Unverified87% confidenceDecision RuleTime unknown
如果预算允许且焦段够用，索尼原厂200-600mm G在对焦兼容性和恒定f/5.6光圈上有优势；选Sigma这款的核心理由是价格更低且长焦端多出的焦距以及更紧凑的收纳长度
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87%
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Long-term
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-
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