I did some very interesting tests with the DP3M this afternoon. I was curious to see just how much detail this little camera can resolve in ideal conditions ... ie on a tripod at ISO 100 focused on objects around twenty kilometers away. (Brisbane city high rise)
The eye opener for me was how soft the lens is at f11 and f16 ... detail just disappears at f16 and is not a lot better at f11. It really starts to improve dramatically at f8 and appears to be sharpest at f3.5 and f5.6 ... I'll post some samples later.
Those two apertures are seriously not worth using if you're shooting landscapes from a tripod.