星河科研社Bahtinov調焦板現貨供應，為拍攝深空天體精確調焦不可或缺的工具，簡單易用。

Galaxy Scientific Group Bahtinov Focusing Mask in stock, a must-have and easy to use tool for deep sky astrophotography.

80mm 調焦板，適合相機鏡頭至90mm口徑、同時鏡筒或遮光罩不大於120mm的望遠鏡或鏡頭用 

80mm focusing mask, for telescopes or lens aperture up to 90mm, with tube or dewshield OD less then 120mm

150mm 調焦板，適合90mm至170mm口徑、同時鏡筒或遮光罩不大於185mm的望遠鏡或鏡頭用 

150mm focusing mask, for telescopes or lens aperture 90 to 170mm, with tube or dewshield OD less then 185mm

200mm 調焦板，此型號適合Celestron C8 或 EdgeHD8 鏡筒，亦適合170mm至210mm口徑、同時鏡筒或遮光罩不大於235mm的望遠鏡或鏡頭用 

200mm focusing mask, for Celestron C8 or EdgeHD8, telescopes or lens aperture 170 to 210mm, with tube or dewshield OD less then 235mm

250mm 調焦板，適合210mm口徑以上、同時鏡筒或遮光罩不大於280mm的望遠鏡或鏡頭用 

250mm focusing mask, for telescopes or lens aperture 210mm or up, with tube or dewshield OD less then 280mm

以十分耐用的PVC物料製作，附送錐型膠塞，方便架在望遠鏡前使用。

Made from PVC for durability, supplied with silicone plugs for easy fixing on telescopes or lens.

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