In depth comparison and review of Sony Alpha7R III ILCE-7RM3 and Fujifilm GFX 100S. 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 Alpha7R III ILCE-7RM3 | Fujifilm GFX 100S |
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| Product Type | Digital camera - 4K - mirrorless system | Digital camera - 4K - mirrorless system with movie recording |
|---|---|---|
| Lens Included | Body only | Body only |
| Height | 9.56 cm | 10.42 cm |
| Width | 12.69 cm | 15 cm |
| Depth | 7.37 cm | 8.72 cm |
| Weight | 572 g | 821 g |
| Weight Details | Camera body only: 572 g Camera with battery and memory card: 675 g |
Camera body only: 821 g Camera with battery and memory card: 900 g |
| Body Material | Magnesium alloy | Magnesium alloy |
| Enclosure Colour | Black | Black |
| Protection | Dust-resistant, moisture-resistant | Weatherproof, freezeproof, dust-resistant |
| Digital Zoom | 4x | - |
| SENSOR | Sony Alpha7R III ILCE-7RM3 | Fujifilm GFX 100S |
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| Sensor Resolution | 42.4 Megapixel | 102 Megapixel |
|---|---|---|
| Optical Sensor Type | Exmor R CMOS | CMOS |
| Total Pixels | 43,600,000 pixels | - |
| Effective Sensor Resolution | 42,400,000 pixels | 102,000,000 pixels |
| Optical Sensor Size | Full Frame (35.9 x 24 mm) | Medium Format (43.8 x 32.9 mm) |
| Frame Rate (Max Resolution) | 30 fps | 30 fps |
| Sensor Dust Reduction | Yes | Yes |
| Sensor Features | Dust Reduction (image sensor vibration), Anti-Dust coating | Ultrasonic vibration |
| Image Stabiliser | Optical (5-axis Steady Shot) | Optical (5-axis image sensor shift mechanism) |
| Built-in Optical Image Stabiliser | Yes | - |
| Sensors | Digital level metre | - |
| PROCESSOR | Sony Alpha7R III ILCE-7RM3 | Fujifilm GFX 100S |
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| Image Processor | BIONZ X | X-Processor 4 |
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| LENS | Sony Alpha7R III ILCE-7RM3 | Fujifilm GFX 100S |
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| Lens Mounting Type | Sony E-mount | Fujifilm G Mount |
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| FOCUSING | Sony Alpha7R III ILCE-7RM3 | Fujifilm GFX 100S |
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| Auto Focus | TTL contrast and phase detection | TTL contrast and phase detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | 399 | - |
| Auto Focus Features | Focus Peaking function, Predictive Focus Control | - |
| AE/AF Control | Flex Focus Point, Eye detection AF, Zone AF | Subject-tracking AF, Eye detection AF, Zone AF |
| Face Detection | Eye Detect AF, face-priority AF function | Eye Detect AF, face-priority AF function |
| VIEWFINDER | Sony Alpha7R III ILCE-7RM3 | Fujifilm GFX 100S |
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| Viewfinder Type | Electronic - OLED | Electronic - OLED |
|---|---|---|
| Viewfinder Colour Support | Colour | Colour |
| Viewfinder Diagonal Size | 0.5" | 0.5" |
| Viewfinder Resolution | 3,686,400 pixels | 3,690,000 pixels |
| Optical Viewfinder Field Coverage | 100% | 100% |
| Optical Viewfinder Magnification | 0.78x | 0.77x |
| Optical Viewfinder Dioptric Correction Range | -4 to +3 | -4 to +2 |
| Features | Viewfinder brightness control, colour temperature control | Viewfinder brightness control, auto eye sensor |
| EXPOSURE & WHITE BALANCE | Sony Alpha7R III ILCE-7RM3 | Fujifilm GFX 100S |
|---|
| ISO (Max) | 102400 | 102400 |
