Unverified82% confidenceFactTime unknown
马卡-卡塞格林(马卡镜)在小体积内实现长焦距,镜筒短便携性好,特别适合出行携带看行星,但视场窄不适合大范围深空
1
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82%
Confidence
Long-term
Relevance
-
First Seen
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