In depth comparison and review of Sony Alpha7s III ILCE-7SM3 and Panasonic Lumix G DC-GX9 + 12-32mm. 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 | Sony Alpha7s III ILCE-7SM3 | Panasonic Lumix G DC-GX9 + 12-32mm |
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| Product Type | Digital camera - 4K - mirrorless system | Digital camera - 4K - mirrorless system |
|---|---|---|
| Lens Included | Body only | 12-32mm lens |
| Height | 9.69 cm | 7.21 cm |
| Width | 12.89 cm | 12.4 cm |
| Depth | 8.08 cm | 4.68 cm |
| Weight | 699 g | 407 g |
| Weight Details | Camera with battery and memory card: 699 g | Camera body only: 407 g Camera with battery and memory card: 450 g |
| Body Material | Magnesium alloy | - |
| Enclosure Colour | - | Silver |
| Protection | Dust-resistant, moisture-resistant | - |
| Digital Zoom | 4x | - |
| Optical Zoom | - | 2.7x |
| SENSOR | Sony Alpha7s III ILCE-7SM3 | Panasonic Lumix G DC-GX9 + 12-32mm |
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| Sensor Resolution | 12.1 Megapixel | 20.3 Megapixel |
|---|---|---|
| Optical Sensor Type | Exmor R CMOS | Live MOS |
| Total Pixels | 12,900,000 pixels | 21,770,000 pixels |
| Effective Sensor Resolution | 12,100,000 pixels | 20,300,000 pixels |
| Optical Sensor Size | Full Frame (35.6 x 23.8 mm) | Four Thirds (17.3 x 13.0 mm) |
| Frame Rate (Max Resolution) | 120 fps | 30 fps |
| Sensor Dust Reduction | Yes | Yes |
| Sensor Features | Dust Reduction (image sensor vibration), Anti-Dust coating | Supersonic Wave Filter (SWF), OLPF-less architecture |
| Image Stabiliser | Optical (5-axis Steady Shot) | Optical (5-Axis Dual I.S. 2.0) |
| Built-in Optical Image Stabiliser | Yes | Yes |
| Sensors | Digital level metre | Digital level metre |
| PROCESSOR | Sony Alpha7s III ILCE-7SM3 | Panasonic Lumix G DC-GX9 + 12-32mm |
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| Image Processor | BIONZ XR | Venus Engine |
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| LENS | Sony Alpha7s III ILCE-7SM3 | Panasonic Lumix G DC-GX9 + 12-32mm |
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| Type | - | Zoom lens - 2.7x zoom - 12 - 32 mm - f/3.5-5.6 G VARIO ASPH |
|---|---|---|
| Focal Length Equivalent to 35mm Camera | - | 24 - 64mm |
| Focus Adjustment | - | Automatic, manual |
| Min Focus Distance | - | 20 cm |
| Max View Angle | - | 84 degree(s) |
| Zoom Adjustment | - | Manual |
| Lens Construction | - | 7 groups / 8 elements |
| Filter Size | - | 37 mm |
| Lens Mounting Type | Sony E-mount | Micro Four Thirds |
| Features | - | ED glass, aspherical lens |
| FOCUSING | Sony Alpha7s III ILCE-7SM3 | Panasonic Lumix G DC-GX9 + 12-32mm |
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| Auto Focus | TTL contrast and phase detection | TTL contrast detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | 759 | 49 |
| Auto Focus Features | Focus Peaking function, Predictive Focus Control | Focus Peaking function, Depth From Defocus (DFD) technology, Manual Focus Assist |
| AE/AF Control | Flex Focus Point, Face-priority AF, Subject-tracking AF, Eye detection AF | Face-priority AF, Subject-tracking AF, Touch Area AF, Eye detection AF, Pinpoint AF |
| Face Detection | Face Recognition, face-priority AF function | Eye Detect AF, face-priority AF function |
| VIEWFINDER | Sony Alpha7s III ILCE-7SM3 | Panasonic Lumix G DC-GX9 + 12-32mm |
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| Viewfinder Type | Built-in - electronic | Electronic - LCD |
