In depth comparison and review of Panasonic Lumix G DMC-G3 and Sony Alpha7s III ILCE-7SM3. 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-G3 | Sony Alpha7s III ILCE-7SM3 |
|---|
| Product Type | Digital camera - mirrorless system | Digital camera - 4K - mirrorless system |
|---|---|---|
| Lens Included | Body only | Body only |
| Height | 8.36 cm | 9.69 cm |
| Width | 11.52 cm | 12.89 cm |
| Depth | 4.67 cm | 8.08 cm |
| Weight | 336 g | 699 g |
| Weight Details | - | Camera with battery and memory card: 699 g |
| Body Material | - | Magnesium alloy |
| Enclosure Colour | Black | - |
| Protection | - | Dust-resistant, moisture-resistant |
| Digital Zoom | 2x | 4x |
| SENSOR | Panasonic Lumix G DMC-G3 | Sony Alpha7s III ILCE-7SM3 |
|---|
| Sensor Resolution | 16.0 Megapixel | 12.1 Megapixel |
|---|---|---|
| Optical Sensor Type | Live MOS | Exmor R CMOS |
| Total Pixels | 16,680,000 pixels | 12,900,000 pixels |
| Effective Sensor Resolution | 16,000,000 pixels | 12,100,000 pixels |
| Optical Sensor Size | Four Thirds (17.3 x 13.0 mm) | Full Frame (35.6 x 23.8 mm) |
| Frame Rate (Max Resolution) | - | 120 fps |
| Sensor Dust Reduction | Yes | Yes |
| Sensor Features | Supersonic Wave Filter (SWF) | Dust Reduction (image sensor vibration), Anti-Dust coating |
| Image Stabiliser | - | Optical (5-axis Steady Shot) |
| Built-in Optical Image Stabiliser | - | Yes |
| Sensors | - | Digital level metre |
| PROCESSOR | Panasonic Lumix G DMC-G3 | Sony Alpha7s III ILCE-7SM3 |
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| Image Processor | Venus Engine FHD | BIONZ XR |
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| LENS | Panasonic Lumix G DMC-G3 | Sony Alpha7s III ILCE-7SM3 |
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| Lens Mounting Type | Micro Four Thirds | Sony E-mount |
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| FOCUSING | Panasonic Lumix G DMC-G3 | Sony Alpha7s III ILCE-7SM3 |
|---|
| Auto Focus | TTL contrast detection | TTL contrast and phase detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | 23 | 759 |
| Auto Focus Features | - | Focus Peaking function, Predictive Focus Control |
| AE/AF Control | - | Flex Focus Point, Face-priority AF, Subject-tracking AF, Eye detection AF |
| Face Detection | Yes | Face Recognition, face-priority AF function |
| VIEWFINDER | Panasonic Lumix G DMC-G3 | Sony Alpha7s III ILCE-7SM3 |
|---|
| Viewfinder Type | Electronic - LCD | Built-in - electronic |
|---|---|---|
| Viewfinder Colour Support | Colour | Colour |
| Viewfinder Diagonal Size | - | 0.64" |
| Viewfinder Resolution | 1,440,000 pixels | 9,437,184 pixels |
| Optical Viewfinder Field Coverage | 100% | 100% |
| Optical Viewfinder Magnification | 0.70x | 0.9x |
| Optical Viewfinder Dioptric Correction Range | -4 to +4 | -4 to +3 |
| Field of View Crop Factor | 2 | - |
| EXPOSURE & WHITE BALANCE | Panasonic Lumix G DMC-G3 | Sony Alpha7s III ILCE-7SM3 |
|---|
| ISO (Max) | 6400 | 409600 |
|---|---|---|
| Extended ISO (Max) | - | 409600 |
| Extended ISO (Min) | - | 40 |
| Light Sensitivity | ISO 800, ISO 400, ISO 200, ISO 160, ISO 1600, ISO 6400, ISO 3200, ISO auto | ISO 204800, ISO 409600, ISO 80-102400, ISO 40 |
| Exposure Metering | Multi-segment, centre-weighted, spot | Multi-segment, centre-weighted, spot |
| Exposure Metering Zones | 144 | 1200 |
| Exposure Modes | Programme, bulb, manual, aperture-priority, shutter-priority | Bulb, automatic, manual, aperture-priority, shutter-priority |
