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主題: 張兄問有沒人使用過 On Axis Guiding (ONAG) 作者: peter 於 2020-03-23 08:56:52 https://www.innovationsforesight.com/products/on-axis-guider-onag/?fbclid=IwAR2n2bsLRq3kVpGaP-3mLiDKBIdfPfzEVk7jbWFcy17NrxsTFkkmy-vTd2s
起因是SCT 或長焦OAG 視野極小，容易找不到導星 off axis guide http://familystar.org.tw/index.php?option=com_smf&Itemid=38&topic=25139.0 https://www.cloudynights.com/topic/615688-onag-on-axis-guider-pros-cons/ 主題: 回覆： 張兄問有沒人使用過 On Axis Guiding (ONAG) 作者: peter 於 2020-03-23 08:59:21 GOOGLE
FIND http://familystar.org.tw/index.php?option=com_smf&Itemid=45&topic=18648.0 |