Hi, I was looking for help on a comparison, or rather a question of how big of an upgrade the Rokinon 12mm f2.0 would be. I currently own the Panasonic Lumix G 14mm f2.5 lens and feel it is decent but not quite as powerful as my Panasonic 20mm f1.7 (especially in low light). The rokinon 12mm is $309 on B&H Would the 12mm / f2.0 be a huge upgrade or just a small incremental upgrade from the Panasonic 14mm lens? Is it just me or do the photos coming from the 14mm appear mediocre compared to other lenses? I really like my shots that come from my 20mm and I also have the Rokinon 7.5mm fish eye and love taking such wide shots for landscapes and trick shots on the street. So I think based on this...looking for improvements in street photography and low light. Also trying to find a good all around lens (also considering buying a 25mm and 45mm in the future). I am currently in possession of a Panasonic GX1 and GX7. Thank you for any valuable input you can provide!