I mainly use adapted lenses, but I want to keep one native lens mainly for using my flash so I can use all the PASM settings on the mode dial. I recently acquired a Sony 28mm f2 FE lens, and while it's alright, I find my Nikon 28mm 2.8 AI-S lens to be optically better. So I'm debating whether or not I should keep it or go for the Sony kit zoom instead? I like how the 28mm f2 is compact and I know the 28-70mm is a bit more bulkier and has a flimsier build. From most reports the 28-70mm seems decent across the focal range and I can acquire one cheaper. If you could pick one lens solely for flash and general usage which would you pick? Thanks for any opinions!