Just got the K-1 + 28-105 bundle a week ago, so still learning... I'm inspired by the great shots here.
Here's a monochrome conversion done out of necessity. Bringing up the black shadows in color resulted in a very strange red cast, so I used Silver Efex2.
It's raining here in the SF Bay Area today, so I tried a naturally backlit shot with the D-FA 100mm WR at 2.8. This was exported from LR with default sharpening (25) only. It looks like the old school OOC approach can work with the K-1 and some legacy lenses.