Side by side comparison and review of Pentax 645Z and Olympus OM-D E-M1X. Compare design, sensors, zoom functions, batteries and other key specifications and features to simplify the choice of your perfect digital camera. Our goal is to make it easier for you to decide on the camera that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Pentax 645Z | Olympus OM-D E-M1X |
|---|
| Product Type | Digital camera - 1080p - SLR with Live View mode, movie recording | Digital camera - 4K - mirrorless system |
|---|---|---|
| Lens Included | Body only | Body only |
| Height | 11.7 cm | 14.68 cm |
| Width | 15.6 cm | 14.44 cm |
| Depth | 12.3 cm | 7.54 cm |
| Weight | 1.47 kg | 849 g |
| Weight Details | Camera body only: 1.47 kg Camera with battery and memory card: 1.55 kg |
Camera with battery: 849 g Camera with battery and memory card: 997 g |
| Body Material | - | Magnesium alloy |
| Enclosure Colour | - | Black |
| Protection | Dust-resistant, water-resistant | Splashproof, freezeproof, dust-resistant, IPX1 |
| Navigation | - | GPS receiver |
| SENSOR | Pentax 645Z | Olympus OM-D E-M1X |
|---|
| Sensor Resolution | 51.4 Megapixel | 20.4 Megapixel |
|---|---|---|
| Optical Sensor Type | CMOS | Live MOS |
| Total Pixels | 52,990,000 pixels | 21,770,000 pixels |
| Effective Sensor Resolution | 51,400,000 pixels | 20,400,000 pixels |
| Optical Sensor Size | - | Four Thirds (4/3") |
| Frame Rate (Max Resolution) | 30 fps | 24 fps |
| Sensor Dust Reduction | Yes | Yes |
| Sensor Features | Dust Reduction (image sensor vibration) | Supersonic Wave Filter (SWF) |
| Image Stabiliser | - | Optical (5-axis image sensor shift mechanism) |
| Built-in Optical Image Stabiliser | - | Yes |
| Sensors | - | Barometer, magnetometer, temperature |
| PROCESSOR | Pentax 645Z | Olympus OM-D E-M1X |
|---|
| Image Processor | - | Dual TruePic VIII |
|---|
| LENS | Pentax 645Z | Olympus OM-D E-M1X |
|---|
| Lens Mounting Type | Pentax 645AF | Micro Four Thirds |
|---|
| FOCUSING | Pentax 645Z | Olympus OM-D E-M1X |
|---|
| Auto Focus | TTL contrast and phase detection | TTL contrast and phase detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | 27 | 121 |
| Auto Focus Features | - | Focus Peaking function, Frequency Accelerating Sensor Technology (F.A.S.T.) AF system |
| AE/AF Control | - | Face-priority AF, Subject-tracking AF, Touch Area AF, Eye detection AF, Subject detection AF |
| Face Detection | - | Eye Detect AF, face-priority AF function |
| VIEWFINDER | Pentax 645Z | Olympus OM-D E-M1X |
|---|
| Viewfinder Type | Optical - trapezoid prism | Electronic - LCD |
|---|---|---|
| Viewfinder Colour Support | - | Colour |
| Viewfinder Resolution | - | 2,360,000 pixels |
| Optical Viewfinder Field Coverage | 98% | 100% |
| Optical Viewfinder Magnification | 0.62x | 1.65x |
| Optical Viewfinder Dioptric Correction Range | -3.5 to +2 | -4 to +2 |
| Field of View Crop Factor | 1.3 | 2 |
| Features | - | Auto eye sensor |
| EXPOSURE & WHITE BALANCE | Pentax 645Z | Olympus OM-D E-M1X |
|---|
| ISO (Max) | 204800 | 25600 |
|---|---|---|
| Native ISO | 100-204800 | 200-25600 |
| Extended ISO (Min) | - | 64 |
| Light Sensitivity | ISO auto (100-204800), ISO 100-248000 | ISO 100, ISO 64, ISO auto (200-6400), ISO 200-25600 |
| Exposure Metering | Multi-segment, centre-weighted, spot | Multi-segment, centre-weighted, spot |
| Exposure Metering Zones | - | 324 |
| Exposure Modes | Programme, bulb, manual, aperture-priority, shutter-priority, ISO priority, shutter & aperture priority | Programme, bulb, automatic, manual, aperture-priority, shutter-priority |
| Bracketing Modes | - | Art Filter bracketing, focus bracketing, ISO sensitivity bracketing, Flash Exposure Bracketing, white balance bracketing |
