I ask this after finally deciding to purchase an SMC K50/f1.2 instead of the new mZD 45/f1.8. Prior to this, for me adapted lenses were interesting and cheap - and in a few cases I already had them from my film kit. But they were something additional - an extra for when I was bored... But this is the first legacy lens that I've bought instead of a comparable 'native' lens - comparable in the sense that the price I paid for a mint 50/f1.2 was almost exactly the same as what I would've paid for a brand new 45/f1.8, and all the modern conveniences that go with it. So for me, adapted lenses (and manual lenses) have gone from being novelty extras, to actually being my primary kit - if I was to travel the world today with a single bag of lenses, I'd take the 7-14/f4, Nokton 25mm and SMC 50/f1.2... So what role do adapted/manual lenses play in your photography?