Detailed comparison and review of Pentax K-3 and Sigma fp. With our comprehensive overview, you can simply compare design, sensors, proximity characteristics, memory capacities, but also other key features of both cameras and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the camera that best fits your needs and expectations.
| DESIGN AND DIMENSIONS | Pentax K-3 | Sigma fp |
|---|
| Product Type | Digital camera - SLR with movie recording | Digital camera - 4K - mirrorless system |
|---|---|---|
| Lens Included | Body only | Body only |
| Height | 10 cm | 6.99 cm |
| Width | 13.15 cm | 11.26 cm |
| Depth | 7.75 cm | 4.53 cm |
| Weight | 715 g | 370 g |
| Weight Details | - | Camera body only: 370 g Camera with battery and memory card: 422 g |
| Body Material | Magnesium alloy | Aluminium |
| Enclosure Colour | Black | - |
| Protection | Weatherproof, freezeproof, dust-resistant | Splashproof, dust-resistant |
| SENSOR | Pentax K-3 | Sigma fp |
|---|
| Sensor Resolution | 23.35 Megapixel | 24.6 Megapixel |
|---|---|---|
| Optical Sensor Type | CMOS | BSI-CMOS |
| Total Pixels | 24,710,000 pixels | 25,300,000 pixels |
| Effective Sensor Resolution | 23,350,000 pixels | 24,600,000 pixels |
| Optical Sensor Size | APS-C (23.5 x 15.6 mm) | Full Frame (35.9 x 23.1 mm) |
| Frame Rate (Max Resolution) | - | 30 fps |
| Sensor Features | Dust Reduction (image sensor vibration), anti-aliasing simulator function | - |
| Image Stabiliser | Optical (image sensor shift mechanism) | Electronic |
| Built-in Optical Image Stabiliser | Yes | - |
| Sensors | Dust alert sensor, digital level metre | - |
| PROCESSOR | Pentax K-3 | Sigma fp |
|---|
| Image Processor | PRIME III | - |
|---|
| LENS | Pentax K-3 | Sigma fp |
|---|
| Lens Mounting Type | Pentax K | L-Mount |
|---|
| FOCUSING | Pentax K-3 | Sigma fp |
|---|
| Auto Focus | TTL phase detection | TTL contrast detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | 27 | 49 |
| Auto Focus Features | - | Focus Peaking function, Predictive Focus Control |
| AE/AF Control | - | Face-priority AF, Subject-tracking AF, Eye detection AF, Predictive AI Servo AF |
| Face Detection | Yes | Face-priority AF function |
| VIEWFINDER | Pentax K-3 | Sigma fp |
|---|
| Viewfinder Type | Optical - fixed eye-level pentaprism | - |
|---|---|---|
| Optical Viewfinder Field Coverage | 100% | - |
| Optical Viewfinder Magnification | 0.95x | - |
| Optical Viewfinder Dioptric Correction Range | -2.5 to +1.5 | - |
| Interchangeable Focusing Screens | Yes | - |
| EXPOSURE & WHITE BALANCE | Pentax K-3 | Sigma fp |
|---|
| ISO (Max) | 51200 | 102400 |
|---|---|---|
| Native ISO | 100-51200 | 100-25600 |
| Extended ISO (Max) | - | 102400 |
| Extended ISO (Min) | - | 6 |
| Light Sensitivity | ISO 100-51200, ISO auto (100-51200) | ISO 50, ISO 102400, ISO 51200, ISO 100-25600, ISO 6, ISO 12, ISO 25 |
| Exposure Metering | Multi-segment, centre-weighted, spot | Evaluative, centre-weighted, spot |
| Exposure Modes | Programme, bulb, automatic, manual, aperture-priority, shutter-priority, ISO priority, shutter & aperture priority | Programme, manual, aperture-priority, shutter-priority |
| 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 | Cinema, Neutral, Vivid, monochrome, landscape, portrait, Sunset Red, Forest Green, FOV Classic Blue, FOV Classic Yellow, Standard, Teal & Orange |
| 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) | Incandescent, fluorescent, Flash, daylight, shade, overcast |
| Shutter Type | Mechanical electronically-controlled | Electronic |
