I've had the opportunity to play around with some newer digiscoping adapters both for smartphones and for SLRs. When not using my iPhone 5s to take pictures and video, I've been using my Nikon V1, which is a very good camera and generally I use with the Swarovski TLS APO adapter.
The Digidapter is designed so you can set your camera on it and then the hood will fit over the eyepiece. Currently, this adapter will work on Swarovski, Zeiss, Leica, Kowa and Celestron. The owner is able to custom make adapters, but those will probably be a different price than what's on the website.
What I thought was cool about this Digidapter is that it fits a number of cameras--perhaps even a few point and shoots. But the really cool part is that the biggest beef I have with "universal" adpaters is that they tend to be futzy--you have to make constant adjustments. You screw the bottom of your camera to the Digidapter and then make adjustments to how it lines up with your scope eyepiece. The cool part is that the two red nuts on the adapter are adjustable and help you keep track of where to place your camera after you take it off the adapter. Once you know where your camera fits on the adapter, you slide those to the front of the camera and tighten and viola--you always know where the camera needs to go on the adapter.