This is something I wanted to test to help clarify where I want to go with my gear after buying the A7r. This is a two part comparison, firstly for stills in this post and secondly for video, which I will do later. The second I really don't which is better for me, but for this I could guess the outcome before starting. And some might say - 'Is it a fair comparison?'
Well yes I think it is. When m4/3 first started it seemed difficult to convince some DSLR owners that decent results could be obtained from this small camera with it's small(ish) sensor. But now it's almost gone the other way. m4/3 is currently 'talked up' into being something I think it isn't on certain sections of the camera owning internet. I've personally been very surprised by some of the statements about the E-M1 for example. Touting it as some kind of 'super camera'. Now as regular and long-time readers will know, I am and always have been an enthusiast for the m4/3 system and I see no reason to not continue doing so. But there needs to be an acceptance of realities here on the part of some other 'enthusiasts.' I do now get taken to task occasionally for daring to suggest that m4/3 is still pretty dismal at high(er) ISO settings. And while there have certainly been improvements, I personally cannot see how any current m4/3 camera could be described as even having a 'decent' high ISO performance. Much as I like the cameras for what they can produce at their base ISO, anything above ISO 800 is pretty poor as far as I'm concerned and to be avoided if at all possible.
So, I have no reservations about posting this comparison. If m4/3 cameras are to be regarded as decent all-round cameras then their performance at high ISO's has to be a consideration. As I've written often enough, that's never been a priority for me and what I take pictures of, but for some it is. I think it's therefore legitimate to show just what a gap in quality there is between one of the best m4/3 sensors around on the GH3 and what is in my opinion the best digital sensor yet produced.
I've included three 100% blowup comparisons at ISO'S 200, 1600 AND 6400. All three are out of camera jpgs.
If you want to have a look at all the jpgs. and raw files, including all the other ISO settings between 200 and 6400, you can download a .zip file from Google Drive HERE.
For my continuing SONY A7r OWNER ASSESSMENT - Click Here
N.B. to see more on the cameras and lenses featured in this post click on the relevant labels (tags and keywords) at the bottom of this post.
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