So I'm trying to decide between these wide angles and need some help. I just want a nice wide that will be able to shoot decent to good in low light situations. Option 1 Canon 20mm 2.8 Canon | Super Wide Angle EF 20mm f/2.8 USM Autofocus | 2509A003 Option 2 Sigma 20mm 1.8 Sigma | Super W/A 20mm f/1.8 EX Aspherical DG DF RF AF | 411101 So the question is, am I really going to need that difference from 2.8-1.8? Will it help a lot? Also is it worth giving up Canon quality? Or is the Sigma a really good quality lens? I'm open to other suggestions within that price range as well. I'm looking for a nice wide lens that doesn't have too much distortion and works pretty well in low light. Sorry if this is the wrong forum. Thanks in advance.