This independent review site earns affiliate commission (at no cost to you) when provided links are used to make any purchase
Sony Alpha 7 III Compared to the Sony Alpha 7R III, IIIA
| Specifications | Sony Alpha 7 III | Sony Alpha 7R III, IIIA |
|---|---|---|
 |
 | |
| Year Introduced | 2018 | 2017 |
| Megapixels | 24.2 | 42.4 |
| Total Pixels | 25.3 | 43.6 |
| Sensor Size | 35.6 × 23.8mm | 35.9 x 24.0mm |
| Pixel Dimensions | 6000 x 4000 | 7952 x 5304 |
| Pixel Size | 5.93µm | 4.51µm |
| Diffraction-Limited Aperture | f/9.6 | f/7.3 |
| Sensor Readout Speed (ms) | ||
| Sensor Stabilization | Y | Y |
| Lens Mount | Sony E-mount | Sony E-mount |
| FOVCF | 1.0x | 1.0x |
| Image Processor | BIONZ X | BIONZ X |
| Autofocus | ||
| Type | Fast Hybrid AF (phase-detection AF/contrast-detection AF) | Fast Hybrid AF (phase-detection AF/contrast-detection AF) |
| Points | 35 mm full frame: 693 points (phase-detection AF), APS-C mode with full frame lens: 299 points (phase-detection AF), with APS-C lens: 221 points (phase-detection AF) / 425 points (contrast-detection AF) | 35 mm full frame: 399 points (phase-detection AF), APS-C mode with full frame lens: 323 points (phase-detection AF), with APS-C lens: 255 points (phase-detection AF) / 425 points (contrast-detection AF) |
| Working Range | EV -3 – 20 (ISO 100 equivalent with F2.0 lens attached) | EV -3 – 20 (ISO 100 equivalent with F2.0 lens attached) |
| Point Selection | Wide (693 points (phase-detection AF), 425 points (contrast-detection AF)) / Zone / Center / Flexible Spot (S/M/L) /Expanded Flexible Spot/ Lock-on AF (Wide / Zone / Center / Flexible Spot (S/M/L)/Expanded Flexible Spot), Eye AF | Wide (399 points (phase-detection AF), 425 points (contrast-detection AF)) / Zone / Center / Flexible Spot (S/M/L) /Expanded Flexible Spot/ Lock-on AF (Wide / Zone / Center / Flexible Spot (S/M/L)/Expanded Flexible Spot) |
| Microadjustment | Yes | Yes |
| Touch & Drag AF | Y | |
| Eye Detection AF | Y | |
| Focus Bracketing/Stacking | ||
| Exposure Control | ||
| Metering Modes | 1200-zone evaluative metering | 1200-zone evaluative metering |
| Metering Range | EV -3 – 20 (at ISO100 equivalent with F2.0 lens attached) | EV -3 – 20 (at ISO100 equivalent with F2.0 lens attached) |
| Exposure Comp | +/- 5.0EV (1/3 EV, 1/2 EV steps selectable) (with exposure compensation dial: +/- 3EV (1/3 EV steps)) | +/- 5.0EV(1/3 EV, 1/2 EV steps selectable), (with exposure compensation dial: +/- 3EV (1/3 EV steps)) |
| AEB | Bracket: Cont., Bracket: Single, 3/5/9 frames selectable. With 3 or 5 frames, in 1/3, 1/2, 2/3, 1.0, 2.0, or 3.0 EV increments, with 9 frames, in 1/3, 1/2, 2/3, or 1.0 EV increments | Bracket: Cont., Bracket: Single, 3/5/9 frames selectable. With 3 or 5 frames, in 1/3, 1/2, 2/3, 1.0, 2.0, or 3.0 EV increments, with 9 frames, in 1/3, 1/2, 2/3, or 1.0 EV increments. |
| Light Flicker Mode | ||
| Intervalometer | ||
