So i currently have the Panasonic 25mm that i am planning on getting rid of because i need something more lightweight. I can't decide what lens i should trade it for. Which one is the better of the 2? They are both similarly priced, now i just need to pick one of them. I am looking for the lightest combo either with my G3 or my EPM1 (which i may get rid of as well) Edit: My options are as follows: 1.Trade in the Panasonic 25 and 14-42 kit lens at local store and order the 25mm olympus 2. Get Panasonic 20mm in a month or 2 when i have the money 3. Get Panasonic 20mm and Trade in 25mm and 14-42 kit lens to buy one of the sigma lenses What do you think?