Archiv pro měsíc: Prosinec 2013

Newtonian Secondary Holder (Spider Vanes) Issue

Publikováno 21/12/2013 | Autor: pavelpech

Newtonian astrograph is probably the best choice for those of us who are seeking ultimate performance. But, there are plenty of really key (fundamental) things that must be built with highest precission and quality possible. One of them is the … Celý příspěvek →

Rubriky: Articles in ENGLISH, Pokusy, Technika, recenze | Napsat komentář

ASA 10″ Newtonian F/3.6 (0.95x Wynne) – First Light

Publikováno 21/12/2013 | Autor: pavelpech

At the end of year 2012 I have sold my Losmandy G-11 mount because I knew that one day I will have to adopt a Newtonian system as my primary astrograph (and I did not want to overweight the perfectly … Celý příspěvek →

Rubriky: Articles in ENGLISH, Technika, recenze | Napsat komentář

miniBorg 71FL F/3.9 (0.7x #7870) and 36x24mm CCD

Publikováno 21/12/2013 | Autor: pavelpech

I have been recently asked on a comment on performance of 71FL vs. 77EDII (because I am known for owning all Borg lenses and reducers). I have found this quick-test image somewhere on my hard-drive. It’s from November 2011 so … Celý příspěvek →

Rubriky: Articles in ENGLISH, Technika, recenze | 4 komentáře