I read this "Well, I tested my A7R on a tripod in my backyard in 'field conditions' using a 600mm Mk II Canon lens with the metabones adapter. At f4 (wide open), at 1/10s, there is NO shutter shake. Sure the image gets a bit sharper at f5.6 1/800 sec, but you would expect that."... I am not sure why use BOLD letters proclaiming absence of shutter induced shake @ 1/10s :-) whereas everybody knows that it is not the shutter speed to test for it (if you want to isolate its effects and not other efects like when you have a really bad tripod/head/whatever)... as for your testing @ faster 1/10 you indeed write = "I found nothing from 1/10 to 1/800 that would suggest shutter shock.", but that's another story, which in liew of your special accent on 1/10 exposure speed does not add any confidence in you as a tester, sorry... now reread how testing was done by Lumo and repeat (pay attention to the whole mass of camera/lens combo too - you might want to repeat it w/ FE lenses or so... I am getting way less shutter shake when I am using E-M1 with battery grip and P35-100/2.8 vs E-M1 alone with P20/1.7 and with the E-M1/P20/1.7 combo I am getting it in 1/100-1/200 shutter speed range... )
sorry, I thought it would be obvious if I said that 'sure things get sharper at 1/800' that I tested at many different speeds in between. My bad.
I also admit I am not a pro, do not make any money from photography and could hardly call myself an 'expert' of sorts and so yes, perhaps I am not the right kind of 'tester'.
However, I also find that there is way too much internet hype about this and many other issues. I do own (and have owned) expensive camera gear (the IQ180 for example) which while it does not qualify me to be an authority on anything, should at least suggest that I read a lot about photography and equipment and (hopefully) spend my money wisely.
Which is why, before investing further into the A7R lineup (I already have the Nex7 with a lot of Sony and Leica glass), I wanted to make sure with my own testing if the shutter shake is really an issue (for me) or not. So I set up a simple target in my backyard (yes, I do have Edmund Optics' resolution chart etc, but didn't want to use that, the idea being to simulate field conditions) for the test.
Yes, there are many things that can cause a blurry image at 1/10 sec with a 600mm lens on a tripod. Point is I got very sharp images all through from 1/10 to 1/800 sec.
It does not matter to me the least if you are not convinced in any way, that was never my intention. I am happy with my results and that is all I am concerned about. Wanted to say this for the benefit of others like me who may be worried about the 'shutter shake' phenomenon, that it may not affect all copies of the camera or perhaps there is some as yet undiscovered reason why not everyone has experienced it (and yes, I have discussed this with others who own the camera).
FWIW, I also tested (yes, the same 'crude' backyard test) my 70-200 f2.8 lens, my 24-105 f4 lens at various speeds, handheld and on tripod. No shake.
Again, I am not interested in duplicating anybody else's methodology. Just wanted to satisfy myself that my camera is alright, which it is. Now I can happily go ahead and order the 24-70 and other lenses as they become available.
Regards.