Originally posted by Nicolas06 I don't think any mirrorless beat a D5 at AF man... In addition, mirrorless mount typically lack the necessary lenses anyway.
I had to prove that claim myself. I investigated latest m4/3 cameras and lenses, tried them for a while, and my conclusion was that
m4/3 is a ready system. Top m4/3 cameras (latest Olympus was not there) are agile as any excellent crop DSLR. And more. The EVF in Panasonic GX8 is bigger than viewfinder in the K-3, in fact, it is bigger than viewfinder in many FF DSLRs. Touchscreen tech works great, and even in cheapest m4/3 bodies from Panasonic one gets fantastic video capability. Leica and Panasonic issued a list of quite impressive small lenses, Olympus too, and third party lens makers are issuing lenses for the m4/3.
In conclusion, I can't tell that in mirrorless world lenses are missing. I was reassured in quite the opposite. Some lenses are true gems (I tried Leica 12/1.4). Cameras are amazing too, and very easy to use. (I mean Panasonic cameras have very nice UI). Now the GH5 is coming, I think, and based on that new camera Panasonic will release next generation of the still-oriented GX9 or whatever else.
However, GX8 is already so good; it is weather resistant, large enough for man's hands, sturdy, it is blazing fast. Panasonic and Leica both issued a list of fantastic WR lenses too. So it is an all weather camera. I think GX8 is far better value than Fujifilm's crop cameras, and m4/3 offers more lenses. I won't compare it to Leica SL, which is, I think, best quality modern mirrorless camera ever made by man, but in terms of consumer photography, current top m4/3 from Panasonic are fantastic cameras and lenses and
can comfortably replace crop DSLRs. Now, whether you will make that step or not depends solely on your individual style, ideas about photography, and whether you still prefer DSLR. But the alternative is there.
The partnership of Panasonic and Leica is one of best in today's imaging industry, and its results are unexpected, pure gems. I am quite surprised how well it works, and I think the result are the bidextrous cameras, more pleasurable and easier to use than, say, Olympus cameras. If you don't believe me, I suggest you visit some good gear shop, and try yourself.