數碼相機可拍Lomography嗎?

why not, just use a Canon 350D or Canon 400D
and a fisheye from sigma ... or some other canon mount for some old russian lens...
put a filter in front of the fisheye, and some cardboard to block light in front of your fiter ... to mount on the fisheye ...
you can even do lomography with postprocessing using photoshop on deformation ...