Unverified85% confidenceDecision RuleTime unknown
投影100寸画面建议投射比≤1.3的投影仪，短焦(投射比0.5左右)可在1.5米内投出100寸，适合小户型；超短焦(投射比0.25以下)需搭配抗光幕布
1
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85%
Confidence
Long-term
Relevance
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Unverified投影距离决定画面：短焦比（如0.8:1）能在1.5米内投出100寸，普通投射比（1.2-1.4:1）需要2.5-3米。小房间/近距离场景务必看投射比而非只看'最大投影尺寸'84% similarUnverified投影比（Throw Ratio）决定画面大小，短焦投影比≤1.2的机型在3米内可投出100寸，普通1.2-1.5投影比机型需2.5-3米才能投100寸，小户型/卧室必须看投影比而非只看亮度83% similarUnverified3米内投100英寸需要投射比≤1.2的机型，小户型墙距不足时应选投射比≤0.8的短焦或选激光电视（超短焦0.25左右）83% similarUnverified想覆盖人像到远景全焦段，优先选配备潜望长焦（等效100mm以上）的机型，理想组合为超广角13mm+主摄24mm+人像焦段2x/3x+潜望长焦5x以上，避免只有主摄裁切数码变焦的机型82% similarUnverified投影距离与画面尺寸需匹配投射比：普通长焦机(投射比1.2左右)投100寸需约2.8米距离，小户型或客厅进深不足3米应选投射比≤0.8的短焦或超短焦激光电视82% similar
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