - 480 shots (50% flash usage) Playback - 4.5 hours |
Photo shooting - 400 shots Video recording - 2.42 hours |
| CONNECTIONS | Pentax K-S1 | Fujifilm GFX 50S |
|---|
| Interface | HDMI | HDMI, USB 3.0, IEEE 802.11b/g/n |
|---|---|---|
| Connectivity Features | - | Remote control via mobile devices, Wireless Image Transfer |
| Print Standard | DPOF support, Exif Print 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 HDMI output (19 pin micro HDMI Type D) Microphone (mini-phone stereo 3.5 mm) Headphones (mini-phone stereo 3.5 mm) Remote control (sub-mini phone 2.5 mm) DC power input |
| FEATURES | Pentax K-S1 | Fujifilm GFX 50S |
|---|
| Self-Timer Delay | 2sec, 12sec | 10 sec, 2sec |
|---|---|---|
| Continuous Shooting Speed | 3 frames per second, 5.4 frames per second | 3 frames per second, 1.8 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 | Auto power save, date/time stamp, depth-of-field preview button, sharpness control, digital image rotation, histogram display, colour control, in-camera red-eye removal, resizing an image, highlight tone priority, interval shooting mode, highlight point display, Automatic Pixel Mapping (APM), Dynamic Range Adjustment, Bayer mosaic RGB filter, noise reduction over long exposures, Lens Modulation Optimizer (LMO), noise reduction, multiple exposure capture, shadow tone priority |
| OTHERS | Pentax K-S1 | Fujifilm GFX 50S |
|---|
| Included Accessories | Battery charger, body cap, shoulder strap, eyecup, shoe cap | Battery charger, body cap, shoulder strap, viewfinder, power plug adapter, strap clip, cable protector, strap clip lock |
|---|---|---|
| Software | Drivers & Utilities | - |
| Max Operating Temperature | 40 °C | 40 °C |
| Min Operating Temperature | -10 °C | -10 °C |
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