Canon lenscap / telescope 1.25" eyepiece adapter

Fitting an eyepiece from a telescope on a camera lens creates a simple spotting scope.
The hole is 1.25" which seems to be the most common size of eyepieces.

I found that with this design the eyepiece gets a little bit to close to the lens (but that might be depending on the magnification/length of the eyepiece). With a 1-2 cm tube from the hole there would be more options for adjustments...