Side by side comparison and review of Panasonic Lumix G DMC-GX8 and Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom. 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 | Panasonic Lumix G DMC-GX8 | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Product Type | Digital camera - 4K - mirrorless system | Digital camera - 4K - mirrorless system |
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| Lens Included | Body only | Body only |
| Height | 7.79 cm | 9.56 cm |
| Width | 13.32 cm | 12.69 cm |
| Depth | 6.31 cm | 7.37 cm |
| Weight | 435 g | 650 g |
| Weight Details | - | Camera with battery and memory card: 650 g |
| Enclosure Colour | Silver | Black | Black |
| Protection | Splashproof | Dust-resistant, moisture-resistant |
| Digital Zoom | 4x | 4x |
| SENSOR | Panasonic Lumix G DMC-GX8 | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Sensor Resolution | 20.3 Megapixel | 24.2 Megapixel |
|---|---|---|
| Optical Sensor Type | Live MOS | Exmor R CMOS |
| Total Pixels | 21,770,000 pixels | 25,300,000 pixels |
| Effective Sensor Resolution | 20,300,000 pixels | 24,200,000 pixels |
| Optical Sensor Size | Four Thirds (17.3 x 13.0 mm) | Full Frame (35.6 x 23.8 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), Anti-Dust coating |
| Image Stabiliser | Optical (image sensor shift mechanism) | Optical (5-axis Steady Shot) |
| Built-in Optical Image Stabiliser | Yes | Yes |
| Sensors | Digital level metre | Digital level metre |
| PROCESSOR | Panasonic Lumix G DMC-GX8 | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Image Processor | - | BIONZ X |
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| LENS | Panasonic Lumix G DMC-GX8 | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Type | - | Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
|---|---|---|
| Focal Length Equivalent to 35mm Camera | - | 36 - 157.5mm |
| Focus Adjustment | - | Automatic, manual |
| Min Focus Distance | - | 38 cm |
| Max View Angle | - | 84 degree(s) |
| Zoom Adjustment | - | Manual |
| Lens Construction | - | 14 groups / 17 elements |
| Filter Size | - | 77 mm |
| Lens Mounting Type | Micro Four Thirds | Sony E-mount |
| Features | - | ED glass, aspherical lens, dustproof, AA (advanced aspherical) lens, moisture-resistant, Direct Drive Super Sonic wave Motor (DDSSM), fluorine coating, Nano AR Coating |
| FOCUSING | Panasonic Lumix G DMC-GX8 | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Auto Focus | TTL contrast detection | TTL contrast and phase detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | 49 | 693 |
| Auto Focus Features | Focus Peaking function | Focus Peaking function |
| AE/AF Control | Face-priority AF, Subject-tracking AF, Touch Area AF | Face-priority AF, Touch Area AF |
| Face Detection | Yes | Face-priority AF function |
| VIEWFINDER | Panasonic Lumix G DMC-GX8 | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Viewfinder Type | Electronic - OLED | Electronic - OLED |
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| Viewfinder Colour Support | Colour | Colour |
| Viewfinder Diagonal Size | - | 0.5" |
| Viewfinder Resolution | 2,360,000 pixels | 2,359,296 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 | Viewfinder brightness control, colour temperature control |
| EXPOSURE & WHITE BALANCE | Panasonic Lumix G DMC-GX8 | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| ISO (Max) | 25600 | 204800 |
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| Native ISO | - | 100-51200 |
| Extended ISO (Max) | - | 204800 |
| Extended ISO (Min) | - | 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 102400, ISO 204800, ISO 100-51200 |
| Exposure Metering | Multi-segment, centre-weighted, spot | Multi-segment, centre-weighted, spot |
| Exposure Metering Zones | 1728 | 1200 |
| Exposure Modes | Programme, bulb, automatic, manual, aperture-priority, shutter-priority | Programme, automatic, manual, aperture-priority, shutter-priority |
| Bracketing Modes | - | Flash Exposure Bracketing, white balance bracketing |
| Shooting Programs | - | Landscape, portrait mode, macro, night portrait, night scene, sports mode, sunset |
| 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 | Black & White, Sepia, Neutral, Vivid, sunset, landscape, portrait, clear, deep, light, autumn leaves, Retro, partial colour, Toy camera, Posterisation, High contrast monochrome, Pop Colour, Rich-tone monochrome, Soft High-key, Night Scene, Standard, Style Box, Posterisation (B/W) |
| 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, fluorescent light (cool white), fluorescent light (daylight), fluorescent light (warm white), Underwater, 2500K - 9900K, fluorescent light (daylight white) |
| Shutter Type | - | 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, 9 steps in 1/3, 1/2, 2/3, 1, 2 or 3 EV steps |
| White Balance Bracketing | Yes | 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-GX8 | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Type | 3" OLED display | 2.95" LCD display |
