106cm Teleskop Pic du Midi: Frage

Hallo Thomas,

bei Cloudynights gefunden:

http://www.cloudynights.com/ub…1873-PicduMidi1mPage1.png
http://www.cloudynights.com/ub…1874-PicDuMidi1mPage2.jpg
http://www.cloudynights.com/ub…1936-PicDumidi1mPage3.png

Demnach war es mal ein Cassegrain, wahlweise mit f/30 oder f/15.

User J-Luc Dauvergne sagt dort dazu:
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">Zitat:<hr height="1" noshade id="quote">With small pixels there is not interest to go at F/30. Now it's in nasmith at f/17.
The original miror delivered by US was far to be perfect, it have been changed by a zerodur blank polished here by Texereau. <hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">

http://www.cloudynights.com/ub…mber/4102668/Main/4084483

Caro