| Special Effects | Natural, bright, Vibrant, monochrome, Muted, landscape, portrait, Cross Process, Bleach Bypass, Radiant, Reversal Film | - |
| 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) | Incandescent, fluorescent, cloudy, sunlight, Flash, shade, Underwater, 3000K - 7500K |
| Shutter Type | Electronic | Mechanical electronically-controlled |
| Max Shutter Speed | 1/4000 sec | 1/8000 sec |
| Min Shutter Speed | 30 sec | 60 sec |
| Exposure Compensation | ±5 EV range, in 1/2 or 1/3 EV steps | ±5 EV range, in 1, 1/2 or 1/3 EV steps |
| White Balance Bracketing | - | Yes |
| X-sync Speed | 1/125sec | 1/250sec |
| Exposure Range | EV -1-21 (ISO 200) | EV -2-20 (ISO 100) |
| DISPLAY | Pentax 645Z | Olympus OM-D E-M1X |
|---|
| Type | 3.2" LCD display | 3" LCD display |
|---|---|---|
| Touch Screen | - | Yes |
| Display Format | 1,037,000 pixels | 1,037,000 pixels |
| Display Form Factor | Folding | Rotating |
| Display Features | Display brightness control, display colour control | - |
| VIDEOGRAPHY / CAMCORDER | Pentax 645Z | Olympus OM-D E-M1X |
|---|
| Digital Video Format | MJPEG, H.264 | H.264, MOV |
|---|---|---|
| Image Recording Format | JPEG, RAW, RAW + JPEG | JPEG, RAW, RAW + JPEG |
| Max Video Resolution | 1920 x 1080 | 4096 x 2160 |
| Microphone Operation Mode | - | Stereo |
| MEMORY | Pentax 645Z | Olympus OM-D E-M1X |
|---|
| Memory Card Slot | Dual SD card | Dual 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-I Memory Card, SDXC UHS-I Memory Card, SDHC UHS-II Memory Card, SDXC UHS-II Memory Card |
| Memory Card Included | No | No |
| Image Storage | - | RAW 5184 x 3888 JPEG 5184 x 3888 RAW 8160 x 6120 - High Resolution Mode JPEG 8160 x 6120 - High Resolution Mode JPEG 5760 x 4320 - High Resolution Mode |
| BATTERY AND CHARGING | Pentax 645Z | Olympus OM-D E-M1X |
|---|
| Battery Type | Pentax D-Li90 Lithium Ion | Olympus BLH-1 Lithium Ion |
|---|---|---|
| Details | Pentax D-Li90 Li-ion rechargeable battery (included) | 2 x Olympus BLH-1 Li-ion rechargeable battery - 1720 mAh (included) |
| Battery Life | Photo shooting - 650 shots Playback - 6.67 hours |
Photo shooting - 2580 shots (quick sleep mode) Photo shooting - 870 shots Video recording - 170 minutes |
| CONNECTIONS | Pentax 645Z | Olympus OM-D E-M1X |
|---|
| Interface | HDMI, USB 3.0 | HDMI, USB 3.0, IEEE 802.11a/b/g/n/ac, Bluetooth 4.2 |
|---|---|---|
| Connectivity Features | - | Remote control via mobile devices, remote live view, QR code scanning |
| Print Standard | - | DPOF support, Exif Print support |
| 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 3.0 (USB Type-C) 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) |
| FEATURES | Pentax 645Z | Olympus OM-D E-M1X |
|---|
| Self-Timer Delay | 2sec, 12sec | 2sec, 12sec |
|---|---|---|
| Continuous Shooting Speed | 3 frames per second, 4.5 frames per second | 15 frames per second, 60 frames per second |
| HDR Mode | - | Auto HDR mode |
| 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 | Built-in speaker, auto power save, relay recording, USB charging, high-speed recording, Time-Lapse recording, Focus Stacking, Flickering Reduction function, 50-megapixel High Resolution mode |
| OTHERS | Pentax 645Z | Olympus OM-D E-M1X |
|---|
| Included Accessories | Carrying strap, battery charger, body cap, eyecup, shoe cap | Carrying strap, battery charger, body cap, eyecup, cable clip, cable protector, hot shoe cover, USB-C cable, battery holder |
|---|---|---|
| Software | Drivers & Utilities | - |
| Max Operating Temperature | - | 40 °C |
| Min Operating Temperature | - | -10 °C |
| Service & Support | - | Limited warranty - 2 years |
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