|---|---|---|
| Extended ISO (Max) | - | 25600 (H1), 51200 (H2), 102400 (H3) |
| Extended ISO (Min) | - | 50 |
| Light Sensitivity | ISO 50, ISO 102400, ISO auto (100-12800), ISO 100-32000 | ISO 50, ISO auto, ISO 102400, ISO 51200, ISO 25600, ISO 100-12800 |
| Exposure Metering | Multi-segment, centre-weighted, spot | Multi-segment, centre-weighted, spot, average |
| Exposure Metering Zones | 1200 | 256 |
| Exposure Modes | Bulb, automatic, manual, aperture-priority, shutter-priority | Automatic, manual, aperture-priority, shutter-priority |
| Bracketing Modes | Dynamic Range Bracketing, white balance bracketing | Dynamic Range Bracketing, Film Simulation Bracketing, focus bracketing, ISO sensitivity bracketing, white balance bracketing |
| Special Effects | Black & White, Sepia, Neutral, Vivid, sunset, landscape, portrait, clear, deep, light, autumn leaves, Retro, partial colour, Toy camera, Posterisation, High contrast monochrome, Pop Colour, Soft High-key, Night Scene, Standard, Style Box, Posterisation (B/W) | Chrome, Film Simulation, Grainy Film |
| White Balance | Custom, automatic, presets | Custom, automatic, presets |
| White Balance Presets | Incandescent, cloudy, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (daylight), fluorescent light (warm white), Underwater, 2500K - 9900K, fluorescent light (daylight white) | Incandescent, fluorescent, daylight, shade, fluorescent light (cool white), fluorescent light (warm white), Underwater |
| Shutter Type | - | Mechanical, electronic |
| Max Shutter Speed | 1/8000 sec | 1/16000 sec |
| Min Shutter Speed | 30 sec | 30 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, 9 steps in 1/3, 1/2, 2/3, 1, 2 or 3 EV steps | 2, 3, 5, 7, 9 steps in 1/3 - 3 EV steps |
| White Balance Bracketing | Yes | Yes |
| X-sync Speed | 1/250sec | 1/125sec |
| Exposure Range | EV -3-20 (ISO 100) | - |
| DISPLAY | Sony Alpha7R III ILCE-7RM3 | Fujifilm GFX 100S |
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| Type | 3" LCD display | 3.2" LCD display |
|---|---|---|
| Touch Screen | Yes | Yes |
| Display Format | 1,440,000 pixels | 2,360,000 pixels |
| Display Form Factor | Folding | Folding |
| Display Features | Display brightness control, Peaking AF display, Touch AF | Display brightness control, display colour control |
| FLASH | Sony Alpha7R III ILCE-7RM3 | Fujifilm GFX 100S |
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| Features | AF illuminator | - |
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| VIDEOGRAPHY / CAMCORDER | Sony Alpha7R III ILCE-7RM3 | Fujifilm GFX 100S |
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| Digital Video Format | AVCHD, XAVC S | H.264, HEVC, H.265 |
|---|---|---|
| Image Recording Format | JPEG, RAW, RAW + JPEG | JPEG, RAW, RAW + JPEG |
| Max Video Resolution | 3840 x 2160 | 4096 x 2160 |
| Audio Signal Format | Dolby Digital AC-3 (2 channel), Linear PCM | - |
| Microphone Operation Mode | Stereo | - |
| MEMORY | Sony Alpha7R III ILCE-7RM3 | Fujifilm GFX 100S |
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| Memory Card Slot | Memory Stick PRO Duo card, SD card | SD card |
|---|---|---|
| Supported Memory Cards | 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 | 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 |
| Memory Card Included | No | No |
| Memory Card Max Supported Size | - | 2 TB |
| Image Storage | 7952 x 5304 7952 x 4472 5168 x 3448 5168 x 2912 3984 x 2656 3984 x 2240 2592 x 1728 2592 x 1456 |
