The NTG-2 is longer than the NTG-1 and may hang over the front of a camera to appear in wide shots .. but it'll be easier to sell later on because of its battery option.
Cheers.
NTG 1 is cheaper .... NTG -2 with the power option, BUT if you use it a lot the battery compartment , the joint will get a bit loose, sometimes have a bit clip sound if you move your boom really aggrrassively, my NTG-2 is taped the battery compartment to make it silence, now become a longer NTG 1....
As long as you have phantom power.... it's the same. NTG-2 long nicer, but it s longer hahaha
Cheers
I just bought the NTG-2 because I felt like I can use the mic during situations where I wouldn't have phantom power and it was only $20 more so it wasn't that bad of a difference.