I'm using Olympus EPL-3 camera for 4 years now. I have a kit 14-42mm lens, 40-150mm lens and later i bought a prime Olympus 45mm 1.8 lens. I don't use 40-150mm, i hate to use 14-42mm, because 45mm gives me so much better result every time. Colors, sharpness, bokeh (on portraits), contrast - everything is much better. So 45mm became my go to lens for everything and 14-42mm was used mostly in city shootings when i needed a wide shot. I went for m43 from DSLR because i wanted COMPACT but powerfull package to work with. I'm shooting kids and people a lot + street/cities etc. 45mm is great for kids but it is too long for city or indoor shooting. Now, time has come for me to buy a new camera. I'll buy Olympus OM-D M10 or mark ii model if it comes soon and will be a good upgrade. I intend to sell 14-42mm and 40-150mm lenses and keep 45mm 1.8. I want to add another wider, fast lens with high picture quality. But i just can't decide. I still want a compact machine so zoom lenses are out and 14-42mm zoom pancake is just not good enough. After reading all reviews and forums, Olympus 17mm 1.8 just isn't as good as some other lenses out there so that one i out. Olympus 12mm is too wide for me. So now i'm choosing between two options: 1. Panasonic Leica 15mm 1.7: great IQ, sharp, fast, expensive. Problem: Besides being expensive it is also large and 15mm could a little bit too wide (not sure). 2. Panasonic 20mm 1.7ii + Samyang 7.5mm, 3.5 Pany: great IQ, sharp, not so expensive, SMALL. Problem: 20mm could be a little long for indoors, but i think it is ok. SLOW AF (that could kill my kids shots, and i shoot my kids a lot). Samyang: i would use it for real wide shots, building indoors, streets,... Cost of both options is very close together. What would you choose? You can give other options aswell.