I've been working on putting together two trinities for my E-M5 based on size. I have a 9-18mm, 25mm, and 45mm as one trinity that'll fit in a bag and then I'm also building a pancake trinity that I can distribute across a couple pockets. Currently, its merely a binity, though... E-M5    ---    0mm    f/1.0    1/30s    ISO 400 Voigtlander 35mm f/2.5 Color-Skopar & Panasonic 20mm f/1.7 Originally, I had intended to make the Panasonic 14mm f/2.5 as the third member of this little group, but I'm wondering now if perhaps the new Olympus 15mm body cap lens might do the trick. My only concern is that I'm still lacking a indoors/lowlight wide angle prime, a role that the 12mm would fill reasonably well. IQ-wise, some images I've seen from the 15mm f/8 have looked surprisingly good and others have looked surprisingly bad... Any opinions about what you might do if you were in my shoes?