Небезызвестная компания TEC без особого ажиотажа представила прототип астрографа TEC EXP300F5.6.Копирую сюда сообщение Юрия Петрунина из TEC Yahoo! Group: Last Thursday I had a ~5 min presentation of new project on WSP 2009.A few pictures of the Astrograph were uploaded in the FILESUnit is on prototype stage. Most parts made of AL and Stainless steel, rods aremade of Titanium tubes. Reflective optics made of Quartz.It is 5 elements optical system: two mirrors and 3-lens corrector, made forCCDing. CO is 49% (can not be less for given focal ratio).Astrograph w/o focuser weights 27.5lb. With foamed case -
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Линейный вид
