Sony Alpha a7 IV Black 2021
A 33MP full-frame sensor, 759-point phase-detect AF, and 10fps burst drive sharp stills and 4K 60p 10-bit video, with the included 24-70mm f/2.8 GM II lens delivering exceptional sharpness and smooth bokeh. Its fully articulating screen, 5-axis IBIS, and weather-sealed build suit handheld video work and challenging conditions. Best for hybrid shooters and sports/wildlife photographers needing reliable subject tracking and professional video in a single body.
Type mirrorless
Sensor 33MP full-frame
AF Points 759 pts
Burst 10 fps
Video 4K @60fps
IBIS 是
Weather Sealed 是
Weight 658 g
74 综合评分
价格 CA$0
概览
优缺点
优点
- Strong social proof (99th percentile) 99th
- Strong af (95th percentile) 95th
- Strong connectivity (93rd percentile) 93rd
- Strong evf (86th percentile) 86th
缺点
用户评价
用户口碑如何随时间变化
独家依据客户实际撰写评价的时间--让你看到最初的好评是否持续。
用户口碑随时间保持稳定
基于 97 条带日期的客户评价，按日历季度分组。分期分析为英文。
实测数据
性能表现
规格参数
完整规格参数
Sensor
| Type | CMOS |
| Size | full-frame |
| Megapixels | 33 MP |
| ISO Range | 100 |
| Processor | BIONZ XR |
Autofocus
| AF Points | 759 |
| AF Type | Continuous-Servo AF (C), Direct Manual Focus (DMF), Manual Focus |
| Eye AF | Yes |
| Animal AF | Yes |
| Subject Detection | Yes |
Shooting
| Burst (Mechanical) | 10 |
| Max Shutter | 1/8000 |
| Electronic Shutter | Yes |
Video
| Max Resolution | 4K |
| 4K FPS | 60 |
| 1080p FPS | 120 |
| 10-bit | Yes |
| Log Profile | Yes |
| Codec | H.264, H.265, XAVC S, XAVC HS, XAVC S-I |
Display & EVF
| Screen Size | 3" |
| Touchscreen | Yes |
| Articulating | Yes |
| EVF Resolution | 3.68 M dots |
Build
| Weather Sealed | Yes |
| Weight | 0.7 kg / 1.5 lbs |
Connectivity
| Wi-Fi | Yes |
| Bluetooth | Yes |
| USB | USB-C 3.2 / 3.1 Gen 1 |
| HDMI | HDMI Output |
| Hot Shoe | Yes |
竞品对比
| Spec | Sony Alpha a7 IV | Canon EOS R6 Mark III | Fujifilm X-H2 | Nikon Z Z9 | Panasonic LUMIX GH7 | OM System OM-1 Mark II |
|---|---|---|---|---|---|---|
| Type | mirrorless | mirrorless | mirrorless | mirrorless | mirrorless | mirrorless |
| Sensor | 33MP full-frame | 32.5MP full-frame | 40.2MP aps-c | 45.7MP full-frame | 25.2MP micro-four-thirds | 20.4MP micro-four-thirds |
| AF Points | 759 | 1053 | 425 | 493 | 315 | 1053 |
| Burst FPS | 10 | 40 | 20 | 30 | 75 | 120 |
| Video | 4K @60fps | 6K @120fps | 8K @60fps | 8K @120fps | 6K @120fps | 4K @60fps |
| IBIS | true | true | true | true | true | true |
| Weather Sealed | true | true | true | true | true | true |
| Weight (g) | 658 | 609 | 579 | 1160 | 721 | 511 |
| Compare | Compare | Compare | Compare | Compare |
| 产品 | AF | EVF | Build | Burst | Video | Sensor | Battery | Display | 用户口碑 | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Sony Alpha a7 IV | 95 | 86.3 | 83.4 | 61.2 | 78.4 | 58.4 | 44.7 | 81 | 99.3 | 69.5 |
| Canon EOS R6 Mark III Compare | 98.2 | 85.9 | 94.3 | 92.5 | 98 | 57.1 | 96.2 | 98.9 | 92.2 | 99.5 |
| Fujifilm X-H2 Compare | 86.2 | 95.1 | 88.9 | 83.7 | 99.9 | 98.6 | 96.7 | 81 | 86.9 | 92.9 |
| Nikon Z Z9 Compare | 88.8 | 87.6 | 99.5 | 96 | 98.5 | 63.3 | 97.1 | 81 | 92.2 | 82.9 |
| Panasonic LUMIX GH7 Compare | 81.9 | 85.9 | 97.4 | 94.8 | 96.7 | 54.5 | 88.5 | 81 | 77.1 | 95.6 |
| OM System OM-1 Mark II Compare | 98.2 | 88.3 | 88.4 | 99.8 | 82.3 | 38.2 | 93.8 | 81 | 86.9 | 99.5 |
使用场景评分
完整评测即将发布。上方的规格、评分、价格和图表始终保持最新。
