I'm looking for a new lens for my Nikon D7100 camera, I currently have a basic 70-300 Nikon lens, which has gotten me good shots in the past, but I want to upgrade. So, I come to you for advice on deciding which lens is better. I mainly get my camera out when I travel, or attending a sci-fi convention, which can be anywhere from good to not so good lighting, considering the conventions are indoors.
Anyway, here are the lenses:
Anyway, here are the lenses: