In depth comparison and review of Panasonic Lumix G DMC-GX8K + 14-42mm and Sony Alpha7 IV ILCE-7M4. 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 | Sony Alpha7 IV ILCE-7M4 |
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| Product Type | Digital camera - 4K - mirrorless system | Digital camera - 4K - mirrorless system |
|---|---|---|
| Lens Included | 14-42mm lens | Body only |
| Height | 7.79 cm | 9.64 cm |
| Width | 13.32 cm | 13.13 cm |
| Depth | 6.31 cm | 7.98 cm |
| Weight | 435 g | 658 g |
| Weight Details | - | Camera with battery and memory card: 658 g |
| Body Material | - | Magnesium alloy |
| Enclosure Colour | Silver | - |
| Protection | Splashproof | Dust-resistant, moisture-resistant |
| Digital Zoom | 4x | 4x |
| Optical Zoom | 3x | - |
| SENSOR | Panasonic Lumix G DMC-GX8K + 14-42mm | Sony Alpha7 IV ILCE-7M4 |
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| Sensor Resolution | 20.3 Megapixel | 33.0 Megapixel |
|---|---|---|
| Optical Sensor Type | Live MOS | Exmor R CMOS |
| Total Pixels | 21,770,000 pixels | 34,100,000 pixels |
| Effective Sensor Resolution | 20,300,000 pixels | 33,000,000 pixels |
| Optical Sensor Size | Four Thirds (17.3 x 13.0 mm) | Full Frame (35.9 x 23.9 mm) |
| Frame Rate (Max Resolution) | 25 fps | 60 fps |
| Sensor Dust Reduction | Yes | Yes |
| Sensor Features | Supersonic Wave Filter (SWF) | Dust Reduction (image sensor vibration), Anti-Dust coating |
| Image Stabiliser | Optical (image sensor shift mechanism) | Optical (Steady Shot with 5-axis Intelligent Active Mode) |
| Built-in Optical Image Stabiliser | Yes | Yes |
| Sensors | Digital level metre | Digital level metre |
| PROCESSOR | Panasonic Lumix G DMC-GX8K + 14-42mm | Sony Alpha7 IV ILCE-7M4 |
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| Image Processor | - | BIONZ XR |
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| LENS | Panasonic Lumix G DMC-GX8K + 14-42mm | Sony Alpha7 IV ILCE-7M4 |
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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 | Sony E-mount |
| Features | Internal focusing system, aspherical lens, Stepping Motor (STM) technology | - |
| FOCUSING | Panasonic Lumix G DMC-GX8K + 14-42mm | Sony Alpha7 IV ILCE-7M4 |
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| Auto Focus | TTL contrast detection | TTL contrast and phase detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | 49 | 759 |
| Auto Focus Features | Focus Peaking function | Focus Peaking function, Predictive Focus Control |
| AE/AF Control | Face-priority AF, Subject-tracking AF, Touch Area AF | Face-priority AF, Subject-tracking AF, Touch Area AF, Zone AF, Real-time Eye AF, Real-time Tracking AF, Wide-area AF, Expanded area AF, animal eye detection, bird eye detection, right/left eye select |
| Face Detection | Yes | Eye Detect AF, face-priority AF function |
| VIEWFINDER | Panasonic Lumix G DMC-GX8K + 14-42mm | Sony Alpha7 IV ILCE-7M4 |
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| Viewfinder Type | Electronic - OLED | Electronic - OLED |
|---|---|---|
| Viewfinder Colour Support | Colour | Colour |
| Viewfinder Diagonal Size | - | 0.5" |
| Viewfinder Resolution | 2,360,000 pixels | 3,686,400 pixels |
| Optical Viewfinder Field Coverage | 100% | 100% |
| Optical Viewfinder Magnification | 1.54x | 0.78x |
| Optical Viewfinder Dioptric Correction Range | -4 to +3 | -4 to +3 |
| Field of View Crop Factor | 2 | - |
| Features | Auto eye sensor | - |
