I am unable to find a fine nib gel pen that will write on photographs without smudging. Something that will dry fast. Also is there a knack to using them. I intend to write carefully in the bottom left and right corners i.e. Banff 2008, signature or company name.
There are pens that are made specifically for writing on photographs, but they aren't gel pens. You may want to try google for "photo pens" or something.
