Hmmm
Unblazed, unmounted....500 l/mm means a deviation angle of at least 18 degrees....
2015-06-23 1:57 GMT+10:00 Lothar Schanne <
fg-spek-tech@vdsastro.de>:
Link zum neuen Beitrag:
http://spektroskopieforum.vdsastro.de/v ... 337#p26926
Hallo zusammen,
wer einen ganz billigen Staranalyzer braucht....
http://www.rainbowsymphonystore.com/digrglli500l.html
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Herzliche Grüße / best regards
Lothar
www.astrospectroscopy.eu
www.gesundes-wandern.com
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