Big Beercan (75-300) and LA-EA4 adaptor adds alot of heft to the A7. Balance is perfectly fine. AF speed is fast and very accurate.
Unfortunately, I don't have a pic of the setup, and office firewall does not allow me to upload.
Mine's the mid-sized beercan. The 70-210
I actually prefer the more popular 70-210 rather than the 75-300, having used it ages ago on my old A850. Now regretting having sold all the old gear away, would surely come in handy in case I decide to get the A7/A7r. Just want to find out if the performance can be good enough on a 24/35mpx sensor, so I can go and hunt for a good copy after I get the cam.