25
The adjustment of the telescope is delicate and is carried out only
in case, of emergency, when it is clear that the telescope is misadjusted
and its mirrors and reflections from them are not concentric.
Fig. .
Setting concentricity of mirrors:
- inner diameter of focusing mount; 2 - diagonal mirror;
3 - reflection of primary mirror in diagonal;
4 - reflection of diagonal mirror in primary one; 5 - observer's eye
