Re: [ATM] Collimation with a laser

["Nils Olof Carlin" <nilsolof.carlin@telia.com>]

Peter Pissias wrote


> In collimation articles it is said that the focuser must
> form a 90 degree angle with the center line of the tube, and
> the primary mirror (and the secondary) must be centered within the tube.

Luckily, both statements are false.
>
> My primary isn't exactly centered within the tube and
> i haven't measured the angle of the focuser (it seems
> to be ok but i haven't measured the angle).
>
> With the laser collimator, i have collimated my scope (the
> laser beam, returns to the source).
>
> Is there a possibility that my scope isn't collimated
> because i haven't measured the exact angle of the focuser
> and the primary isn't centered?

Not for those reasons, at least - but the laser may not be the best way to
collimate the primary.

Nils Olof

_______________________________________________
ATM mailing list http://www.atmlist.net/