>>3254833OP here, thanks for the help so far. I'll do my best to answer your questions to narrow down what I might need.
I'm a hobbyist photographer who has made some small cash from photography jobs. If I had a long term plan, it would be to work as a portrait photographer, as that's what I enjoy doing most.
I don't need anything more compact, the size of the camera I've been using has never been an issue for me. So far, I only have 3 lenses, but they are all Canon mounts; a 50mm f/1.8, a 28-135mm f/3.5, and a Sigma 18-35mm f/1.8.
I'm moving to a big city in China pretty soon and wanted to take advantage of the city lights at night.
>>3254839I feel you may be right... A new lens might be more appropriate...
>>3254858What prompted you to make the switch to Sony?
>>3254898All my lenses are Canon mounts, so I think it'd probably be best for me to remain with Canon for now at least. A full frame sensor is probably the most significant thing I'm looking for.