My impressions of comparing width models, including this wonderful Nikor, I outlined here: http://color-foto. Com/test-shirokougolnih-obektivov-sony_-konica-minolta_-canon_-nikon-nikkor-v-kontrovom- svete-na-bliki/ Professional photographers will be interested in this, but others, I'm afraid, will not understand. But working against the light is a damn important option for interior and landscape photographers.