| ISO Sensitivity | Still images: ISO 100-51200 (ISO numbers from ISO 50 to ISO 204800 can be set as expanded ISO range.), AUTO (ISO 100-12800, selectable lower limit and upper limit), Movies: ISO 100-51200 equivalent (ISO numbers up to ISO 102400 can be set as expanded ISO range.), AUTO (ISO 100-12800, selectable lower limit and upper limit) | Still images: ISO 100-32000 (Expandable to ISO 50 to 102400), AUTO (ISO 100-12800, selectable lower limit and upper limit), Movies: ISO 100-32000 equivalent, AUTO (ISO 100-12800, selectable lower limit and upper limit) |
| Shutter Speed | Still images: 1/8000 to 30 s, Bulb, Movies: 1/8000 to 1/4 (1/3 steps), up to 1/60 in AUTO mode (up to 1/30 in Auto slow shutter mode) | 30 - 1/8000 sec, Bulb |
| Viewfinder | ||
| Type | 0.5" (1.3 cm) electronic, XGA OLED, 2.36 million dots | 0.5" (1.3 cm) electronic, Quad-VGA OLED, 3.69 million dots |
| Coverage | Approx. 100% | Approx. 100% |
| Magnification | Approx. 0.78x | Approx. 0.78x |
| Eyepoint | Approx. 23mm | Approx. 23mm |
| Information | Graphic Display, Display All Info, No Disp. Info, Digital Level Gauge, Histogram, For viewfinder, Monitor Off | Graphic Display, Display All Info, No Display Info, Digital Level Gauge, Histogram |
| DOF Preview | Yes (via Setting Effect) | Yes (via Setting Effect) |
| LCD | ||
| Type | 2.95" (7.5cm) TFT, Tilting, 921,600 dots, adjustable Up by approx. 107 degrees, Down by approx. 41 degrees | 2.95" (7.5cm) TFT, Tilting, 1,440,000 dots Revision A: 2,359,296 dots |
| Coating | ||
| Brightness Adj | Manual (5 steps between -2 and +2), Sunny Weather mode | Manual (5 steps between -2 and +2), Sunny Weather mode |
| Display Options | Graphic Display, Display All Info, No Disp. Info, Digital Level Gauge, Histogram, For viewfinder, Monitor Off | Graphic Display, Display All Info., No Disp. Info., Digital Level Gauge, Histogram, For viewfinder, Monitor Off |
| Flash | ||
| Built-in GN | N/A (ISO 100, meters) | N/A (ISO 100, meters) |
| Built-in Coverage | N/A | N/A |
| Built-in Recycle Time | N/A | N/A |
| Modes | Flash off, Autoflash, Fill-flash, Slow Sync., Rear Sync., Red-eye reduction (on/off selectable), Wireless, Hi-speed sync. | Flash off, Autoflash, Fill-flash, Slow Sync., Rear Sync., Red-eye reduction (on/off selectable), Wireless, Hi-speed sync. |
| X-Sync | 1/250 s | 1/250 s |
| Exposure Compensation | +/- 3.0 EV (switchable between 1/3 and 1/2 EV steps) | +/- 3.0 EV (switchable between 1/3 and 1/2 EV steps) |
| Hot Shoe/PC Terminal | Yes / No | Yes / Yes |
| External Flash Comp | Sony α System Flash | Sony α System Flash |
| Shooting | ||
| Shooting Modes | AUTO (iAuto), Programmed AE (P), Aperture priority (A), Shutter-speed priority (S), Manual (M), Movie (Programmed AE (P) / Aperture priority (A) / Shutter-speed priority (S) / Manual (M) ), Slow & Quick Motion (Programmed AE (P) / Aperture priority (A) / Shutter-speed priority (S) / Manual (M) ), Scene Selection | AUTO (iAuto), Programmed AE (P), Aperture priority (A), Shutter-speed priority (S), Manual (M), Movie (Programmed AE (P) / Aperture priority (A) / Shutter-speed priority (S) / Manual (M) ), Slow & Quick Motion (Programmed AE (P) / Aperture priority (A) / Shutter-speed priority (S) / Manual (M) ) |
