just got into m4/3 with an Oly E-PL5 ( i know, kinda old) wanted something with a little longer reach than the 14-42, so i bought a 40-150 on ebay for $110. it seems nice enough, for a kit lens, but now i am thinking of maybe getting a prime lens. something for low light and/or portraits. i have heard a lot of good reviews on the Oly 45 f/1.8 I have also been looking at the sigma 30mm f/2.8 and 60mm f/2.8 the 75 f/1.8 is more than I want to spend on m4/3 right now, and AF is a must have. any lenses i have missed? any panasonic options that might be worth looking at over the Oly and Sigmas?