|---|---|---|
| Viewfinder Colour Support | Colour | Colour |
| Viewfinder Diagonal Size | 0.64" | - |
| Viewfinder Resolution | 9,437,184 pixels | - |
| Optical Viewfinder Field Coverage | 100% | - |
| Optical Viewfinder Magnification | 0.9x | - |
| Optical Viewfinder Dioptric Correction Range | -4 to +3 | - |
| Field of View Crop Factor | - | 2 |
| EXPOSURE & WHITE BALANCE | Sony Alpha7s III ILCE-7SM3 | Panasonic Lumix G DC-GX9 + 12-32mm |
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| ISO (Max) | 409600 | 25600 |
|---|---|---|
| Native ISO | - | 200-12800 |
| Extended ISO (Max) | 409600 | 25600 |
| Extended ISO (Min) | 40 | 100 |
| Light Sensitivity | ISO 204800, ISO 409600, ISO 80-102400, ISO 40 | ISO 100, ISO 800, ISO 400, ISO 200, ISO 1600, ISO 6400, ISO 3200, ISO auto, ISO 12800, ISO 25600 |
| Exposure Metering | Multi-segment, centre-weighted, spot | Multi-segment, centre-weighted, spot |
| Exposure Metering Zones | 1200 | 1728 |
| Exposure Modes | Bulb, automatic, manual, aperture-priority, shutter-priority | Programme, manual, aperture-priority, shutter-priority |
| Bracketing Modes | Dynamic Range Bracketing | Focus bracketing, white balance bracketing, aperture bracketing |
| White Balance | Custom, automatic, presets | Custom, automatic, presets |
| White Balance Presets | Incandescent, fluorescent, cloudy, Flash, daylight, shade, Underwater, 2500K - 9900K | Incandescent, cloudy, Flash, daylight, shade, 2500K - 10000K (100K steps) |
| Shutter Type | Mechanical electronically-controlled | Mechanical |
| Max Shutter Speed | 1/8000 sec | 1/16000 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 1/3 EV steps |
| Auto Exposure Bracketing | 3, 5 or 9 steps | 3, 5, 7 steps in 1/3, 2/3 or 1 EV steps |
| White Balance Bracketing | - | Yes |
| X-sync Speed | 1/250sec | 1/200sec |
| Exposure Range | EV -3-20 (ISO 100) | EV 0-18 (ISO 100) |
| Retouch | - | Clear Retouch function |
| DISPLAY | Sony Alpha7s III ILCE-7SM3 | Panasonic Lumix G DC-GX9 + 12-32mm |
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| Type | 3" LCD display | 3" LCD display |
|---|---|---|
| Touch Screen | Yes | - |
| Display Format | 1,440,000 pixels | 1,240,000 pixels |
| Display Form Factor | Folding | Folding |
| Display Features | Display brightness control | Display brightness control, display colour control, display contrast control, display saturation control |
| FLASH | Sony Alpha7s III ILCE-7SM3 | Panasonic Lumix G DC-GX9 + 12-32mm |
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| Camera Flash | - | Pop-up flash |
|---|---|---|
| Guide Number (m / ISO 100) | - | 4.2 |
| Flash Modes | - | Forced mode, auto mode, red-eye reduction, slow sync |
| Features | - | Flash +/- compensation, wireless off-camera control |
| VIDEOGRAPHY / CAMCORDER | Sony Alpha7s III ILCE-7SM3 | Panasonic Lumix G DC-GX9 + 12-32mm |
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| Digital Video Format | H.264, XAVC S, H.265, XAVC HS | AVCHD, H.264 |
|---|---|---|
| Image Recording Format | JPEG, RAW, RAW + JPEG | JPEG, RAW, RAW + JPEG |
| Max Video Resolution | 3840 x 2160 | 3840 x 2160 |
| Audio Signal Format | AAC | Dolby Digital AC-3 (2 channel), AAC |
| Microphone Operation Mode | Stereo | Stereo |
| Microphone Features | - | Wind noise reduction |
| MEMORY | Sony Alpha7s III ILCE-7SM3 | Panasonic Lumix G DC-GX9 + 12-32mm |
|---|
