Hello fellow CSers
I need your advice on some lens selection
Heres the situation
I currently own a D90 + 18-105 kit lens
and a prime 50mm f/1.8
i am eyeing on the tamron 17-55 f/2.8 lens for quite sometime now.
Got a friend offereed to sell me his 18-200mm VR at 700.
i only have budget to buy 1 lens @ 600.
Should i :-
1) sell of my 18-105 for the 18-200 and forgo my chance of buying the tammy 17-55?
2) Ignore my friend's offer and carry on to get the tammy 17-55?
please advice me what are the better options