thanks alot guys, still considering whether taking 17-50 or 28-75 first hmm.. how about the sharpness of the lens? which on better within these 2? does 17-50 result more wide end?
To choose between this 2 is simple. What lens currently you have?
You need to know, 17-50 on your D90 will have the equivalent of 25.5-75. So if you choose 28-75, it might not be wide enough for you. But again, some people find that 28*1.5 just nice for them.
