Thanks RC, that made me feel a lot better :^)
That's it, all hands on deck, I'm going straight ahead with the AI conversion! ;^)
You're right, I'm no freakin' collector, I actually use this stuff, and the conversion is going to let me use it. Yes, it seems very logical now. It should have been converted anyway in the first place, and I should make sure it happens before I lose the opportunity.
I'm going to talk one-on-one with my parents. You're right, this is the right thing to do, and I won't regret it. I can just imagine myself years from now still using my grandpa's lens (perhaps even professionally)... :^)
I can't thank you enough, you've really set me in the right direction :^)