Gday Nicolae
There are 2 versions of Meades 6.3 reducer.
The later models focus at about 45mm behind the reducer, hence are useless for visual. The earlier ones focussed at about 110mm.
You really need to determine what version it is before anything else.
ref
https://stargazerslounge.com/topic/1...ocus-distance/
for one of the many threads on this beastie.
Andrew