It did arrive friday to my hands. It focuses about 1 meter when held close to the mount and I have a picture to show it. I couldn´t wait so I tried -and I was surprised it is possible- to shoot just holding it with my hand.
It promises a lot of fun.
Glad to hear it!
Yes, you can shoot with it un-mounted from the camera and in fact I do that all the time with Heligon's and other odd lenses for testing. I have one of those M42 - Nikon F mount adapters with the correction lens in it that I mount to the camera so the sensor doesn't fill up with dust, then an M42 to to 52mm adapter screwed into that with K-extension rings to block stray light. I have a couple different Heligon's I have yet to mount that I use in this way.
I look forward to seeing how you use your new lens.