Detailed comparison and review of Pentax K-3 and Canon EOS R. 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 | Canon EOS R |
|---|
| Product Type | Digital camera - SLR with movie recording | Digital camera - 4K - mirrorless system with Live View mode, movie recording |
|---|---|---|
| Lens Included | Body only | Body only |
| Height | 10 cm | 9.83 cm |
| Width | 13.15 cm | 13.58 cm |
| Depth | 7.75 cm | 8.44 cm |
| Weight | 715 g | 580 g |
| Weight Details | - | Camera body only: 580 g Camera with battery and memory card: 660 g |
| Body Material | Magnesium alloy | Magnesium alloy |
| Enclosure Colour | Black | - |
| Protection | Weatherproof, freezeproof, dust-resistant | Waterproof, dust-resistant |
| SENSOR | Pentax K-3 | Canon EOS R |
|---|
| Sensor Resolution | 23.35 Megapixel | 30.3 Megapixel |
|---|---|---|
| Optical Sensor Type | CMOS | CMOS |
| Total Pixels | 24,710,000 pixels | 31,700,000 pixels |
| Effective Sensor Resolution | 23,350,000 pixels | 30,300,000 pixels |
| Optical Sensor Size | APS-C (23.5 x 15.6 mm) | Full Frame (36 x 24 mm) |
| Frame Rate (Max Resolution) | - | 30 fps |
| Sensor Dust Reduction | - | Yes |
| Sensor Features | Dust Reduction (image sensor vibration), anti-aliasing simulator function | EOS Integrated Cleaning System |
| Image Stabiliser | Optical (image sensor shift mechanism) | - |
| Built-in Optical Image Stabiliser | Yes | - |
| Sensors | Dust alert sensor, digital level metre | - |
| PROCESSOR | Pentax K-3 | Canon EOS R |
|---|
| Image Processor | PRIME III | DIGIC 8 |
|---|
| LENS | Pentax K-3 | Canon EOS R |
|---|
| Lens Mounting Type | Pentax K | Canon RF |
|---|
| FOCUSING | Pentax K-3 | Canon EOS R |
|---|
| Auto Focus | TTL phase detection | Dual Pixel CMOS AF |
|---|---|---|
| Auto Focus Points (Zones) Qty | 27 | 5655 |
| Auto Focus Features | - | Focus Peaking function |
| AE/AF Control | - | Face-priority AF, Subject-tracking AF, Eye detection AF, Zone AF, Touch and Drag AF |
| Face Detection | Yes | Face Detection AF/AE |
| VIEWFINDER | Pentax K-3 | Canon EOS R |
|---|
| Viewfinder Type | Optical - fixed eye-level pentaprism | Electronic - OLED |
|---|---|---|
| Viewfinder Diagonal Size | - | 0.5" |
| Viewfinder Resolution | - | 3,690,000 pixels |
| Optical Viewfinder Field Coverage | 100% | 100% |
| Optical Viewfinder Magnification | 0.95x | 0.76x |
| Optical Viewfinder Dioptric Correction Range | -2.5 to +1.5 | -4 to +2 |
| Field of View Crop Factor | - | 1.0 |
| Interchangeable Focusing Screens | Yes | - |
| Features | - | Viewfinder brightness control |
| EXPOSURE & WHITE BALANCE | Pentax K-3 | Canon EOS R |
|---|
| ISO (Max) | 51200 | 102400 |
|---|---|---|
| Native ISO | 100-51200 | 100-40000 |
| Extended ISO (Max) | - | 51200 (H1), 102400 (H2) |
| Extended ISO (Min) | - | 50 |
| Light Sensitivity | ISO 100-51200, ISO auto (100-51200) | ISO 50, ISO 102400, ISO 51200, ISO 100-40000 |
| Exposure Metering | Multi-segment, centre-weighted, spot | Evaluative, centre-weighted, partial (6.1%), spot (2.7%) |
| Exposure Metering Zones | - | 384 |
| Exposure Modes | Programme, bulb, automatic, manual, aperture-priority, shutter-priority, ISO priority, shutter & aperture priority | Programme, bulb, automatic, manual, aperture-priority, shutter-priority, E-TTL II program flash |
| 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 | Neutral, Custom Effect, Faithful, monochrome, landscape, portrait, Standard, Fine Detail |
| 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 (white) |
| Shutter Type | Mechanical electronically-controlled | Mechanical electronically-controlled |
| 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 | ±3 EV range, in 1/2 or 1/3 EV steps |
| Auto Exposure Bracketing | 2, 3 or 5 steps | 3 steps in 1/2 or 1/3 EV steps |
| White Balance Bracketing | - | Yes |
| X-sync Speed | 1/180 sec | 1/200sec |
| Exposure Range | EV -3-20 (ISO 100) | EV -3-20 (ISO 100) |
