I did my homework and purchased a Sony NEX 6 mirror-less camera. What makes this little guy stand out is its big image sensor. It has a 1.5 crop factor, slightly bigger than the Canon crop sensors. The NEX is small, but delivers amazing images...right on par with my Canon 5D Mark 2.
Not only does the NEX 6 weigh almost nothing, the price tag is 1/3 of the price of the 5D Mark 2! The lenses are small too, but deliver amazing results.
The other great thing about mirror-less cameras is that you can buy an adaptor ring that allows you to use all the big lens formats.
I've tried the Nikon, Canon and Sony mirror-less cameras, and to me...the Sony is the clear winner! Another great choice would be the Fuji, although it is nearly double the price of the Sony. For sure stay away from the Canon mirror-less. It is terrible! They are supposed to release a newer model and correct some of their blunders of the EOS M.
For my landscapes, I went for the Sony 10-18. I am including a couple of shots from this camera. Email me with any questions. firstname.lastname@example.org
Keep you eyes pealed for a software class where I will show all me secrets! Comment on this post if you are interested in this class.