I sold a lens last week, 70-200 2.8 IS. Not to anyone here. The guy I sold it to lives out of state and says that the zoom is "3-4 x tighter" than his other 70-200's.
While in my care the lens was never dropped or abused in any way. It shot beautifully, btw. I used it for sports, birding, closeup, etc. As far as the zoom goes, I never had anything to compare it to besides an old 28-105 which is in a whole different class.
What could be the problem here? Could there be 70-200's that vary in zoom tightness and this one happens to be tighter than most? Date code is 2004.
I don't know if I'm being scammed, but he now wants something done about it. Refund? Allowance for repair? If I take it back and now something's wrong with it, what then?
S&H + insurance cost me $31. PP was another $30 that we agreed to split.
What would you do?
Thanks for any advice.

