Unverified85% confidenceDecision RuleTime unknown
跟焦需求为主时优先选对焦行程≥270度且线性（非速度渐变）的镜头，长行程带来更精细的跟焦分辨率；单人无跟焦器拍摄反而适合行程较短的镜头（如135度）以便快速手动对焦
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85%
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Long-term
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Unverified定焦镜头（如35/50mm f/1.8）比同焦段变焦光圈大2档以上、更轻更锐、价格更低，但需靠走位构图；不接受换镜或频繁移动的场景优先变焦82% similarUnverified70mm端最大放大倍率有限（约0.32x），需要经常拍摄微距或近摄特写的用户仍需搭配专用微距镜头80% similarUnverified套机附带的18-135/18-200等一镜走天下变焦，长焦端画质与对焦速度普遍偏弱，真正需要长焦性能应单独配70-200或100-400专业镜头80% similarUnverified采用1英寸主摄加中长焦双摄，兼顾广角与远摄构图，比单摄机型创作灵活性更高80% similarUnverified2450万像素对高分辨率大幅面输出或大量裁切需求偏低，追求高像素静态拍摄者建议看更高像素机型79% similar
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