行星目鏡的選擇 - Mono vs Nikon, Radian vs Zeiss....
發表於 : 2010-03-26, 15:49我的好友，德國APM負責人Markus Ludes對目視觀測是很有一手的，也是鑑定各類望遠鏡及目鏡的專家。 viewtopic.php?f=13&t=85 最近代理了日本Nikon的天文目鏡，表現得很興奮，我問他一個問題，就是跟 TMB Supermonocentric 目鏡在月面行星上的表現，當然心底裡是有答案的。
引述電郵內容如下，也對各同好有一定參考價值：
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yes 8 lenses with many airspaces always sharper the the worldbest planetary design with 3 cemented lenses
(這句他開玩笑)
what I find myself : old test Zeiss Ortho against Radian. Zeiss is sharper and has better contrast , no question , if you looking as a real planetary observer for finest details the zeiss is the way to go.
But if you just occassionaly watch the Planets , the Radin offer a more relaxed view due the larger FOV and better eyerelief, so non experienced observers may prefer the Radian
same is as mono and NIKON
btw the old NIKON 7 mm 72° ( spotting scope eyepiece 60x775x) has better contrast less straylight then the new astro eyepiece
so when I observe Planets and I have time and I am relaxed, then I use Monos , but if I have not much time and just want to look to Planets then I use Naglers, Ethos and and others
Markus
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因此，我的目鏡手提箱裡只有Televue Ethos及TMB Supermonocentric，兩個Pentax XO是短暫測試之用。Ethos作輕鬆欣賞深空天體，Supermonocentric專攻行星月面，但要聚精滙神累一點，這是必要的代價。
參考連結：
viewtopic.php?f=5&t=68
viewtopic.php?f=5&t=23
- 671093-1.jpg (31.27 KiB) 被瀏覽 8261 次
引述電郵內容如下，也對各同好有一定參考價值：
-----------------------------------------------------------------------
yes 8 lenses with many airspaces always sharper the the worldbest planetary design with 3 cemented lenses
(這句他開玩笑)what I find myself : old test Zeiss Ortho against Radian. Zeiss is sharper and has better contrast , no question , if you looking as a real planetary observer for finest details the zeiss is the way to go.
But if you just occassionaly watch the Planets , the Radin offer a more relaxed view due the larger FOV and better eyerelief, so non experienced observers may prefer the Radian
same is as mono and NIKON
btw the old NIKON 7 mm 72° ( spotting scope eyepiece 60x775x) has better contrast less straylight then the new astro eyepiece
so when I observe Planets and I have time and I am relaxed, then I use Monos , but if I have not much time and just want to look to Planets then I use Naglers, Ethos and and others
Markus
-----------------------------------------------------------------------
因此，我的目鏡手提箱裡只有Televue Ethos及TMB Supermonocentric，兩個Pentax XO是短暫測試之用。Ethos作輕鬆欣賞深空天體，Supermonocentric專攻行星月面，但要聚精滙神累一點，這是必要的代價。
參考連結：
viewtopic.php?f=5&t=68
viewtopic.php?f=5&t=23