Superseded90% confidenceDecision RuleTime unknown
延时摄影（星轨、日转夜）必须选择支持间隔计时（intervalometer）的定时快门，且间隔范围需覆盖1秒至99小时、曝光次数支持无限（∞）设定，普通简易快门线仅有单次触发和B门锁定功能无法胜任
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This knowledge claim has been superseded by newer content
拍星轨、延时摄影需要带定时功能的“定时快门线”（intervalometer），普通快门线只有释放和B门锁定功能，无法自动循环拍摄，选购时确认产品带LCD屏和间隔/张数设置Sources
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