Mu 1611, German zakuthambo Kepler anatenga zidutswa ziwiri za mandala mandala monga cholinga ndi eyepiece, makulitsidwe mwachionekere bwino bwino, kenako anthu ankaona dongosolo kuwala izi monga Kepler telescope.

Mu 1757, Du Grand pophunzira za magalasi ndi madzi osakanikirana ndi kubalalitsidwa, adakhazikitsa maziko ofotokozera achromatic lens, ndipo adagwiritsa ntchito korona ndi magalasi a mwala kupanga ma lens achromatic.Kuyambira nthawi imeneyo, achromatic Refractor Telescope idalowa m'malo mwa thupi lalitali lagalasi lalitali.

Kumapeto kwa zaka za m'ma chakhumi ndi chisanu ndi chisanu ndi chinayi, pamodzi ndi luso kupanga bwino, kupanga caliber yokulirapo ya telesikopu refracting n'zotheka, ndiye pali kupanga lalikulu m'mimba mwake Refractor Telescope pachimake.Mmodzi mwa oimira kwambiri anali telesikopu ya Ekes ya mainchesi 102 mu 1897 ndi telesikopu ya Rick ya mainchesi 91 mu 1886.

Telesikopu yowoneka bwino ili ndi maubwino a kutalika kwapakati, sikelo ya mbale ndi yayikulu, kupindika kwa chubu sikumveka, koyenera kwambiri ntchito yoyezera zakuthambo.Koma nthawi zonse imakhala ndi mtundu wotsalira, nthawi yomweyo ku ultraviolet, mayamwidwe a infuraredi amphamvu kwambiri.Ngakhale kuti njira yaikulu yothira magalasi ndi yovuta, ku makina oonera zakuthambo a Yerkes omwe anamangidwa mu 1897, chitukuko chafika pachimake, kuyambira zaka zana izi palibe telescope yowunikira kwambiri yomwe idawonekera.