| Bracketing Modes | - | Dynamic Range Bracketing |
| Shooting Programs | Portrait mode, party/indoor, night portrait, PET, scenery, food, illumination snap, flower, night scene, sports mode, sunset, soft skin, baby1, baby2, peripheral defocus, architecture | - |
| Special Effects | Vivid, Custom Effect, natural, monochrome, portrait, Scenery | - |
| White Balance | Custom, automatic, presets | Custom, automatic, presets |
| White Balance Presets | Incandescent, cloudy, Flash, daylight, shade, 2500K - 10000K (100K steps) | Incandescent, fluorescent, cloudy, Flash, daylight, shade, Underwater, 2500K - 9900K |
| Shutter Type | - | Mechanical electronically-controlled |
| Max Shutter Speed | 1/4000 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 | - | 3, 5 or 9 steps |
| White Balance Bracketing | Yes | - |
| X-sync Speed | 1/160 sec | 1/250sec |
| Exposure Range | EV 0-18 (ISO 100) | EV -3-20 (ISO 100) |
| DISPLAY | Panasonic Lumix G DMC-G3 | Sony Alpha7s III ILCE-7SM3 |
|---|
| Type | 3" LCD display | 3" LCD display |
|---|---|---|
| Touch Screen | Yes | Yes |
| Display Format | 460,000 pixels | 1,440,000 pixels |
| Display Form Factor | Rotating | Folding |
| Display Features | Display brightness control, display colour control | Display brightness control |
| FLASH | Panasonic Lumix G DMC-G3 | Sony Alpha7s III ILCE-7SM3 |
|---|
| Camera Flash | Pop-up flash | - |
|---|---|---|
| Guide Number (m / ISO 100) | 10.5 | - |
| Flash Modes | Fill-in mode, rear curtain sync, slow synchro, auto mode, flash OFF mode, red-eye reduction | - |
| Red-Eye Reduction | Yes | - |
| Features | AF illuminator, flash +/- compensation | - |
| VIDEOGRAPHY / CAMCORDER | Panasonic Lumix G DMC-G3 | Sony Alpha7s III ILCE-7SM3 |
|---|
| Digital Video Format | MJPEG, AVCHD | H.264, XAVC S, H.265, XAVC HS |
|---|---|---|
| Image Recording Format | JPEG, RAW, RAW + JPEG, MPO | JPEG, RAW, RAW + JPEG |
| Max Video Resolution | 1920 x 1080 | 3840 x 2160 |
| Audio Signal Format | - | AAC |
| Microphone Operation Mode | Stereo | Stereo |
| Microphone Features | Wind noise reduction, sensitivity control | - |
| MEMORY | Panasonic Lumix G DMC-G3 | Sony Alpha7s III ILCE-7SM3 |
|---|
| Memory Card Slot | SD card | Dual SD card, dual CFexpress |
|---|---|---|
| Supported Memory Cards | SD Memory Card, SDXC Memory Card, SDHC 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 | JPEG 4592 x 3448 JPEG 4576 x 3056 JPEG 4576 x 2576 JPEG 3232 x 2424 JPEG 3232 x 2160 JPEG 3232 x 1824 JPEG 2272 x 1704 JPEG 2272 x 1520 JPEG 1920 x 1080 JPEG 1824 x 1368 JPEG 1824 x 1216 JPEG 1824 x 1024 JPEG 3424 x 3424 JPEG 2416 x 2416 JPEG 1712 x 1712 |
JPEG 4240 x 2832 JPEG 2768 x 1848 JPEG 2128 x 1416 JPEG 1376 x 920 JPEG 3776 x 2832 JPEG 2464 x 1848 JPEG 1888 x 1416 JPEG 1232 x 920 JPEG 4240 x 2348 JPEG 2768 x 1550 JPEG 2128 x 1200 JPEG 1376 x 776 JPEG 2832 x 2832 JPEG 1840 x 1840 JPEG 1408 x 1408 JPEG 912 x 912 |
| Video Capture | AVCHD - 1920 x 1080 - 60 fps AVCHD - 1920 x 1080 - 50 fps AVCHD - 1280 x 720 - 60 fps AVCHD - 1280 x 720 - 50 fps MJPEG - 848 x 480 - 30 fps MJPEG - 640 x 480 - 30 fps MJPEG - 320 x 240 - 30 fps |
