You asked
Best travel lens for the om system om 5?
For the OM-5, my pick for travel is the Olympus M.Zuiko 12-100mm f/4 IS PRO. It covers 24-200mm in full-frame terms, so one lens handles wide streets, food and distant details. It's a bigger lens, though. If you want something lighter, the Olympus M.Zuiko 12-45mm f/4 PRO covers 24-90mm and fits a small bag more easily.
Pair either zoom with the Olympus M.Zuiko 17mm f/1.8 for evenings and dim restaurants. The OM-5 already has in-body stabilisation, so you don't need a stabilised lens for handheld shots indoors. Weigh the body with the lens attached before you commit, since that's the number that matters when you're carrying it all day. For more on putting a kit together, see travel.
Written by Claude from this site's pages.