In depth comparison and review of Panasonic Lumix G DMC-GX8K + 14-42mm and Pentax 645Z. 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 | Panasonic Lumix G DMC-GX8K + 14-42mm | Pentax 645Z |
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| Product Type | Digital camera - 4K - mirrorless system | Digital camera - 1080p - SLR with Live View mode, movie recording |
|---|---|---|
| Lens Included | 14-42mm lens | Body only |
| Height | 7.79 cm | 11.7 cm |
| Width | 13.32 cm | 15.6 cm |
| Depth | 6.31 cm | 12.3 cm |
| Weight | 435 g | 1.47 kg |
| Weight Details | - | Camera body only: 1.47 kg Camera with battery and memory card: 1.55 kg |
| Enclosure Colour | Silver | - |
| Protection | Splashproof | Dust-resistant, water-resistant |
| Digital Zoom | 4x | - |
| Optical Zoom | 3x | - |
| SENSOR | Panasonic Lumix G DMC-GX8K + 14-42mm | Pentax 645Z |
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| Sensor Resolution | 20.3 Megapixel | 51.4 Megapixel |
|---|---|---|
| Optical Sensor Type | Live MOS | CMOS |
| Total Pixels | 21,770,000 pixels | 52,990,000 pixels |
| Effective Sensor Resolution | 20,300,000 pixels | 51,400,000 pixels |
| Optical Sensor Size | Four Thirds (17.3 x 13.0 mm) | - |
| Frame Rate (Max Resolution) | 25 fps | 30 fps |
| Sensor Dust Reduction | Yes | Yes |
| Sensor Features | Supersonic Wave Filter (SWF) | Dust Reduction (image sensor vibration) |
| Image Stabiliser | Optical (image sensor shift mechanism) | - |
| Built-in Optical Image Stabiliser | Yes | - |
| Sensors | Digital level metre | - |
| LENS | Panasonic Lumix G DMC-GX8K + 14-42mm | Pentax 645Z |
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| Type | Zoom lens - 3x zoom - 14 - 42 mm - f/3.5-5.6 G II | - |
|---|---|---|
| Focal Length Equivalent to 35mm Camera | 28 - 84mm | - |
| Focus Adjustment | Automatic, manual | - |
| Min Focus Distance | 20 cm | - |
| Max View Angle | 75 degree(s) | - |
| Zoom Adjustment | Manual | - |
| Lens Construction | 8 groups / 9 elements | - |
| Filter Size | 46 mm | - |
| Lens Mounting Type | Micro Four Thirds | Pentax 645AF |
| Features | Internal focusing system, aspherical lens, Stepping Motor (STM) technology | - |
| FOCUSING | Panasonic Lumix G DMC-GX8K + 14-42mm | Pentax 645Z |
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| Auto Focus | TTL contrast detection | TTL contrast and phase detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | 49 | 27 |
| Auto Focus Features | Focus Peaking function | - |
| AE/AF Control | Face-priority AF, Subject-tracking AF, Touch Area AF | - |
| Face Detection | Yes | - |
| VIEWFINDER | Panasonic Lumix G DMC-GX8K + 14-42mm | Pentax 645Z |
|---|
| Viewfinder Type | Electronic - OLED | Optical - trapezoid prism |
|---|---|---|
| Viewfinder Colour Support | Colour | - |
| Viewfinder Resolution | 2,360,000 pixels | - |
| Optical Viewfinder Field Coverage | 100% | 98% |
| Optical Viewfinder Magnification | 1.54x | 0.62x |
| Optical Viewfinder Dioptric Correction Range | -4 to +3 | -3.5 to +2 |
| Field of View Crop Factor | 2 | 1.3 |
| Features | Auto eye sensor | - |
| EXPOSURE & WHITE BALANCE | Panasonic Lumix G DMC-GX8K + 14-42mm | Pentax 645Z |
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| ISO (Max) | 25600 | 204800 |
|---|---|---|
| Native ISO | 200-12800 | 100-204800 |
| Extended ISO (Max) | 25600 | - |
| Extended ISO (Min) | 100 | - |
| Light Sensitivity | ISO 100, ISO 800, ISO 400, ISO 200, ISO 1600, ISO 6400, ISO 3200, ISO auto, ISO 12800, ISO 25600 | ISO auto (100-204800), ISO 100-248000 |
| Exposure Metering | Multi-segment, centre-weighted, spot | Multi-segment, centre-weighted, spot |
| Exposure Metering Zones | 1728 | - |
| Exposure Modes | Programme, bulb, automatic, manual, aperture-priority, shutter-priority | Programme, bulb, manual, aperture-priority, shutter-priority, ISO priority, shutter & aperture priority |
| Special Effects | Sepia, Vivid, natural, monochrome, landscape, portrait, Cross Process, Retro, Expressive, high dynamic, Bleach Bypass, Selective Colour, High Key, Low Key, Toy effect, Star Filter, Impressive Art, One Point Colour, Dynamic Monochrome, Sunshine, Old Days, Toy Pop, Rough Monochrome, Silky Monochrome | 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 | Cloudy, tungsten light, Flash, daylight, shade, 2500K - 10000K (100K steps) | Tungsten light, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (warm white), fluorescent light (daylight colour), fluorescent light (daylight white) |
| Shutter Type | Electronic | Electronic |
| Max Shutter Speed | 1/8000 sec | 1/4000 sec |
| Min Shutter Speed | 60 sec | 30 sec |
| Exposure Compensation | ±5 EV range, in 1/3 EV steps | ±5 EV range, in 1/2 or 1/3 EV steps |
| Auto Exposure Bracketing | 7 steps in 1/3, 2/3 or 1 EV steps | - |
