WongSir visited the 24 in telescope

自製天文望遠鏡 牛頓望遠鏡 杜蘇式 卡式 設計和磨鏡方法<br>
佛科試鏡法 佛科刀片儀 光柵試鏡法 光柵片
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Chanlunlun
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文章: 3828
註冊時間: 週四 09 10月, 2003 21:06

WongSir visited the 24 in telescope

文章 Chanlunlun » 週一 26 4月, 2004 09:46

Dear ATMs,

Yesterday WongSir arrived and pay a visit to our newly completed 24 inch telescope. He was especially satisfied with the simple yet stable design of the OTA and alt-az mount. He was also particularly interested in the intruding focuser, which eliminates the use of a big diagonal mirror yet maintaining a full reception of the light fan from the primary mirror. Together he also inspected our old 10 inch f/4.5 Newtonian, which was finished 4 years ago. This Newtonian is now being mounted on a heavy duty equatorial mount.

We would like to express our gratitude towards WongSir who spared his time to look at the 24 inch and supply many valuable comments.

Sincerely yours,
Chan Yuk Lun
25-4-2004
附加檔案
visit.jpg
WongSir and the 24 inch, 10 in Newtonian. You can see the different design philosophy of these two telescopes.
visit.jpg (81.54 KiB) 已瀏覽 5116 次
20_and_7_ inch.jpg
The 20 inch telescope brought to Beijin Observatory last Christmas. The 24 inch is actually a copy of this telescope with minor modification. On the left you can see the little 7 inch bought along at the same trip.
20_and_7_ inch.jpg (89.83 KiB) 已瀏覽 5116 次

bandofbrother
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文章: 183
註冊時間: 週四 25 12月, 2003 19:38

文章 bandofbrother » 週一 26 4月, 2004 13:37

支七吋好似顯得好細咁........

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