| Picture Styles | Standard, Vivid, Neutral, Clear, Deep, Light, Portrait, Landscape, Sunset, Night Scene, Autumn leaves, Black & White, Sepia, Style Box (1-6), (Contrast (-3 to +3 steps), Saturation (-3 to +3 steps), Sharpness (-3 to +3 steps)) | Standard, Vivid, Neutral, Clear, Deep, Light, Portrait, Landscape, Sunset, Night Scene, Autumn leaves, Black & White, Sepia,Style Box(1-6), (Contrast (-3 to +3 steps), Saturation (-3 to +3 steps), Sharpness (-3 to +3 steps)) |
| Image Processing | Peripheral Shading, Chromatic Aberration, Distortion, Long exposure NR: On/Off, available at shutter speeds longer than 1 sec., High ISO NR: Normal/Low/Off | Peripheral Shading, Chromatic Aberration, & Distortion Correction Long exposure, High ISO & Multi Frame NR (Noise Reduction) |
| Abberration Corrections | ||
| Drive Modes | Single Shooting, Continuous shooting (Hi+/Hi/Mid/Lo selectable), Self-timer, Self-timer (Cont.), Bracket: Single, Bracket: Cont., White Balance bracket, DRO bracket | Single Shooting, Continuous shooting (Hi+/Hi/Mid/Lo selectable), Self-timer, Self-timer (Cont.), Bracket: Single, Bracket: Cont., White Balance bracket, DRO bracket |
| Continuous Shooting | Max Approx. 10 fps (speed maintained 40 RAW (Uncompressed) / 163 JPEG (Extra Fine)) | Max Approx. 10 fps (speed maintained 28 RAW / 76 JPEG) |
| Shutter Lag | 20ms | 20ms |
| Viewfinder Blackout | ||
| Live View | ||
| FrameRate | ||
| Focusing | AF-A (Automatic AF), AF-S (Single-shot AF), AF-C (Continuous AF), DMF (Direct Manual Focus), Manual Focus | AF-A (Automatic AF), AF-S (Single-shot AF), AF-C ( Continuous AF), DMF (Direct Manual Focus), Manual Focus |
| Metering | Multi-segment, Center-weighted, Spot, Spot Standard/Large, Entire Screen Avg., Highlight | Multi-segment, Center-weighted, Spot, Spot Standard/Large, Entire Screen Avg., Highlight |
| Display Options | Graphic Display, Display All Info., No Disp. Info., Digital Level Gauge, Histogram, For viewfinder, Monitor Off | Graphic Display, Display All Info., No Disp. Info., Digital Level Gauge, Histogram, For viewfinder, Monitor Off |
| File Information | ||
| Still ImageType | JPEG (DCF Ver. 2.0, Exif Ver.2.31, MPF Baseline compliant), RAW (Sony ARW 2.3 format) | JPEG (DCF Ver. 2.0, Exif Ver.2.31, MPF Baseline compliant), RAW (Sony ARW 2.3 format) |
| Image Size | 3:2 Ratio: L: 6000 x 4000 (24M), M: 3936 x 2624 (10M), S: 3008 x 2000 (6.0M), APS-C L: 3936 x 2624 (10M), M: 3008 x 2000 (6.0M), S: 1968 x 1312 (2.6M) 16:9 Ratio: L: 6000 x 3376 (20 M), M: 3936 x 2216 (8.7M), S: 3008 x 1688 (5.1M), APS-C L: 3936 x 2216 (8.7M), M: 3008 x 1688 (5.1M), S: 1968 x 1112 (2.2M) | 3:2 Ratio: L: 7,952 x 5,304 (42M), M: 5,168 x 3,448 (18M), S: 3,984 x 2,656 (11M), APS-C L: 5,168 x 3,448 (18M), M: 3,984 x 2,656 (11M), S: 2,592 x 1,728 (4.5M) 16:9 Ratio: L: 7,952 x 4,472 (36M), M: 5,168 x 2,912 (15M), S: 3,984 x 2,240 (8.9M), APS-C L: 5,168 x 2,912 (15M), M: 3,984 x 2,240 (8.9M), S: 2,592 x 1,456 (3.8M) |
| Movie Type | XAVC S: MPEG-4 AVC/H.264, AVCHD: MPEG-4 AVC/H.264 | XAVC S:MPEG-4 AVC/H.264, AVCHD: MPEG-4 AVC/H.264, MP4: MPEG-4 AVC/H.264 |
