Yea Grant we have all been there at one stage.
I was setting up for imaging, and went through the usual procedure, you know check this, put in that and so on.
Well after a considerable amount of time I just gave up, do you think I could see anything through the guiding scope.
Came back in the morning to the observatory and had another look, yep you guessed it I had left the cap on the end of the one that you cant see, and wondered why nothing was visible through the scope.
Leon
