本社为Celestron HyperStar 6 & 8摄影修正镜特别开发了分拆式鱼骨对焦板，是拍摄深空天体精确对焦不可或缺的工具，简单易用。对焦板以十分耐用的PVC物料製作，附送锥型硅胶塞，方便装拆及固定。

对焦板分别定价港币60及80元。现更推出特别优惠，凡购买Celestron HyperStar 6 & 8摄影修正镜即免费附送相应分拆式鱼骨对焦板一对。

Galaxy Scientific Group Split Bohtinov Focusing Mask for HyperStar 6

https://www.astro.hk/catalogs/products/id/483

Galaxy Scientific Group Split Bohtinov Focusing Mask for HyperStar 8

https://www.astro.hk/catalogs/products/id/484

Our group has developed split Bohtinov focusing masks, especially compatible with Celestron HyperStar 6 & 8 correctors. They help much in focusing for deep-sky imaging and are easy to use. The masks are made of durable PVC materials and come with pair of silicone plugs, which facilitate the assembly, disassembly and fixation.

The prices of the masks are HK$60 and HK$80 respectively. While a special offer is now available – get the corresponding pair of split Bohtinov focusing masks for free upon purchase of Celestron HyperStar 6 & 8 correctors.