XAVC HS - 3840 x 2160 p - 120 fps XAVC HS - 3840 x 2160 p - 60 fps XAVC HS - 3840 x 2160 p - 100 fps - 200Mbps XAVC HS - 3840 x 2160 p - 50 fps XAVC HS - 3840 x 2160 p - 24 fps XAVC S - 3840 x 2160 p - 120 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 - 100 fps XAVC S - 3840 x 2160 p - 50 fps XAVC S - 3840 x 2160 p - 25 fps XAVC S HD - 1920 x 1080 p - 120 fps XAVC S HD - 1920 x 1080 p - 60 fps XAVC S HD - 1920 x 1080 p - 30 fps XAVC S HD - 1920 x 1080 p - 24 fps XAVC S HD - 1920 x 1080 p - 100 fps XAVC S HD - 1920 x 1080 p - 50 fps XAVC S HD - 1920 x 1080 p - 25 fps |
| BATTERY AND CHARGING | Panasonic Lumix G DMC-G3 | Sony Alpha7s III ILCE-7SM3 |
|---|
| Battery Type | Lithium Ion - manufacturer-specific | Sony NP-FZ100 Lithium Ion |
|---|---|---|
| Details | 1 x Li-ion rechargeable battery - 1010 mAh (included) | Sony NP-FZ100 Li-ion rechargeable battery - 2280 mAh (included) |
| Battery Life | - | Photo shooting - 510 shots (EVF on) Photo shooting - 600 shots (LCD Monitor on) Video recording - 80 minutes (EVF on) Video recording - 135 minutes (LCD Monitor on) |
| CONNECTIONS | Panasonic Lumix G DMC-G3 | Sony Alpha7s III ILCE-7SM3 |
|---|
| Interface | Composite video/audio, HDMI, USB 2.0 | HDMI, USB-C, Wireless LAN, NFC (Near Field Communication), Bluetooth 5.0 |
|---|---|---|
| Connectivity Features | - | Remote control via mobile devices, Wireless Image Transfer, PC Remote functions via Wi-Fi |
| Print Standard | Direct print, DPOF support, 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 Remote control |
USB (USB Type-C) HDMI output (19 pin HDMI Type A) Microphone (mini-phone stereo 3.5 mm) Headphones (mini-phone stereo 3.5 mm) |
| FEATURES | Panasonic Lumix G DMC-G3 | Sony Alpha7s III ILCE-7SM3 |
|---|
| Self-Timer Delay | 10 sec, 2sec | 10 sec, 2sec, 5 sec |
|---|---|---|
| Continuous Shooting Speed | 2 frames per second, 4 frames per second, 3 frames per second, 20 frames per second (4MP) | 8 frames per second, 3 frames per second, 10 frames per second, 6 frames per second |
| Additional Features | Audio recording, built-in speaker, RGB primary colour filter, date/time stamp, digital image rotation, histogram display, in-camera red-eye removal, cropping an image, resizing an image, Scene Detection Technology, Intelligent Scene Selector, Object Detection, AF/AE tracking, Intelligent Resolution Technology, face detection, Motion Detection Technology, Full-time Live View, Face Recognition, Dolby Digital Stereo Creator, Intelligent Auto (iA), Intelligent D-range Control | Built-in speaker, digital image rotation, camera orientation detection, histogram display, shadow point display, interval shooting mode, highlight point display, Dynamic Range Optimizer, USB charging, built-in help guide, Chromatic Aberration Compensation (CAC), HDR image enhancement technology, Intelligent AUTO (iAUTO), fast motion recording, Lens Distortion Compensation (LDC), noise reduction over long exposures, high ISO speed noise reduction, silent shooting, BRAVIA Sync function, PhotoTV HD, GPS via mobile, slow motion recording, peripheral shading correction, anti-flicker, Hybrid Log-Gamma (HLG) recording |
| OTHERS | Panasonic Lumix G DMC-G3 | Sony Alpha7s III ILCE-7SM3 |
|---|
| Included Accessories | Battery charger, body cap, shoulder strap, USB cable, pen stylus, audio / video cable | - |
|---|---|---|
| Software | Drivers & Utilities, SILKYPIX Developer Studio 3.1 SE, Loilo Super Loiloscope, Panasonic PHOTOfunSTUDIO 6.2 HD Edition | - |
| Max Operating Temperature | 40 °C | 40 °C |
| Min Operating Temperature | 0 °C | 0 °C |
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