I'm trying to decide between a sigma 50mm f1.4 or sigma 30mm f1.4 prime.
I think that part of my problem is indecision what i want to really get from it.

I am inclined for the 50mm for its portrait value and general use in travel, small events etc...

i have a 17-70mm and a 70-200f2.8.

on a k5 .. 50mm--70mm

please help me think..