| Max Shutter Speed | 1/8000 sec | 1/8000 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 |
| Auto Exposure Bracketing | 2, 3 or 5 steps | 3, 5 steps in 1/3 EV step |
| X-sync Speed | 1/180 sec | - |
| Exposure Range | EV -3-20 (ISO 100) | EV -5-18 (ISO 100) |
| DISPLAY | Pentax K-3 | Sigma fp |
|---|
| Type | 3.2" LCD display | 3.15" LCD display |
|---|---|---|
| Touch Screen | - | Yes |
| Display Format | 1,037,000 pixels | 2,100,000 pixels |
| Display Form Factor | Built-in | Built-in |
| Display Features | Colour control | - |
| FLASH | Pentax K-3 | Sigma fp |
|---|
| Camera Flash | Pop-up flash | - |
|---|---|---|
| Guide Number (m / ISO 100) | 13 | - |
| 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, wireless off-camera control | - |
| VIDEOGRAPHY / CAMCORDER | Pentax K-3 | Sigma fp |
|---|
| Digital Video Format | AVI, MJPEG, H.264 | H.264, MOV, CinemaDNG |
|---|---|---|
| Image Recording Format | JPEG, DNG (RAW) + JPEG, DNG (RAW) | JPEG, RAW, RAW + JPEG |
| Max Video Resolution | 1920 x 1080 | 3840 x 2160 |
| Audio Signal Format | - | Linear PCM |
| Microphone Operation Mode | Mono | Stereo |
| Microphone Features | Sensitivity control | - |
| MEMORY | Pentax K-3 | Sigma fp |
|---|
| 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 |
| Memory Card Included | - | No |
| Image Storage | RAW 6016 x 4000 JPEG 6016 x 4000 JPEG 4608 x 3072 JPEG 3072 x 2048 JPEG 1920 x 1280 |
RAW 6000 x 4000 RAW 3840 x 2560 - 1.5x crop RAW 3008 x 2000 RAW 1920 x 1080 - 1.5x crop |
| 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 |
3840 x 2160 p - 29.97 fps 3840 x 2160 p - 25 fps 3840 x 2160 p - 23.98 fps 1920 x 1080 p - 119.88 fps 1920 x 1080 p - 100 fps 1920 x 1080 p - 59.94 fps 1920 x 1080 p - 50 fps 1920 x 1080 p - 29.97 fps 1920 x 1080 p - 25 fps 1920 x 1080 p - 23.98 fps |
| BATTERY AND CHARGING | Pentax K-3 | Sigma fp |
|---|
| Battery Type | Pentax D-Li90 Lithium Ion | Sigma BP-51 Lithium Ion |
|---|---|---|
| Details | Pentax D-Li90 Li-ion rechargeable battery (included) | Sigma BP-51 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 - 280 shots Video recording - 70 minutes |
| CONNECTIONS | Pentax K-3 | Sigma fp |
|---|
| Interface | HDMI, USB 3.0 | HDMI, USB 3.1 |
|---|---|---|
| Print Standard | Exif Print support | - |
| Tripod Mount Connection Point | - | 3 x 1/4" sockets |
| Flash Terminal | Hot shoe | Hot shoe |
| Connector Type | USB 2.0 HDMI output Microphone Headphones Remote control |
USB 3.2 Gen 1 (USB Type-C) HDMI output (19 pin micro HDMI Type D) Microphone / remote control (mini-phone stereo 3.5 mm) |
| FEATURES | Pentax K-3 | Sigma fp |
|---|
| Self-Timer Delay | 2sec, 12sec | 10 sec, 2sec |
|---|---|---|
| Continuous Shooting Speed | 8.3 frames per second | 3 frames per second, 5 frames per second, 18 frames per second |
| HDR Mode | Auto HDR mode | Multi Frame 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 | Built-in speaker, AE lock, AF lock, USB charging, Bayer mosaic RGB filter, no Optical Low Pass Filter (OLFP) |
| OTHERS | Pentax K-3 | Sigma fp |
|---|
| Included Accessories | Battery charger, body cap, shoulder strap, USB cable, eyecup, shoe cap, battery grip terminal cover, sync terminal cover | Carrying strap, body cap, AC power adaptor, USB cable, strap holder, hot shoe unit |
|---|---|---|
| Software | Drivers & Utilities | - |
| Max Operating Temperature | 40 °C | 40 °C |
| Min Operating Temperature | -10 °C | 0 °C |
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