The problem is that I have a Pentax smc-M 100/2.8 that is really small and takes excellent images that are 2 stops faster than the Lumix zoom. The smc-A 50/1.7 can make that same claim. The GM1 has focus peaking so these small prime lenses are easy to adapt and focus with that little body.
The other mirrorless kit is the Samsung NX300 team. The white one now has the 16/2.4 prime and matching white 20-50mm lens, both quite talented but with no IS. The brown body comes with 16-50/OIS, and a 50-200/OIS is available for both. Since all are interchangeable this is an arbitrary alignment.
|Lumix 14-42ii and Pentax DAL 50-200wr w/o adapter|
taken by the Sigma 28-80 1:2
While the AF and especially OIS will be missed for a while (especially for telephoto shots!) these options are good ones. Indoor shot here was at iso8000 which works decently on the GM1.