| Movie Size | XAVC S 4K (NTSC): 3840 x 2160 (30p/100 M, 24p/100 M, 30p/60 M, 24p/60 M), XAVC S HD: 1920 x 1080 (120p/100M, 120p/60M, 60p/50M, 30p/50M, 24p/50M, 60p/25M, 30p/16M), AVCHD: 1920 x 1080 (60i, 24M, FX, 60i, 17M, FH) XAVC S 4K (PAL): 3840 x 2160 (25p/100M, 25p/60M), XAVC S HD:1920 x 1080 (100p/100M, 100p/60M, 50p/50M, 25p/50M), AVCHD:1920 x 1080 (50i, 24M, FX, 50i, 17M, FH) | NTSC: XAVC S 4K: 3840 x 2160 (30p/100 Mbps, 24p/100 Mbps, 30p/60 Mbps, 24p/60 Mbps), XAVC S HD: 1920 x 1080 (120p/100 Mbps, 120p/60 Mpbs, 60p/50 Mbps, 30p/50 Mbps, 24p/50 Mbps, 60p/25 Mbps, 30p/16 Mbps), AVCHD: 1920 x 1080 (60i, 24 M, FX & 60i, 17 M, FH) |
| Movie Length | Max duration approx. 29min | Max duration approx. 29min |
| Other Information | ||
| Wireless Features | Built-in Wi-Fi, Bluetooth and NFC | Built-in Wi-Fi, NFC & Bluetooth |
| GPS | ||
| Custom Functions | ||
| LCD Panel / Illumination | No / No | No / No |
| Water & Dust Resistance | Yes | Yes |
| Sound Memo | No | No |
| Interface | ||
| Computer Interface | Super Speed USB (Micro USB connector) | USB Type-C SuperSpeed (USB 3.1 Gen 1) Revision A: SuperSpeed USB 5 Gbps (USB 3.2) |
| Other Interface | HDMI micro connector (Type-D) out, External Microphone In / Line In (Stereo mini jack), Headphone socket (Stereo mini jack) | HDMI micro connector (Type-D) out, External Microphone In / Line In (Stereo mini jack), Headphone socket (Stereo mini jack) |
| Memory | ||
| Memory Type | Memory Stick PRO Duo/PRO HG-Duo/Micro M2, SD/SDHC/SDXC (UHS-I/II) | Memory Stick PRO Duo/PRO HG-Duo/Micro M2, SD/SDHC/SDXC |
| Batteries & Power | ||
| Battery | Rechargeable NP-FZ100 | Rechargeable NP-FZ100 |
| Battery Life | Approx. 610 shots (Viewfinder) / approx. 710 shots (LCD monitor) | Approx. 530 shots (Viewfinder) / approx. 650 shots (LCD monitor) |
| Power Supply Battery Chargers | AC-UUD12 AC Adapter, BC-QZ1 Battery Charger | AC-UUD12 AC Adapter, BC-QZ1 Battery Charger |
| Physical Specs | ||
| Body Materials | Magnesium Alloy body covers | Magnesium Alloy body covers |
| Shutter Durability Rating | 500,000 | 500,000 |
| Operating Environment | 32–104°F / 0–40°C | 32–104°F / 0–40°C |
| Dimensions Inches | 5.0 x 3.9 x 3.0" (126.9 x 95.6 x 73.7mm) | 5.0 x 3.88 x 3.0" (126.9 x 95.6 x 73.7mm) |
| CIPA Weight | 23 oz (650g) | 23.2 oz (657g) |
| Accessories | ||
| Viewfinder | ||
| Wireless File Transmitter | Built-in | Built-in |
| Compatible Lenses | Sony E-Mount | Sony E-Mount |
| Battery Grip | VG-C3EM Buy ► | VG-C3EM Buy ► |
| Remote | Sony Remote Control with Multi-terminal cable, Compatible infrared remote | Sony Remote Control with Multi-terminal cable, Compatible infrared remote |
| Other | ||
| Review | Sony Alpha 7 III | Sony Alpha 7R III, IIIA |
Buy ► 
|
Buy ►
| |
| Rent ► | Rent ► | |
Recommended Retailers
- B&H Photo(strongly recommended)
- Sony
- Adorama
- Amazon.com
Wex Photographic
Camera Canada- Check the used inventory at
B&H | KEH | Adorama | MPB
Rent it Here
Can you help right now?
Please share this page!
