[DimitriDouchin (Dimitri)]

Hi everyone,

First post here.

I have moved from Celestron to Meade, I'm a little confused.

I am experiencing the following issues:
- the image gets out of focus within seconds as the telescope is tracking (at correct rate)
- the field of view shifts a little when playing with the focus
- the response of the focus screw is asymmetric, if I go turn clockwise, going one turn anticlockwise will lead me to a different focus than the original
- stars are "collimated" on the center of the FoV but not on the edge.

All this makes me think that the primary is tilted out collimation. For the life of me I cannot find any doc on how to fix this. Not even sure what the purpose if a tiltable mirror is.

I have collimated the secondary mirror recently.

Any help greatly appreciated, thank you!

Dimitri