| White Balance Bracketing | Yes | - |
| X-sync Speed | 1/125sec | 1/125sec |
| Exposure Range | EV 0-18 (ISO 100) | EV -1-21 (ISO 200) |
| Retouch | Clear Retouch function | - |
| DISPLAY | Panasonic Lumix G DMC-GX8K + 14-42mm | Pentax 645Z |
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| Type | 3" OLED display | 3.2" LCD display |
|---|---|---|
| Touch Screen | Yes | - |
| Display Format | 1,040,000 pixels | 1,037,000 pixels |
| Display Form Factor | Folding | Folding |
| Display Features | Display brightness control, display colour control, display contrast control, Touch AE, Touch AF | Display brightness control, display colour control |
| FLASH | Panasonic Lumix G DMC-GX8K + 14-42mm | Pentax 645Z |
|---|
| Camera Flash | Pop-up flash | - |
|---|---|---|
| Flash Modes | Fill-in mode, slow synchro, auto mode, flash OFF mode, red-eye reduction | - |
| Red-Eye Reduction | Yes | - |
| Features | AF illuminator | - |
| VIDEOGRAPHY / CAMCORDER | Panasonic Lumix G DMC-GX8K + 14-42mm | Pentax 645Z |
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| Digital Video Format | AVCHD, H.264 | MJPEG, H.264 |
|---|---|---|
| Image Recording Format | JPEG, RAW, RAW + JPEG, MPO, MPO + JPEG | JPEG, RAW, RAW + JPEG |
| Max Video Resolution | 3840 x 2160 | 1920 x 1080 |
| Surround Sound | Dolby Digital AC-3 (2 channel) recording | - |
| Microphone Operation Mode | Stereo | - |
| Microphone Features | Wind noise reduction | - |
| MEMORY | Panasonic Lumix G DMC-GX8K + 14-42mm | Pentax 645Z |
|---|
| Memory Card Slot | 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 |
| Memory Card Included | No | No |
| Image Storage | 5184 x 3888 3712 x 2784 2624 x 1968 MPO 1824 x 1368 - 3D mode 5184 x 3456 3712 x 2480 2624 x 1752 MPO 1824 x 1216 - 3D mode 5184 x 2920 3840 x 2160 1920 x 1080 MPO 1824 x 1024 - 3D mode 3888 x 3888 2784 x 2784 1968 x 1968 MPO 1712 x 1712 - 3D mode |
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| Video Capture | AVCHD - 3840 x 2160 - 25 fps - 100Mbps AVCHD - 3840 x 2160 - 24 fps - 100Mbps AVCHD - 1920 x 1080 - 50 fps - 28Mbps AVCHD - 1920 x 1080 - 25 fps - 20Mbps AVCHD - 1280 x 720 - 25 fps - 10Mbps H.264 - 640 x 480 - 25 fps - 4Mbps |
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| BATTERY AND CHARGING | Panasonic Lumix G DMC-GX8K + 14-42mm | Pentax 645Z |
|---|
| Battery Type | Lithium Ion - manufacturer-specific | Pentax D-Li90 Lithium Ion |
|---|---|---|
| Details | Li-ion rechargeable battery - 1200 mAh (included) | Pentax D-Li90 Li-ion rechargeable battery (included) |
| Battery Life | Photo shooting - 330 shots | Photo shooting - 650 shots Playback - 6.67 hours |
| CONNECTIONS | Panasonic Lumix G DMC-GX8K + 14-42mm | Pentax 645Z |
|---|
| Interface | Composite video/audio, HDMI, USB 2.0, IEEE 802.11b/g/n, NFC (Near Field Communication) | HDMI, USB 3.0 |
|---|---|---|
| Connectivity Features | Remote control via mobile devices, remote live view | - |
| Print Standard | Direct print, Exif Print support, PictBridge support | - |
| Flash Terminal | Hot shoe | Hot shoe |
| Connector Type | USB 2.0 Composite video/audio output HDMI output (19 pin micro HDMI Type D) Remote control (sub-mini phone 2.5 mm) Microphone (sub-mini phone stereo 2.5 mm) |
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 |
| FEATURES | Panasonic Lumix G DMC-GX8K + 14-42mm | Pentax 645Z |
|---|
| Self-Timer Delay | 10 sec, 2sec | 2sec, 12sec |
|---|---|---|
| Continuous Shooting Speed | 2 frames per second, 8 frames per second, 10 frames per second, 6 frames per second, 5.5 frames per second | 3 frames per second, 4.5 frames per second |
| Additional Features | Built-in speaker, RGB primary colour filter, digital image rotation, histogram display, cropping an image, resizing an image, in-camera film editing, Intelligent Resolution Technology, Dolby Digital Stereo Creator, Intelligent Auto (iA), Intelligent D-range Control, HDR image enhancement technology, 3D photo shooting, text stamp, Touch Shutter technology, Multi-process Noise Reduction, Time-Lapse recording, Light Speed AF, silent shooting, Creative Panorama function | 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 |
| OTHERS | Panasonic Lumix G DMC-GX8K + 14-42mm | Pentax 645Z |
|---|
| Included Accessories | Battery charger, dust cap, body cap, lens cap, shoulder strap, USB cable, power cable, hot shoe cap, housing cover | Carrying strap, battery charger, body cap, eyecup, shoe cap |
|---|---|---|
| Software | Drivers & Utilities, Loilo LoiLoScope (Trial), Panasonic PHOTOfunSTUDIO 9.7 Premium Edition, SILKYPIX Developer Studio 4.3 SE | Drivers & Utilities |
| Max Operating Temperature | 40 °C | - |
| Min Operating Temperature | 0 °C | - |
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