you'll get vigneting (dark corners) if the bino is small. also, you need to be able to fix the bino to the camera. you may also lose autofocus because there is too little light coming through to the camera.
Ok did a search on digiscoping but that isnt exactly what i was looking for. I'm just trying to see if i can shoot using a pair of binoculars. Well, I tried using my cam on a 10x25 bino but cant exactly see anything... Maybe cuz its evening? Will try again tomorrow. Btw, do i have to enable macro mode, or zoom in cuz when i pointed them at the lights, i see a tiny circle. Zooming in did enlarge it, but it was off focus, or maybe there wasnt enough light... anyone tried using bino to shoot before?