I do not think you will get the same skin tones with the S3. I do not own either camera but from what I have seen the S2 is hard to beat. The S3 looks very good but the S2 looks to be right on the money.
I found out wich portrait you mean.
It's my daughter.
That shot was done with the sigma 50-500.
I have changed that lense later for the nikon 80-400 VR
Sometimes i still miss that sigma lense.
It's bulky but tack sharp and fast focus.
I only bought the nikon for the VR system wich works great.
