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原价
$599.00
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原价
$599.00
原价
$599.00
$599.00
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$599.00
现价
$599.00
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OPTEC Lepus .62x 减焦镜
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OPTEC Lepus .62x 增距镜针对镜头最后一面与图像平面之间的距离 100mm 进行了优化。从增距镜法兰测量，该距离为 105mm。假设原始焦比为 f/10，Lepus 0.62X 将使有效焦比降低至约 f/6.2。将图像平面向外移动将进一步降低焦比，但会降低图像边缘的星光质量。大多...
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原价
$599.00
-
原价
$599.00
原价
$599.00
$599.00
-
$599.00
现价
$599.00
| /
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节省$0.00
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