Unverified88% confidenceDecision RuleTime unknown
锁定快门功能对长曝光是刚需——按下推杆锁定可实现B门无限时曝光，无此功能则需全程手按快门造成抖动，选购长曝光用途时务必确认带机械锁定推钮
1
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88%
Confidence
Long-term
Relevance
-
First Seen
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