| Memory Card Slot | Dual SD card, dual 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, SDHC UHS-II Memory Card, SDXC UHS-II Memory Card, CFexpress | 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 | 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 |
5184 x 3888 5184 x 3456 5184 x 2920 3712 x 2784 3712 x 2480 3840 x 2160 2624 x 1968 2624 x 1752 1920 x 1080 3888 x 3888 2784 x 2784 1968 x 1968 3328 x 2496 - 4K PHOTO 3504 x 2336 - 4K PHOTO 3840 x 2160 - 4K PHOTO 2880 x 2880 - 4K PHOTO |
| Video Capture | 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 |
H.264 - 3840 x 2160 p - 30 fps - 100Mbps H.264 - 3840 x 2160 p - 25 fps - 100Mbps H.264 - 3840 x 2160 p - 24 fps - 100Mbps AVCHD - 1920 x 1080 p - 50 fps - 28Mbps AVCHD - 1920 x 1080 i - 50 fps - 24Mbps AVCHD - 1920 x 1080 i - 50 fps - 17Mbps AVCHD - 1920 x 1080 p - 24 fps - 24Mbps H.264 - 1920 x 1080 p - 60 fps - 28Mbps H.264 - 1920 x 1080 p - 50 fps - 28Mbps H.264 - 1920 x 1080 p - 30 fps - 20Mbps H.264 - 1920 x 1080 p - 25 fps - 20Mbps H.264 - 1280 x 720 p - 30 fps - 10Mbps H.264 - 1280 x 720 p - 25 fps - 10Mbps |
| BATTERY AND CHARGING | Sony Alpha7s III ILCE-7SM3 | Panasonic Lumix G DC-GX9 + 12-32mm |
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| Battery Type | Sony NP-FZ100 Lithium Ion | Lithium Ion - manufacturer-specific |
|---|---|---|
| Details | Sony NP-FZ100 Li-ion rechargeable battery - 2280 mAh (included) | Li-ion rechargeable battery - 1025 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) |
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| CONNECTIONS | Sony Alpha7s III ILCE-7SM3 | Panasonic Lumix G DC-GX9 + 12-32mm |
|---|
| Interface | HDMI, USB-C, Wireless LAN, NFC (Near Field Communication), Bluetooth 5.0 | HDMI, USB 2.0, IEEE 802.11b/g/n, Bluetooth 4.2 |
|---|---|---|
| Connectivity Features | Remote control via mobile devices, Wireless Image Transfer, PC Remote functions via Wi-Fi | Remote control via mobile devices, remote live view, QR code scanning |
| Print Standard | Exif Print support, PRINT Image Matching | Direct print, Exif Print support, PictBridge support |
| Flash Terminal | Hot shoe | Hot shoe |
| Connector Type | 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) |
USB 2.0 (5 pin Micro-USB Type B) HDMI output (19 pin micro HDMI Type D) |
| FEATURES | Sony Alpha7s III ILCE-7SM3 | Panasonic Lumix G DC-GX9 + 12-32mm |
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| Self-Timer Delay | 10 sec, 2sec, 5 sec | 10 sec, 2sec |
|---|---|---|
| Continuous Shooting Speed | 8 frames per second, 3 frames per second, 10 frames per second, 6 frames per second | 2 frames per second, 9 frames per second, 6 frames per second |
| Additional Features | 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 | Built-in speaker, digital image rotation, histogram display, AE lock, AF lock, cropping an image, resizing an image, highlight point display, USB charging, in-camera RAW processing, Panorama Capture, text stamp, Time-Lapse recording, Light Speed AF, primary colour filter, Focus Stacking, Post Focus function |
| OTHERS | Sony Alpha7s III ILCE-7SM3 | Panasonic Lumix G DC-GX9 + 12-32mm |
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| Included Accessories | - | Body cap, lens cap, shoulder strap, AC power adaptor, USB cable, hot shoe cap |
|---|---|---|
| Software | - | Panasonic PHOTOfunSTUDIO 10.0 Premium Edition |
| Max Operating Temperature | 40 °C | 40 °C |
| Min Operating Temperature | 0 °C | 0 °C |
| Service & Support | - | Limited warranty - 5 years |
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