| EXPOSURE & WHITE BALANCE | Panasonic Lumix G DMC-GX8K + 14-42mm | Sony Alpha7 IV ILCE-7M4 |
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| ISO (Max) | 25600 | 204800 |
|---|---|---|
| Native ISO | 200-12800 | 100-51200 |
| Extended ISO (Max) | 25600 | 204800 |
| Extended ISO (Min) | 100 | 50 |
| Light Sensitivity | ISO 100, ISO 800, ISO 400, ISO 200, ISO 1600, ISO 6400, ISO 3200, ISO auto, ISO 12800, ISO 25600 | ISO 50, ISO auto, ISO 204800, ISO 100-51200 |
| Exposure Metering | Multi-segment, centre-weighted, spot | Multi-segment, centre-weighted, average, highlight spot |
| Exposure Metering Zones | 1728 | 1200 |
| Exposure Modes | Programme, bulb, automatic, manual, aperture-priority, shutter-priority | Automatic, manual, aperture-priority, shutter-priority |
| Bracketing Modes | - | Dynamic Range Bracketing, white balance bracketing |
| 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 | Soft Skin, Creative Look presets |
| White Balance | Custom, automatic, presets | Custom, automatic, presets |
| White Balance Presets | Cloudy, tungsten light, Flash, daylight, shade, 2500K - 10000K (100K steps) | Incandescent, fluorescent, cloudy, Flash, daylight, shade, Underwater, 2500K - 9900K |
| Shutter Type | Electronic | Mechanical electronically-controlled |
| Max Shutter Speed | 1/8000 sec | 1/8000 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 | 3, 5 or 9 steps |
| White Balance Bracketing | Yes | - |
| X-sync Speed | 1/125sec | 1/250sec |
| Exposure Range | EV 0-18 (ISO 100) | EV -3-20 (ISO 100) |
| Retouch | Clear Retouch function | - |
| DISPLAY | Panasonic Lumix G DMC-GX8K + 14-42mm | Sony Alpha7 IV ILCE-7M4 |
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| Type | 3" OLED display | 3" LCD display |
|---|---|---|
| Touch Screen | Yes | Yes |
| Display Format | 1,040,000 pixels | 1,036,000 pixels |
| Display Form Factor | Folding | Folding |
| Display Features | Display brightness control, display colour control, display contrast control, Touch AE, Touch AF | Display brightness control |
| FLASH | Panasonic Lumix G DMC-GX8K + 14-42mm | Sony Alpha7 IV ILCE-7M4 |
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| 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 | Sony Alpha7 IV ILCE-7M4 |
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| Digital Video Format | AVCHD, H.264 | MPEG-4, H.264, XAVC S, H.265, XAVC HS |
|---|---|---|
| Image Recording Format | JPEG, RAW, RAW + JPEG, MPO, MPO + JPEG | JPEG, RAW, RAW + JPEG, HEIF, RAW + HEIF |
| Max Video Resolution | 3840 x 2160 | 3840 x 2160 |
| Audio Signal Format | - | Linear PCM, AAC |
| Surround Sound | Dolby Digital AC-3 (2 channel) recording | - |
| Microphone Operation Mode | Stereo | Stereo |
| Microphone Features | Wind noise reduction | Wind noise reduction |
| MEMORY | Panasonic Lumix G DMC-GX8K + 14-42mm | Sony Alpha7 IV ILCE-7M4 |
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| Memory Card Slot | SD card | SD card, CFexpress / 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, CFexpress |
| Memory Card Included | 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 |
7008 x 4672 4608 x 3072 3504 x 2336 4608 x 3072 - APS-C mode 3504 x 2336 - APS-C mode 6224 x 4672 4096 x 3072 3120 x 2336 4096 x 3072 - APS-C mode 3120 x 2336 - APS-C mode 7008 x 3944 4608 x 2592 3504 x 1968 4608 x 2592 - APS-C mode 3504 x 1968 - APS-C mode 4672 x 4672 3072 x 3072 2336 x 2336 3072 x 3072 - APS-C mode 2336 x 2336 - APS-C mode |
| 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 |
