Rahul said:
So, who all are moving over to Nikon / Sony?
I was using 1Dx for several years and mid of the last year I bought Sony a7R and use it now with Canon TSE-17 and 24-70 m2 lenses as walk around camera for still images (not for sport/events/actions) and like very much look and quality produced by a7R.
1Dx still has no competitors for action/sport/events etc. photography except for Nikon D4s which had actually better than 1DX for low light photos.
Few month back bought Sony a7S to try and see what it is about.
I was a bit skeptical about low resolution but I was much impressed when started to use it.
Now I am using a7S most of the time as walk around camera especially for low light photos.
It is just amazing camera. Even with low-resolution (only 12mpx) images produced by a7S look and feel is if they were made with higher res camera and they are so clean that I could not believe that it is possible before. Now even 1Dx is used much less frequently but this will stay with me until 1DX2 comes up .
I had high hopes that new Canon Hi-Res camera would convince me go back to canon from a7R ( I considered that as temporary solution until new Canon Hi-Res body) so that I would be able to use available Canon lens in more convenient way than on Sony a7R but looking at 5Ds/5DsR sample images I was really disappointed. Images from a7R (with Canon lenses) looks more pleasant to me and more clean especially in shadows and sky.
Always was tempting to go to Pentax 645z but this is too big change for everything. May be eventually will go with Pentax 645Z II.
So now will be waiting what would be next Sony update with hi-res sensor.
I believe this will be step forward compared to what they have in a7R.
There is interesting picture with Sony roadmap from sonyalpharumors rumors
2015 seems to be year when they are going put all their recent innovations (tested in recent cameras) in the new body expected to be announces soon. And their approach seems to me to be movement in right direction
http://www.sonyalpharumors.com/new-megapixel-monster-frm-canon-dethrones-the-a7r-in-terms-of-resolution/