有 214 筆資料符合您搜尋的條件
- 週四 09 2月, 2017 11:22
- 版面: 二手交易場 Second Hand Area
- 主題: 新貨做出來45mm天文碳腳合所有級别mount使用
- 回覆: 34
- 觀看: 14635
- 週四 09 2月, 2017 08:45
- 版面: 二手交易場 Second Hand Area
- 主題: 新貨做出來45mm天文碳腳合所有級别mount使用
- 回覆: 34
- 觀看: 14635
- 週三 22 7月, 2015 20:05
- 版面: 天文話題 Everything about Astronomy
- 主題: 攜帶天文器材上飛機
- 回覆: 7
- 觀看: 4874
- 週一 13 10月, 2014 21:01
- 版面: 自製天文望遠鏡 Amateur Telescope Making
- 主題: The making of 26 inch Cassegrain - 11, secondary mirror done
- 回覆: 10
- 觀看: 8081
- 週六 04 10月, 2014 14:54
- 版面: 二手交易場 Second Hand Area
- 主題: 賣一堆目鏡 - 2 (ES, Celestron, OR...)
- 回覆: 1
- 觀看: 4203
- 週一 02 6月, 2014 21:08
- 版面: 天文攝影 Astrophotography
- 主題: 選擇離開香港影星系列:馬灣三片葉
- 回覆: 9
- 觀看: 2949
- 週六 31 5月, 2014 11:52
- 版面: 天文活動消息 Astro Activity News
- 主題: 16 inch telescope will proceed PTC tonite (30 May 2014)
- 回覆: 7
- 觀看: 3027
- 週六 31 5月, 2014 10:55
- 版面: 天文活動消息 Astro Activity News
- 主題: 16 inch telescope will proceed PTC tonite (30 May 2014)
- 回覆: 7
- 觀看: 3027
- 週四 10 10月, 2013 21:16
- 版面: 談天說地 Chatting Square
- 主題: 曹博士話片中ufo好可能係金星
- 回覆: 15
- 觀看: 4635
- 週四 29 8月, 2013 20:52
- 版面: 廠製儀器 Factory Equipment
- 主題: Hubble Optics UL16 F/5 @ PTC (27 Aug 2013)
- 回覆: 6
- 觀看: 5288
Wongsir, I have installed 4 coil springs (2 on each side) to balance the telescope. I don't know the stiffness of the spring, but measured the dimension for your reference. The dimension is roughly dia. 10mm x length 80mm. I found that there are a number of holes on the rocker and the mirror box. Th...
- 週三 28 8月, 2013 20:44
- 版面: 廠製儀器 Factory Equipment
- 主題: Hubble Optics UL16 F/5 @ PTC (27 Aug 2013)
- 回覆: 6
- 觀看: 5288
Hubble Optics UL16 F/5 @ PTC (27 Aug 2013)
Bought this telescope from Wongsir early this year. Although there were a number of problems with this telescope (e.g. balance), the optics of the mirror is really good. Using the laser collimator, the scope was finally correctly collimated last night. Under a starry night, the scope really exceeded...
- 週四 15 8月, 2013 21:25
- 版面: 天文活動消息 Astro Activity News
- 主題: East Dam...........唉 !
- 回覆: 24
- 觀看: 10620
- 週四 13 6月, 2013 22:24
- 版面: 天文攝影 Astrophotography
- 主題: 東壩星空 @ 31 May 2013
- 回覆: 6
- 觀看: 3983