Trying to use Canon 60D DSLR with Skywatcher 130P. Can't focus image I have a Skywatcher Heritage 130P FlexTube Dobsonian Telescope. It works well, I can see lovely stars, planets, moons of Jupiter etc.  It came with two eye pieces (1.25 inch): 10 mm and 25 mm.
I also have a Canon 60D camera.
I've been trying to attach the camera to the telescope using a Celestron 93640 1.25 Inch Universal Barlow and T-Adaptor which I originally bought for a Celestron Travelscope.
I have never been able to get any kind of decent image out of the camera when attached to either  telescope. Am I doing something daft? (This is all new to me).
Steps I take:

Set up and focus the Skywatcher scope on some nice stars using the 25mm eye piece.
Remove the eyepiece.
Insert the camera with Barlow and T ring where the eye piece was.
Diddle around with the focus. Try and take some photos. Get nothing remotely in focus, not ever a blurry star.

I suspect I have the same issue as described in Astrophotography - Unable to achieve focus with current setup If so, please could someone advise the adapter I would need for the combination of camera and scope I have? I'd prefer to use the DSLR than buy a digital camera if possible. (Many thanks, and sorry if this is a daft question.)
As you suspected, the problem is probably that, as with most Newtonian telescopes, the image plane is too close to the outside of the tube, so you can't physically get your camera sensor close enough to the image plane.
There may or may not be adapters that will solve this problem for your specific telescope and camera. Barlow lenses help but aren't always enough. Luckily your telescope is collapsible, so you should be able to bring the image plane far enough out by collapsing the telescope a little. Attach your camera to the telescope as before and slowly collapse the telescope. You should see the image gradually come into focus.