Nemoskull, welcome to the madhouse: you will find, over time, the meaning of GAS and why an elmar beats a tessar but not a sonnar: and a Heliar beats them all, except a Summilux. You may become obsessed with hunting the Russian 85 f1.5 or the Olympic Sonnar or the 35 f2.8 Summaron. Take my advice and just take pictures and don't obsess about stuff