X-T5 vs Z 9
af pointsを並べて確認。
af pointsを理解する
Autofocus points are the discrete locations on the sensor where the AF system can lock focus. Modern mirrorless bodies report point counts ranging from a few hundred to several thousand.
Why the count alone can mislead
Coverage area and detection type matter more than raw count:
- A 425-point system covering 100% of the frame outperforms a 1,053-point system covering only the center 60%.
- Hybrid phase-detect + contrast AF is faster than contrast-only with twice as many points.
What to compare
- Coverage area (% of frame).
- AF detection mode count (eye-AF for humans, animals, birds, vehicles).
- Low-light AF rating (EV value — lower is better, -6 EV is excellent).
- Continuous AF tracking frame rate.
In comparisons
For sports and wildlife, prioritize bodies with subject-recognition AF (eye-detection for the relevant subject) over raw point count.
この対戦Z 9's 493 is roughly 16% higher than X-T5's 425 (a 68 gap). Whether that gap is noticeable depends on workload — small percentage gaps rarely change day-to-day experience, while gaps of 20% or more usually do.
af pointsとは？
The number of selectable autofocus zones across the frame. More points usually means denser frame coverage and finer subject-tracking granularity.
AF pointsの詳しい解説を読む →この比較の他のスペック
完全な カメラ カテゴリをMars Score順で見る。