In depth comparison and review of Pentax 645Z and Canon EOS Ra. 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 645Z | Canon EOS Ra |
|---|
| Product Type | Digital camera - 1080p - SLR with Live View mode, movie recording | Digital camera - 4K - mirrorless system with Live View mode, movie recording |
|---|---|---|
| Lens Included | Body only | Body only |
| Height | 11.7 cm | 9.83 cm |
| Width | 15.6 cm | 13.58 cm |
| Depth | 12.3 cm | 8.44 cm |
| Weight | 1.47 kg | 580 g |
| Weight Details | Camera body only: 1.47 kg Camera with battery and memory card: 1.55 kg |
Camera body only: 580 g Camera with battery and memory card: 660 g |
| Body Material | - | Magnesium alloy |
| Protection | Dust-resistant, water-resistant | Waterproof, dust-resistant |
| SENSOR | Pentax 645Z | Canon EOS Ra |
|---|
| Sensor Resolution | 51.4 Megapixel | 30.3 Megapixel |
|---|---|---|
| Optical Sensor Type | CMOS | CMOS |
| Total Pixels | 52,990,000 pixels | 31,700,000 pixels |
| Effective Sensor Resolution | 51,400,000 pixels | 30,300,000 pixels |
| Optical Sensor Size | - | Full Frame (36 x 24 mm) |
| Frame Rate (Max Resolution) | 30 fps | 30 fps |
| Sensor Dust Reduction | Yes | Yes |
| Sensor Features | Dust Reduction (image sensor vibration) | EOS Integrated Cleaning System |
| PROCESSOR | Pentax 645Z | Canon EOS Ra |
|---|
| Image Processor | - | DIGIC 8 |
|---|
| LENS | Pentax 645Z | Canon EOS Ra |
|---|
| Lens Mounting Type | Pentax 645AF | Canon RF |
|---|
| FOCUSING | Pentax 645Z | Canon EOS Ra |
|---|
| Auto Focus | TTL contrast and 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 | - | Face Detection AF/AE |
| VIEWFINDER | Pentax 645Z | Canon EOS Ra |
|---|
| Viewfinder Type | Optical - trapezoid prism | Electronic - OLED |
|---|---|---|
| Viewfinder Diagonal Size | - | 0.5" |
| Viewfinder Resolution | - | 3,690,000 pixels |
| Optical Viewfinder Field Coverage | 98% | 100% |
| Optical Viewfinder Magnification | 0.62x | 0.76x |
| Optical Viewfinder Dioptric Correction Range | -3.5 to +2 | -4 to +2 |
| Field of View Crop Factor | 1.3 | 1.0 |
| Features | - | Viewfinder brightness control |
| EXPOSURE & WHITE BALANCE | Pentax 645Z | Canon EOS Ra |
|---|
| ISO (Max) | 204800 | 102400 |
|---|---|---|
| Native ISO | 100-204800 | 100-40000 |
| Extended ISO (Max) | - | 51200 (H1), 102400 (H2) |
| Extended ISO (Min) | - | 50 |
| Light Sensitivity | ISO auto (100-204800), ISO 100-248000 | 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, 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 | Natural, bright, Vibrant, monochrome, Muted, landscape, portrait, Cross Process, Bleach Bypass, Radiant, Reversal Film | Neutral, Custom Effect, Faithful, monochrome, landscape, portrait, Standard, Fine Detail |
| White Balance | Custom, automatic, presets | Custom, automatic, presets |
| White Balance Presets | Tungsten light, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (warm white), fluorescent light (daylight colour), fluorescent light (daylight white) | Cloudy, tungsten light, Flash, daylight, shade, fluorescent light (white) |
| Shutter Type | Electronic | Mechanical electronically-controlled |
| Max Shutter Speed | 1/4000 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 | - | 3 steps in 1/2 or 1/3 EV steps |
| White Balance Bracketing | - | Yes |
| X-sync Speed | 1/125sec | 1/200sec |
| Exposure Range | EV -1-21 (ISO 200) | EV -3-20 (ISO 100) |
| DISPLAY | Pentax 645Z | Canon EOS Ra |
|---|
| 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 | Folding | Rotating |
| Display Features | Display brightness control, display colour control | Display brightness control, display colour control, anti-smudge coating |
| VIDEOGRAPHY / CAMCORDER | Pentax 645Z | Canon EOS Ra |
|---|
| Digital Video Format | MJPEG, H.264 | H.264 |
|---|---|---|
| Image Recording Format | JPEG, RAW, RAW + JPEG | JPEG, RAW, RAW + JPEG, C-RAW |
| Max Video Resolution | 1920 x 1080 | 3840 x 2160 |
| Audio Signal Format | - | Linear PCM |
| Microphone Operation Mode | - | Stereo |
| MEMORY | Pentax 645Z | Canon EOS Ra |
|---|
| 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 | No |
| Image Storage | - | 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 - 3840 x 2160 p - 29.97 fps H.264 - 3840 x 2160 p - 25 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 - 50 fps H.264 - 1920 x 1080 p - 29.97 fps H.264 - 1920 x 1080 p - 25 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 - 100 fps H.264 - 1280 x 720 p - 59.94 fps H.264 - 1280 x 720 p - 50 fps H.264 - 1280 x 720 p - 29.97 fps H.264 - 1280 x 720 p - 25 fps |
| BATTERY AND CHARGING | Pentax 645Z | Canon EOS Ra |
|---|
| 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 - 650 shots Playback - 6.67 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 645Z | Canon EOS Ra |
|---|
| 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 | - | DPOF support, Exif Print support, PictBridge support |
| Computer Connectivity | - | Mac, Windows |
| Flash Terminal | Hot shoe | Hot shoe |
| Connector Type | USB 3.0 (24 pin Micro-USB-C) HDMI output (19 pin micro HDMI Type D) Microphone (mini-phone stereo 3.5 mm) DC power input |
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 645Z | Canon EOS Ra |
|---|
| Self-Timer Delay | 2sec, 12sec | 10 sec, 2sec |
|---|---|---|
| Continuous Shooting Speed | 3 frames per second, 4.5 frames per second | 8 frames per second, 3 frames per second, 5 frames per second, 2.2 frames per second |
| Additional Features | RGB primary colour filter, interval shooting mode, peripheral illumination correction, Eye-Fi Card Ready, NR Slow Shutter, High ISO NR, Lateral Chromatic Aberration Correction, distortion correction function, anti-aliasing filter simulator, diffraction correction | 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, RGB primary colour filter with increased Hα light transmission rate, 30x zoom on LCD in Live View mode |
| OTHERS | Pentax 645Z | Canon EOS Ra |
|---|
| Included Accessories | Carrying strap, battery charger, body cap, eyecup, shoe cap | Battery charger, body cap, neck strap, USB cable |
|---|---|---|
| Software | Drivers & Utilities | Canon Digital Photo Professional |
| Max Operating Temperature | - | 40 °C |
| Min Operating Temperature | - | 0 °C |
| Service & Support | - | Limited warranty - 2 years |
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