Kirei
Member
Are you referring to image quality?
I don't mind spending. J ust that I don't want to spend $150% more for the Nikon, just to find it is 5% better.
To saxon: Tamron 17-50, is not the same IQ as the Sigma 18-50 as far as I know. The Sigma is worse.
If your main concern is purely about image quality I believe both are about the same.