有 21 筆資料符合您搜尋的條件

dng88
週五 10 5月, 2013 19:54
版面: 廠製儀器 Factory Equipment
主題: 便攜攝星儀
回覆: 55
觀看: 68866

[quote="鄧登凳"]回jtcl: 代理是卓越計劃 www.a-track.net

回wtyu21: 一般蝸齒設計會有週期誤差, 不導星200mm己接近極限。[/quote]

Just got one today.
dng88
週日 05 5月, 2013 22:56
版面: 二手交易場 Second Hand Area
主題: 放 450D 改 連 MFA + LPS-P2-FF + LPS-V4-FF
回覆: 11
觀看: 12298

Has the camera filter change to full spectrum with clear glass?
dng88
週三 30 5月, 2012 22:54
版面: 天文攝影 Astrophotography
主題: 小弟寫的“夜空拍攝入門”電子書
回覆: 53
觀看: 22765

Downloaded, after re-install PCM HD (which I found no use and just decided to delete it today!). I guess even under your logic, we still should not get $8 from you. PCM must charge you something. Also, we have read something. Instead, we should support local writer and wish you good success in your ...
dng88
週三 30 5月, 2012 22:51
版面: 天文話題 Everything about Astronomy
主題: 邵逸夫天文奬2012年度得獎人
回覆: 3
觀看: 5080

Good but seems need an end part (even though by now we all know the end part). a video 6 is needed, even though we can all go to Wikipedia to know about the fate of Pluto and Xena ...
dng88
週六 26 5月, 2012 10:37
版面: 天文攝影 Astrophotography
主題: 晚晚風起雲湧!!!!
回覆: 11
觀看: 2830

Stars so bright that when I look up I wonder why two airplane fly in sync so well. It is not. It is spica, saturn "move because of the cloud movement". Tricked my son as well.
dng88
週六 26 5月, 2012 10:32
版面: 天文攝影 Astrophotography
主題: 南天攝星之旅 (二) Time-Lapse #02 updated
回覆: 45
觀看: 11362

Amazing! Not sure just pay a few hundred dollars can do this though. Especially not sure how to have star and scene in such time-lapse ...
dng88
週日 13 5月, 2012 20:33
版面: 廠製儀器 Factory Equipment
主題: 展示你的便携觀星設備
回覆: 501
觀看: 455146

[quote="TONGKW"]試下將我現有給 “Astrotrac/ 哈雷“ 攝星儀用的極軸鏡裝上去 Vixen Polarie Star Tracker 攝星儀,發覺是可用,用壹枝螺栓上緊就可以。 這麼不用買原廠的極軸鏡了。[/quote] For the last one year, I am looking at - Astrotrac - well, Pentax K5 with GPS module and would get one this summer. This new devices comes as a surprise and seems "better". Give...
dng88
週六 12 5月, 2012 22:23
版面: 廠製儀器 Factory Equipment
主題: 展示你的便携觀星設備
回覆: 501
觀看: 455146

Taking wide field in North Point

[quote="TONGKW"]EQ1單軸電跟 原廠EQ1的單軸電跟裝在側邊不好用,體積大及不是恒速。 要想辦法另外找尋適當的單軸電跟。 ﹣﹣﹣﹣[/quote] Not very successfully so far for taking any astro photos. Lately just try point my A77 and 70-300 to Vega in my North Point Balcony towards Eastern part of Victoria Harbour. Surprisingly whilst you can only see vega (a...
dng88
週一 18 7月, 2011 22:37
版面: 香港天文儀器
主題: Tan14 please check email
回覆: 1
觀看: 6039

Tan14 please check email

Hi, Try to contact you via email using the account under http://www.tan14.com/gears.htm. As there is no response so far, try this forum. Want the skysafari mainly but if it is ok to take photo, want to try the QHY5 with LRGB filer as well. Some others as well. See the email. Thanks. For your respons...
dng88
週日 10 7月, 2011 12:52
版面: 廠製儀器 Factory Equipment
主題: Meade ETX系列望遠鏡討論
回覆: 67
觀看: 38568

Trying ETX 80 (just got it second hand here on Monday). I found a) I cannot use the Celestron C130MAK to focus my Sony Nex3 using the back hole (the thing fit) b) I found out that (but too late) that I can use the built in barrow plus a T ring + eyepiece adapter to focus a building in daylight c) I ...
dng88
週三 06 7月, 2011 23:57
版面: 天文活動消息 Astro Activity News
主題: 港島星友報到區
回覆: 47
觀看: 43470

1. anyone....西區 2. Tennom....上環 3. johncamposhk...工地舂坎角 住TKO 4. ambcyli.....堅尼地城 5. Koichi....鴨利洲 6. SIUSIU...香港仔 7. PaulNg...天后 8. Subaru...港島東 9. A/45...薄扶林 10. Raymond Tse Mid-Levels 11. 物理小子...宿舍: 薄扶林 家: 將軍澳 12. Tinping...港島東 13. cyf.... 西環 14. sodium 田灣 15. 星閃閃-----堅尼地城 16. HoWing...宿舍: 西貢 家: 鴨...
dng88
週二 05 7月, 2011 21:50
版面: 二手交易場 Second Hand Area
主題: For Sell: MEADE ETX-80AT-BB 自動導航天文望遠鏡 $1300
回覆: 8
觀看: 8141

BTW, if weaser the etx web site is right, it shall be able to connect to computer (and ipad/iphone) using Autostar 497. 494/506 under windows 98 may be a bit too old now but shall work as well.
dng88
週二 05 7月, 2011 21:48
版面: 二手交易場 Second Hand Area
主題: For Sell: MEADE ETX-80AT-BB 自動導航天文望遠鏡 $1300
回覆: 8
觀看: 8141

Got it and worked so far. In fact, the Celestron C130 Mak back hole is the same as the Meade ETX 80. Hence my Sony Nex3 via Nikon adapter for my C130 can be used to take picture on the ETX 80 (using back hole) as well. Nothing so far as the focusing is quite hard, but knowing it work is quite good a...
dng88
週日 03 7月, 2011 21:28
版面: 二手交易場 Second Hand Area
主題: For Sell: MEADE ETX-80AT-BB 自動導航天文望遠鏡 $1300
回覆: 8
觀看: 8141

I wait for this BB 80 for a month now in grand eye. If I can get one, I am definitely want to have it now. Queue up and pls pm if still available.
dng88
週日 05 6月, 2011 08:17
版面: 天文台 Observatory
主題: 香港的天文台(2)---南約區中學
回覆: 13
觀看: 29432

Any update what happen to the telescope now. Passing by the school and the building is still there!

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