I’m curious of these choices and would like to understand the (almost) overlaps of your selecting 28mm/28mm/24mm/20mm + 15mm/16mm. But for the 28-to-a-fisheye (or 28 to a 20) I might not even notice much difference. But that’s me. These are six lenses in near similar range (fisheyes excepted) including one relatively small/light zoom of up-to-300mm.This Fall I am going to Europe… This time I am… taking one of the Nikon AF cameras… the Tamron 28mm to 300mm AF zoom lens, a Nikon 28mm manual PC lens, a Nikon 24mmAF lens, and a Nikon 20mmAF lens definitely. Possibly the Nikon 15mm AIS 110 degree wide lens and or the Nikon 16mm AIS Fisheye lens.
My amateur self would think take the zoom + one fisheye and done! Why so many 20’s? Teach me.