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| Touch Screen | Yes | Yes |
| Display Format | 1,040,000 pixels | 921,600 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-GX8 | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Camera Flash | Pop-up flash | - |
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| 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-GX8 | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Digital Video Format | AVCHD, H.264 | AVCHD, XAVC S |
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| Image Recording Format | JPEG, RAW, RAW + JPEG, MPO, MPO + JPEG | JPEG, RAW, RAW + JPEG |
| Max Video Resolution | 3840 x 2160 | 3840 x 2160 |
| Audio Signal Format | - | Dolby Digital AC-3 (2 channel), Linear PCM |
| Surround Sound | Dolby Digital AC-3 (2 channel) recording | - |
| Microphone Operation Mode | Stereo | Stereo |
| Microphone Features | Wind noise reduction | - |
| MEMORY | Panasonic Lumix G DMC-GX8 | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Memory Card Slot | SD card | Memory Stick PRO Duo card, SD card |
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| 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, Memory Stick PRO Duo, SDXC Memory Card, SDHC Memory Card, Memory Stick PRO-HG Duo, 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 | 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 |
6000 x 4000 3936 x 2624 3008 x 2000 1968 x 1312 6000 x 3376 3936 x 2216 3008 x 1688 1968 x 1112 |
| 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 S - 3840 x 2160 p - 30 fps - 100Mbps XAVC S - 3840 x 2160 p - 24 fps - 100Mbps XAVC S - 3840 x 2160 p - 30 fps - 60Mbps XAVC S - 3840 x 2160 p - 24 fps - 60Mbps XAVC S - 1920 x 1080 p - 120 fps - 100Mbps XAVC S - 1920 x 1080 p - 120 fps - 60Mbps XAVC S - 1920 x 1080 p - 60 fps - 50Mbps XAVC S - 1920 x 1080 p - 30 fps - 50Mbps XAVC S - 1920 x 1080 p - 24 fps - 50Mbps XAVC S - 1920 x 1080 p - 60 fps - 25Mbps XAVC S - 1920 x 1080 p - 30 fps - 16Mbps AVCHD - 1920 x 1080 i - 60 fps - 24Mbps AVCHD - 1920 x 1080 i - 60 fps - 17Mbps XAVC S - 3840 x 2160 p - 25 fps - 100Mbps XAVC S - 3840 x 2160 p - 25 fps - 60Mbps XAVC S - 1920 x 1080 p - 100 fps - 100Mbps XAVC S - 1920 x 1080 p - 100 fps - 60Mbps XAVC S - 1920 x 1080 p - 50 fps - 50Mbps XAVC S - 1920 x 1080 p - 25 fps - 50Mbps AVCHD - 1920 x 1080 i - 50 fps - 24Mbps AVCHD - 1920 x 1080 i - 50 fps - 17Mbps |
| BATTERY AND CHARGING | Panasonic Lumix G DMC-GX8 | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Battery Type | Lithium Ion - manufacturer-specific | Sony NP-FZ100 Lithium Ion |
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| 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 - 710 shots (LCD Monitor on) Photo shooting - 610 shots (EVF on) Video recording - 2.08 hours (LCD Monitor on) Voice recording - 1.92 hours (EVF on) |
| CONNECTIONS | Panasonic Lumix G DMC-GX8 | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Interface | Composite video/audio, HDMI, USB 2.0, IEEE 802.11b/g/n, NFC (Near Field Communication) | HDMI, USB 3.1, IEEE 802.11b/g/n, NFC (Near Field Communication), Bluetooth 4.1 |
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| Connectivity Features | Remote control via mobile devices, remote live view | Remote control via mobile devices, remote live view, Wireless Image Transfer |
| Print Standard | Direct print, Exif Print support, PictBridge support | DPOF 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 3.1 (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) |
| FEATURES | Panasonic Lumix G DMC-GX8 | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Self-Timer Delay | 10 sec, 2sec | 10 sec, 2sec, 5 sec |
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| 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, 10 frames per second |
| HDR Mode | - | Auto HDR mode |
| 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, sharpness control, digital image rotation, camera orientation detection, histogram display, saturation control, shadow point display, highlight point display, takes photos while film recording, contrast control, Dynamic Range Optimizer, USB charging, built-in help guide, Dolby Digital Stereo Creator, Intelligent AUTO (iAUTO), Clear Image Zoom, noise reduction over long exposures, Lens Distortion Correction, high ISO speed noise reduction, PlayMemories Camera Apps support, silent shooting, BRAVIA Sync function, PhotoTV HD, GPS via mobile, S-Log2 gamma setting, peripheral shading correction, chromatic aberration correction, anti-flicker, Hybrid Log-Gamma (HLG) recording, S-Log3 gamma setting |
| OTHERS | Panasonic Lumix G DMC-GX8 | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Included Accessories | Battery charger, body cap, shoulder strap, USB cable, power cable, hot shoe cap, housing cover | Eyepiece cover, lens hood, dust cap, body cap, shoulder strap, AC power adaptor, shoe cap, micro-USB cable |
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| 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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