| DISPLAY | Pentax K-3 | Canon EOS R |
|---|
| 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 | Rotating |
| Display Features | Colour control | Display brightness control, display colour control, anti-smudge coating |
| FLASH | Pentax K-3 | Canon EOS R |
|---|
| 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 | Canon EOS R |
|---|
| Digital Video Format | AVI, MJPEG, H.264 | H.264 |
|---|---|---|
| Image Recording Format | JPEG, DNG (RAW) + JPEG, DNG (RAW) | JPEG, RAW, RAW + JPEG, C-RAW |
| 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 | Canon EOS R |
|---|
| 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, SDHC UHS-II Memory Card, SDXC UHS-II 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 6720 x 4480 RAW 4176 x 2784 RAW 5952 x 4480 RAW 6720 x 4480 RAW 4480 x 4480 JPEG 4464 x 2976 JPEG 3968 x 2976 JPEG 4464 x 2512 JPEG 2976 x 2976 JPEG 3360 x 2240 JPEG 2400 x 1600 JPEG 2976 x 2240 JPEG 3360 x 1888 JPEG 2240 x 2240 JPEG 2400 x 1600 JPEG 2112 x 1600 JPEG 2400 x 1344 JPEG 1600 x 1600 |
| 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 - 3840 x 2160 p - 29.97 fps H.264 - 3840 x 2160 p - 24 fps H.264 - 3840 x 2160 p - 23.98 fps H.264 - 1920 x 1080 p - 59.94 fps H.264 - 1920 x 1080 p - 29.97 fps H.264 - 1920 x 1080 p - 24 fps H.264 - 1920 x 1080 p - 23.98 fps H.264 - 1280 x 720 p - 119.9 fps H.264 - 1280 x 720 p - 59.94 fps H.264 - 1280 x 720 p - 29.97 fps |
| BATTERY AND CHARGING | Pentax K-3 | Canon EOS R |
|---|
| Battery Type | Pentax D-Li90 Lithium Ion | Canon LP-E6N Lithium Ion |
|---|---|---|
| Details | Pentax D-Li90 Li-ion rechargeable battery (included) | Canon LP-E6N 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 - 370 shots (at 23 °C (Live View mode)) Photo shooting - 350 shots (at 0 °C (Live View mode)) Photo shooting - 350 shots (at 0 °C (LCD Monitor off)) Photo shooting - 330 shots (at 0 °C (LCD Monitor off)) |
| CONNECTIONS | Pentax K-3 | Canon EOS R |
|---|
| Interface | HDMI, USB 3.0 | HDMI, USB 3.1, IEEE 802.11b/g/n, Bluetooth 4.1 |
|---|---|---|
| Connectivity Features | - | Remote control via mobile devices, remote live view, Wireless Image Transfer, wireless image printing |
| Print Standard | Exif Print support | DPOF support, Exif Print support, PictBridge support |
| Computer Connectivity | - | Mac, Windows |
| Flash Terminal | Hot shoe | Hot shoe |
| Connector Type | USB 2.0 HDMI output Microphone Headphones Remote control |
USB 3.1 (USB Type-C) HDMI output (19 pin mini HDMI Type C) Audio line-in / microphone (mini-phone stereo 3.5 mm) Headphones (mini-phone stereo 3.5 mm) Remote control |
| FEATURES | Pentax K-3 | Canon EOS R |
|---|
| Self-Timer Delay | 2sec, 12sec | 10 sec, 2sec |
|---|---|---|
| Continuous Shooting Speed | 8.3 frames per second | 8 frames per second, 3 frames per second, 5 frames per second, 2.2 frames per second |
| 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, auto power save, camera orientation detection, histogram display, AE lock, AF lock, cropping an image, resizing an image, highlight tone priority, Dust Delete Data system, USB charging, Auto Lighting Optimizer, in-camera RAW processing, peripheral illumination correction, Time-Lapse recording, Canon Log Gamma mode, high ISO speed noise reduction, silent shooting, Dual Pixel CMOS AF technology, diffraction correction, Flicker detection, Digital Lens Optimizer |
| OTHERS | Pentax K-3 | Canon EOS R |
|---|
| Included Accessories | Battery charger, body cap, shoulder strap, USB cable, eyecup, shoe cap, battery grip terminal cover, sync terminal cover | Battery charger, body cap, neck strap, USB cable, cable protector |
|---|---|---|
| Software | Drivers & Utilities | Canon Digital Photo Professional |
| Max Operating Temperature | 40 °C | 40 °C |
| Min Operating Temperature | -10 °C | 0 °C |
| Service & Support | - | Limited warranty - parts and labour - 1 year |
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