$50 · Vivitar "Series 1" Zoom lens

Now vintage but this was (still is) a sophisticated compact zoom lens that also does Macro focussing. F 2.8-3.5, zoom from 28 to 90 mm. A single 'all rounder' to replace the standard 50 mm lens, a surprisingly wide angle as well as a decent telephoto especially as a portrait lens plus macro focussing. Nikon mount