am torn between the Canon Eos 650D & Panasonic DMC -G5.(Micro four/thirds)
The G5 being not much smaller than the 650D in body & lenses.

I will use the video options available,
I am interested in nature photography,birds in flight etc
Macro & low light use.
Also keen to adapt the camera to a telescope for astro shots.
Both are newly released cameras so any info/advice would be great.