Sony Alpha a7 IV Black 2021
搭载33MP全画幅Exmor R背照式传感器与BIONZ XR处理器，支持4K 60p 10-bit 4:2:2内录和759点相位检测自动对焦，配合5轴IBIS与15+档动态范围。附带的FE 24-70mm f/2.8 GM II镜头具备恒定大光圈和出色分辨率，机身防尘防滴且提供S-Cinetone色彩科学。最适合同时追求高像素静态照片与专业视频拍摄的进阶混合型创作者。
Type mirrorless
Sensor 33MP full-frame
AF Points 759 pts
Burst 10 fps
Video 4K @60fps
IBIS 是
Weather Sealed 是
Weight 658 g
89 综合评分
价格 CA$3,212
概览
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 112 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 |
| Burst (Electronic) | 60 |
| Max Shutter | 1/8000 |
| Electronic Shutter | Yes |
Video
| Max Resolution | 4K |
| 4K FPS | 60 |
| 1080p FPS | 120 |
| 10-bit | Yes |
| Log Profile | Yes |
| RAW Video | No |
| 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 |
| Battery Life | 680 |
Connectivity
| Wi-Fi | Yes |
| Bluetooth | Yes |
| USB | USB-C 3.2 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 | 96.3 | 88.5 | 78.4 | 58.4 | 96.7 | 81 | 92.2 | 82.9 |
| 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 |
价格
性价比分析
最低 CA$3,212
