|
Hi Barry,
Yeah thats a tricky word isn't it. I had trouble with it myself for a while.
OK. Unless you have a very expensive laser collimator, they can tend to be a bit sloppy in the draw tube.
Then the way you secure it (with the two or three grub screws) can effect the collimators central position and/or way the laser is aimed.
Depending on the size of your "error", this could account for the difference.
So just try adjusting the relative tension on the drawtube screws.
BTW This can be further exacerbated on the skywatcher because the eyepiece holder itself is also held tight by grub screws as well. (Well mine is anyway - 10" flex-dob)
Just a thought.
|