coude telescope
coude system
reflector
Herschelian telescope
off-axis reflector
telespectrograph
Schmidt camera
speculum
Schmidt telescope
subreflector
Nasmyth telescope
radiospectrometer
spyglass
field glass
glass
telescopically
Newtonian telescope
coronograph
Newtonian reflector
chromatoscope
coelostat
telephotometer
specular
mirrorlike
teleotoscope
telespectroscope
reflection
monoscope
telescopic
reflectivity
reflexion
Maksutov telescope
telespectroradiometer
heliostat
dioptric
astrograph
refractor
radio observation
solar telescope
reflecting telescope
Galilean telescope
perspective glass
terrestrial telescope
finderscope
telescopiform
debusscope
spectroheliokinematograph
tailpiece
photoradiography
monogon