11648 x 8736 11648 x 7768 11648 x 6552 8736 x 8736 11648 x 4304 10928 x 8736 10192 x 8736 8256 x 6192 8256 x 5504 8256 x 4640 6192 x 6192 8256 x 3048 7744 x 6192 7232 x 6192 4000 x 3000 4000 x 2664 4000 x 2248 2992 x 2992 4000 x 1480 3744 x 3000 3504 x 3000 |
| Video Capture | AVCHD - 1920 x 1080 i - 60 fps - 24Mbps AVCHD - 1920 x 1080 i - 60 fps - 17Mbps AVCHD - 1920 x 1080 i - 50 fps - 24Mbps AVCHD - 1920 x 1080 i - 50 fps - 17Mbps 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 - 60 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 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 XAVC S - 1920 x 1080 p - 50 fps - 25Mbps XAVC S - 1920 x 1080 p - 25 fps - 16Mbps |
4096 x 2160 p 3840 x 2160 p 2048 x 1080 p 1920 x 1080 p |
| BATTERY AND CHARGING | Sony Alpha7R III ILCE-7RM3 | Fujifilm GFX 100S |
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| Battery Type | Sony NP-FZ100 Lithium Ion | Fujifilm NP-W235 Lithium Ion |
|---|---|---|
| Details | Sony NP-FZ100 Li-ion rechargeable battery - 2280 mAh (included) | Fujifilm NP-W235 Li-ion rechargeable battery (included) |
| Battery Life | Photo shooting - 650 shots (LCD Monitor on) Photo shooting - 530 shots (EVF on) Video recording - 1.92 hours (LCD Monitor on) Video recording - 1.67 hours (EVF on) |
Photo shooting - 460 shots Video recording - 95 minutes (4K resolution) |
| CONNECTIONS | Sony Alpha7R III ILCE-7RM3 | Fujifilm GFX 100S |
|---|
| Interface | HDMI, USB 2.0, USB-C, IEEE 802.11b/g/n, NFC (Near Field Communication), Bluetooth 4.1 | HDMI, USB-C, IEEE 802.11b/g/n, Bluetooth 4.2 |
|---|---|---|
| Connectivity Features | Remote live view | Remote control via mobile devices, Wireless Image Transfer |
| Print Standard | DPOF support, Exif Print support, PRINT Image Matching | Exif Print support |
| Flash Terminal | Hot shoe, PC terminal | Hot shoe |
| Connector Type | USB 2.0 (5 pin Micro-USB Type B) 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) |
USB 3.2 Gen 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) Remote control (sub-mini phone 2.5 mm) |
| FEATURES | Sony Alpha7R III ILCE-7RM3 | Fujifilm GFX 100S |
|---|
| 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, 5 frames per second, 2.9 frames per second |
| HDR Mode | HDR Movie mode | - |
| Additional Features | Built-in speaker, sharpness control, camera orientation detection, histogram display, saturation control, contrast control, Dynamic Range Optimizer, USB charging, built-in help guide, Dolby Digital Stereo Creator, x.v.Colour technology, HDR image enhancement technology, Clear Image Zoom, noise reduction over long exposures, Lens Distortion Correction, silent shooting, GPS via mobile, S-Log2 gamma setting, Pixel Shift Resolution technology, peripheral shading correction, chromatic aberration correction, anti-flicker, Hybrid Log-Gamma (HLG) recording, S-Log3 gamma setting | Auto power save, date/time stamp, histogram display, interval shooting mode, in-camera RAW processing |
| OTHERS | Sony Alpha7R III ILCE-7RM3 | Fujifilm GFX 100S |
|---|
| Included Accessories | Eyepiece cover, battery charger, body cap, shoulder strap, shoe cap, cable protector, USB-C cable | Body cap, shoulder strap, AC power adaptor, USB cable, power plug adapter, cable protector, hot shoe cover |
|---|---|---|
| Max Operating Temperature | 40 °C | 40 °C |
| Min Operating Temperature | 0 °C | -10 °C |
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