Hello, I'm slowly exploring the fascinating world of adapted lenses and I found a few interesting pieces of glass. Unfortunately, I'm still very new to the world of photography and I'd love some advice on these two lenses: 1. Makinon 24-50mm 3.3-4.5 Macro 2. Vivitar Series 1 28-105mm 2.8-3.9 Both are in mint condition. The Makinon comes with both caps, the original case and even the original box! The Vivitar comes with both caps and original (leather?) case. Any advice on what I should do with these? Thanks!