Unverified88% confidenceDecision RuleTime unknown
超短焦投影镜头（TR值＜0.4）实现100英寸画面仅需约30cm投射距离，选购时须确认镜头TR值与实际墙面到柜体距离匹配：TR 0.25约需20cm投100寸，TR 0.35约需35cm，误差超过5cm就需要重新调整摆位
1
Sources
88%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified全画幅单反+70-200mm长焦镜头需选择镜头仓深度≥25cm的相机包，短焦收纳包（<18cm）无法立式放入长焦头78% similarUnverified投影比（Throw Ratio）决定所需距离：投影比1.2:1时投100寸约需2.6米，短焦机型（0.8:1以下）可在1.5米内投大画面，卧室/租房小空间应选短焦或超短焦77% similarUnverified投影距离与画面尺寸受投射比制约，投射比1.2时投100寸约需2.7米，房间进深不足选短焦(投射比<0.8)或超短焦(投射比<0.3)机型77% similarUnverified投射比约1.2:1，投100寸画面大约需要2.7米左右的投距，小客厅或短墙距空间购买前需确认投射距离是否满足需求76% similarUnverified投影尺寸与投射比换算：投射比1.2的机器，投100英寸画面需约2.65米距离；小户型或墙距不足选投射比≤1.2或超短焦机型76% similar
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