FlashDrive
30-07-2019, 08:07 PM
http://astrosurf.com/sogorb/takahashi/takahashi_ts_refractors.html
1977, a fluorite triplet at f/11.1 (f=1000mm) It's the first fluorite Takahashi telescope!
It's the first fluorite Takahashi telescope!
Col...
1977, a fluorite triplet at f/11.1 (f=1000mm) It's the first fluorite Takahashi telescope!
It's the first fluorite Takahashi telescope!
Col...