I have a Skywatcher 200p Dobsonian and wanted to use my 600D to get some better shots of the moon and planets than I can with my long lens. I have bought the T and SLR Ring which I have then plugged straight into the 1.25inch in place of the eyepiece. However, I can't focus on any objects in the sky, Jupiter and Saturn just looked like fuzzy doughnuts last night. Perfectly circular which is a start but still completely out of focus.
This afternoon I thought I'd have another go in daylight and pointed at some trees approx 100-120ft away and the leaves were in focus with the focusser wound all the way in. With it all the way out I could focus on leaves on a shrub about 60ft away.
I assume therefore that I need to get the camera closer to the tube but how? And how much? The tube that is screwed into the part that fits into the 2inch eyepiece holder is about 1.25 inches long but can I replace this?
Does anyone have any ideas please?
I can focus using normal eyepieces so don't want to resort to moving primary mirrors which was mentioned in another thread. As this is primarily being used for viewing not photography.
Thanks very much for your help in this matter.
Steve