Nikon Micro NIKKOR 55mm f/2.8 Ai-S Lens with PK-13 extension tube

(I bought this Micro NIKKOR 55mm f/2.8 Ai-S Lens more than a decade ago for general purpose macro use. Go. yourself!). and maybe, maybe 2 rolls of film. For general purpose walkaround, I'm more 35mm than 50 or 55, and if I want 50/55, I'm much more likely to grab my favorite 50mm E series.