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定焦鏡頭增距鏡

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  • 提供 1.5 和 2X 倍率版本
  • 相容於 C 接環成像鏡頭
  • 提供 M3 螺紋接環

作為間隔環的替代措施，向光學系統的相機端加入一個負焦距鏡頭可減小視場，同時維持原始的工作距離規格。例如，將焦距增加2倍同樣可將視場減小兩倍。因此，2X擴展鏡可將25mm焦距鏡頭轉換成50mm焦距鏡頭。專為 C 接環視訊鏡頭而設計。

 
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