telescope
→
HasA
→
focal length
|
0.45
|
|
telescope
→
HasA
→
focuser
|
0.44
|
|
telescope
→
HasA
→
two mirrors
|
0.38
|
|
telescope
→
HasA
→
aperture
|
0.36
|
|
telescope
→
HasA
→
primary mirror
|
0.35
|
|
telescope
→
HasA
→
larger aperture
|
0.29
|
|
telescope
→
HasA
→
focal ratio of f/10
|
0.28
|
|
telescope
→
HasA
→
ritchey-chrétien optical config…
|
0.28
|
|
telescope
→
HasA
→
a field of view
|
0.27
|
|
telescope
→
HasA
→
narrow field of view
|
0.27
|
|
telescope
→
HasA
→
feature
|
0.25
|
|
telescope
→
HasA
→
large optical tube
|
0.25
|
|
telescope
→
HasA
→
moving parts
|
0.25
|
|
telescope
→
HasA
→
an f5 aperture ratio
|
0.19
|
|
telescope
→
HasA
→
good optics
|
0.19
|
|
telescope
→
HasA
→
a vixen-style universal dovetai…
|
0.16
|
|
telescope
→
HasA
→
troubled start
|
0.16
|
|