Sony FX3 vs A7c
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Sony A7c vs Sony FX3 - Which one to choose and why?
Why choose the Sony FX3?
Newer camera
March 2021 vs. September 2020
Higher ISO sensitivity
102 400 vs. 51 200
More cards available
2 vs. 1
Better processor
BIONZ XR vs. BIONZ X
Higher max speed (mech.)
1/8 000s vs. 1/4 000s
Better screen resolution
1.44 M-dot vs. 0.92 M-dot
More sensitive low-light sensor
-6 EV vs. -4 EV
More Focus points
759 vs. 693
Higher max video resolution
4K UHD 120 fps vs. 4K UHD 30 fps
Why choose the Sony A7c?
More megapixels
24.2Mp vs. 12.1Mp
Cheaper body
0$ / 1359£ / 1 599€ vs. 3 700$ / 3994£ / 4 699€
Tropicalized body
Yes vs. No
Camera 207g lighter
1.12 lb / 508 g vs. 1.58 lb / 715 g
More compact
124×71×60 mm vs. 130×78×85 mm
38% smaller body
32.22 in3 / 528 cm3 vs. 52.11 in3 / 854 cm3
Larger buffer
45 images vs. images
Has a viewfinder
2.36 M-dot vs. -
In September 2023, Sony decided to release the Sony A7C II, a lightweight evolution of this camera, especially in terms of video (60i/s).
Technical specifications - Sony FX3 vs Sony A7c
General
| Sony FX3 | Sony A7c | ||
Release Date | March 2021 | VS | September 2020 |
Mount | FE | VS | FE |
Definition | 12.1 Mp | VS | 24.2 Mp |
Sensor Size | Full Frame | VS | Full Frame |
Image Stabilization | Yes | VS | Yes |
ISO Sensitivity | 80 - 102 400 | VS | 100 - 51 200 |
Extended ISO | 40 - 409 600 | VS | 50 - 204 800 |
Card Slots | 2 | VS | 1 |
Card Type | 1 x SD (UHS-II) 1 x CF Express Type A | VS | 1 x SD (UHS-II) |
Processor | BIONZ XR | VS | BIONZ X |
Recommended Price | 3 700$ / 3994£ / 4 699€ | VS | 0$ / 1359£ / 1 599€ |
Viewfinder Features
| Sony FX3 | Sony A7c | ||
Resolution | - | VS | 2.36 M-dot |
Magnification | - | VS | 0.59x |
Autofocus Features
| Sony FX3 | Sony A7c | ||
Sensibilidad AF | -6 / 20 EV | VS | -4 / 20 EV |
Number of Focus Points | 759 | VS | 693 |
Video
| Sony FX3 | Sony A7c | ||
Maximum Resolution | 4K UHD 120 i/s 1080p 240 i/s | VS | 4K UHD 30 i/s 1080p 120 i/s |
Recording Format | VS | ||
Recording Time Limit | 780 min | VS | 780 min |
DxO Score
| Sony FX3 | Sony A7c | ||
General | - | VS | 95 |
Portrait | - | VS | 25.0 |
Landscape | - | VS | 14.7 |
Sports | - | VS | 3 407 |
Physical Characteristics
| Sony FX3 | Sony A7c | ||
Weather-Sealed | No | VS | Yes |
Battery Type | NP-FZ100 | VS | NP-FZ100 |
Weight | 1.58 lb / 715 g | VS | 1.12 lb / 508 g |
Dimensions (W×H×D)
| 5.1 × 3.1 × 3.3" 130 × 78 × 85 mm | VS | 4.9 × 2.8 × 2.4" 124 × 71 × 60 mm |
Volume | 52.11 in3 / 854 cm3 | VS | 32.22 in3 / 528 cm3 |
Viewfinder Battery Life
| - | VS | 680 images |
LCD Battery Life | 580 images | VS | 740 images |
Built-in Flash
| No | VS | No |
Maximum Flash Sync Speed | 1/250s | VS | 1/160s |
Min. Shutter Speed | 30s | VS | 30s |
Max. Shutter Speed (Mechanical) | 1/8 000s | VS | 1/4 000s |
Max. Shutter Speed (Electronic) | 1/8 000s | VS | 1/8 000s |
Max. Burst Rate (Mechanical) | 10 fps | VS | 10 fps |
Max. Burst Rate (Electronic) | 10 fps | VS | 10 fps |
RAW Buffer | 0 images | VS | 45 images |
Screen Features
| Sony FX3 | Sony A7c | ||
Type | Tilting | VS | Fully-articulating |
Resolution | 1.44 M-dot | VS | 0.92 M-dot |
Diagonal | 2.95" / 7.5 cm | VS | 2.95" / 7.5 cm |
Touchscreen | Yes | VS | Yes |
Optional Features
| Sony FX3 | Sony A7c | ||
Wi-Fi / Bluetooth | Yes / Yes | VS | Yes / Yes |
Headphone Jack | Yes | VS | Yes |
USB Version | USB-C 3.2 | VS | USB-C 3.2 |
GPS | No | VS | No |
Time Lapse | No | VS | Yes |
Recommended lenses
Check recommended lenses for these cameras
Suggested Accessories
For Sony FX3
For Sony A7c
Others VS to check
Sony FX3
Detailed comparison by Sylvain PONS
As a photography enthusiast, I've spent a lot of time exploring, comparing and analysing these cameras' features to help you make the right choice!
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Release Date
Mount
Definition
Sensor Size
Image Stabilization
ISO Sensitivity
Card Slots
Processor
Recommended Price
Magnification
Sensibilidad AF
Number of Focus Points
Maximum Resolution
Recording Format
Recording Time Limit
General
Portrait
Landscape
Sports
Weather-Sealed
Battery Type
Weight
Dimensions (W×H×D)
Volume
Viewfinder Battery Life
Built-in Flash
Maximum Flash Sync Speed
Min. Shutter Speed
Max. Burst Rate (Mechanical)
RAW Buffer
Diagonal
Touchscreen
Wi-Fi / Bluetooth
Headphone Jack
USB Version
GPS
Time Lapse