XAVC HS - 3840 x 2160 p - 60 fps XAVC HS - 3840 x 2160 p - 24 fps XAVC HS - 3840 x 2160 p - 50 fps XAVC S - 3840 x 2160 p - 60 fps XAVC S - 3840 x 2160 p - 30 fps XAVC S - 3840 x 2160 p - 24 fps XAVC S - 3840 x 2160 p - 50 fps XAVC S - 3840 x 2160 p - 25 fps XAVC S - 1920 x 1080 p - 60 fps XAVC S - 1920 x 1080 p - 30 fps XAVC S - 1920 x 1080 p - 24 fps XAVC S - 1920 x 1080 p - 50 fps XAVC S - 1920 x 1080 p - 25 fps |
| BATTERY AND CHARGING | Panasonic Lumix G DMC-GX8K + 14-42mm | Sony Alpha7 IV ILCE-7M4 |
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| Battery Type | Lithium Ion - manufacturer-specific | Sony NP-FZ100 Lithium Ion |
|---|---|---|
| Details | Li-ion rechargeable battery - 1200 mAh (included) | Sony NP-FZ100 Li-ion rechargeable battery - 2280 mAh (included) |
| Battery Life | Photo shooting - 330 shots | Photo shooting - 520 shots (EVF on) Photo shooting - 580 shots (LCD Monitor on) Video recording - 100 minutes (EVF on) Video recording - 110 minutes (LCD Monitor on) |
| CONNECTIONS | Panasonic Lumix G DMC-GX8K + 14-42mm | Sony Alpha7 IV ILCE-7M4 |
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| Interface | Composite video/audio, HDMI, USB 2.0, IEEE 802.11b/g/n, NFC (Near Field Communication) | USB 2.0, USB-C, IEEE 802.11a/b/g/n/ac, Bluetooth 4.1 |
|---|---|---|
| Connectivity Features | Remote control via mobile devices, remote live view | Remote control via mobile devices, remote live view, Wireless Image Transfer, wireless video upload to FTP server, PC Remote functions via Wi-Fi |
| Print Standard | Direct print, Exif Print support, PictBridge support | Exif Print support, PRINT Image Matching |
| 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 2.0 (5 pin Micro-USB Type B) USB 3.2 Gen 1 (USB Type-C) Microphone (mini-phone stereo 3.5 mm) Headphones (mini-phone stereo 3.5 mm) |
| FEATURES | Panasonic Lumix G DMC-GX8K + 14-42mm | Sony Alpha7 IV ILCE-7M4 |
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| Self-Timer Delay | 10 sec, 2sec | 10 sec, 2sec, 5 sec |
|---|---|---|
| Continuous Shooting Speed | 2 frames per second, 8 frames per second, 10 frames per second, 6 frames per second, 5.5 frames per second | 8 frames per second, 3 frames per second, 10 frames per second, 6 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 | Built-in speaker, camera orientation detection, histogram display, shadow point display, highlight point display, Dynamic Range Optimizer, USB charging, Intelligent AUTO (iAUTO), fast motion recording, noise reduction over long exposures, high ISO speed noise reduction, silent shooting, BRAVIA Sync function, distortion correction function, S-Log2 gamma setting, slow motion recording, peripheral shading correction, chromatic aberration correction, anti-flicker, Hybrid Log-Gamma (HLG) recording, S-Log3 gamma setting, 4:2:2 10-bit internal rercording, simultaneous streaming & recording mode, focus breathing compensation, USB streaming, 14-bit RAW |
| OTHERS | Panasonic Lumix G DMC-GX8K + 14-42mm | Sony Alpha7 IV ILCE-7M4 |
|---|
| Included Accessories | Battery charger, dust cap, body cap, lens cap, shoulder strap, USB cable, power cable, hot shoe cap, housing cover | Eyepiece cover, body cap, shoulder strap, AC power adaptor, shoe cap, USB-C to USB-A cable |
|---|---|---|
| Software | Drivers & Utilities, Loilo LoiLoScope (Trial), Panasonic PHOTOfunSTUDIO 9.7 Premium Edition, SILKYPIX Developer Studio 4.3 SE | - |
| Max Operating Temperature | 40 °C | 40 °C |
| Min Operating Temperature | 0 °C | 0 °C |
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