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 はい
Weather Sealed はい
Weight 658 g
73 総合スコア
価格 ￥0
Snapshot
メリットとデメリット
Pros
- Strong social proof (98th percentile) 98th
- Strong af (96th percentile) 96th
- Strong connectivity (93th percentile) 93th
- Strong evf (88th percentile) 88th
Cons
What owners think
購入者の評価が時間とともにどう変化したか
独自顧客が実際にレビューを書いた時期に基づいています。発売当初の高評価が続いたかどうかがわかります。
購入者の評価は一定を保っています
日付のある顧客レビュー 97 件を暦四半期ごとに集計しています。期間別の分析は英語です。
The proof
パフォーマンス
スペック
全スペック一覧
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 |
| HDMI | HDMI |
| Hot Shoe | Yes |
競合製品との比較
| Spec | Sony Alpha a7 IV | Canon EOS R6 Mark III R6 Mark III | Nikon Z Z9 | Fujifilm X-H2 X-H2 | Panasonic Lumix S S5IIX | OM System OM-1 Mark II OM-1 Mark II |
|---|---|---|---|---|---|---|
| Type | mirrorless | mirrorless | mirrorless | mirrorless | mirrorless | mirrorless |
| Sensor | 33MP full-frame | 32.5MP full-frame | 45.7MP full-frame | 40.2MP aps-c | 24.2MP full-frame | 20.4MP micro-four-thirds |
| AF Points | 759 | 1053 | 493 | 425 | 779 | 1053 |
| Burst FPS | 10 | 40 | 30 | 20 | 30 | 120 |
| Video | 4K @60fps | 6K @120fps | 8K @120fps | 8K @60fps | 6K @60fps | 4K @60fps |
| IBIS | true | true | true | true | true | true |
| Weather Sealed | true | true | true | true | true | true |
| Weight (g) | 658 | 609 | 1160 | 579 | 658 | 511 |
| Compare | Compare | Compare | Compare | Compare |
| Product | Af | Evf | Build | Burst | Video | Sensor | Battery | Display | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Sony Alpha a7 IV | 95.7 | 88.3 | 83.8 | 65 | 79.7 | 59.8 | 44.9 | 83.7 | 97.9 | 72.7 |
| Canon EOS R6 Mark III R6 Mark III Compare | 98.5 | 87.8 | 94.7 | 92.8 | 89.4 | 58.6 | 96.5 | 98.9 | 97.9 | 99.5 |
| Nikon Z Z9 Compare | 90.6 | 89.4 | 99.6 | 96 | 99 | 64.5 | 97.3 | 83.7 | 93 | 84.7 |
| Fujifilm X-H2 X-H2 Compare | 88.1 | 95.6 | 89.4 | 85.1 | 95.4 | 97.4 | 96.9 | 83.7 | 69.8 | 93.6 |
| Panasonic Lumix S S5IIX Compare | 97.3 | 88.3 | 96.7 | 90.6 | 93.1 | 49.1 | 90.3 | 83.7 | 97.9 | 84.7 |
| OM System OM-1 Mark II OM-1 Mark II Compare | 98.5 | 90.2 | 88.9 | 99.8 | 84.5 | 41.2 | 94.3 | 83.7 | 79.4 | 99.5 |
用途別スコア
詳細なレビューは近日公開予定です。上記のスペック、スコア、価格、チャートは常に最新です。
