Hasn't happened yet—I'm taking it slow. Last week I brought it up with my dad and he got all angry. He's going to be the hard person to convince. He's saying stuff like "I'm not buying you anything" and etc. I told him that I'll pay for it and all but he's not budging. I'm thinking about bringing it up again tomorrow after he's had the weekend to rest—he's an anesthesiologist and some days he works through the night.
I think the problem is he watched me wreck my D300, and he doesn't want to watch me have the same happen to my lens. I even dug up a lot of the photos I took using it and that hasn't helped at all.
I'm not going to rush it, since it's not urgent or anything. But as long as I keep on mentioning it, I think I'll convince him. My mom understands I think. After all, the lens belonged to her dad.
When my dad used his D70 he never mounted that lens on it because he thought it was too old and incompatible. My dad just won't do things like that. I've been the "risk-taker" so far.
I'm not letting go though. I promise to keep you updated. After all, didn't it take me some time to think it through? I think he just needs to do that too.
Personally, I think you gave me great advice. Unfortunately, not everybody does :^(