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主題: GSO classical cassegrain 蓋塞格林反射鏡 作者: peter 於 2020-06-02 15:40:22 http://www.astronet.co.kr/xe/index.php?mid=gallery_solar&m=0&document_srl=246911&fbclid=IwAR1dXsWDhrklaZpra8PRnRm6j_QKccSle1Ikp1w9SBquQrRSqOayZiAre5A 主題: 回覆： GSO classical cassegrain 蓋塞格林反射鏡 作者: peter 於 2020-06-02 15:41:24 https://astromart.com/reviews-and-articles/reviews/telescopes/cats/show/gso-8-inch-true-cassegrainian?fbclid=IwAR3IixMIim8mTrl1dBVgEIVBlQp45cG2XXN7VKe1zTygpH32cfAV3EnZyIY
(https://astromart.com/uploads/shares/carlino2.jpg) central obstruction is about 33% RC是44％ 主題: 回覆： GSO classical cassegrain 蓋塞格林反射鏡 作者: peter 於 2023-01-06 13:10:05 MORE
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