The sharpness of the Sony RX1 vs. DP2 M

To be honest I cannot judge the performance of the Sony against the Sigma based on some candid snapshots posted on the web.

For me personally I have a list of camera attributes that I use to evaluate a camera system to determine best fit for my needs.  Each attribute has an assigned weighting but that is used only to sort out the list of possible candidates.  Trade offs are common in any evaluation and most of the time the ideal choice is not within the selection group.

For example of factors used; being able to import the raw files into Lightroom is high on my list since that is a key part of my work flow.  Another example is low light focusing and IQ at high ISO, since I often shoot in low light levels with moving subjects, and overall sharpness is desired.  HD video capability is also on the list since once in a blue moon that is required.  Surprisingly cost is near the bottom of the list since having the right tools makes all the difference in those once in a lifetime shots.

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