As of today on Ebay, an A7 body can be had for just over $1000. The A7 mkII is would be nearly $1600. I'm coming from Olympus where the 2-axis IBIS actually ruins images; but the 3-axis is nearly as good as the 5-axis on the OMD series. Now, from what I've seen, the mkII doesn't actually have physical 5-axis stabilization--unless if a stabilized lens is attached (whereas I prefer adapted glass anyway). So, I'm guessing that this "5-axis" IBIS on the Sony is NOT as good as the 5-axis on the Olympus EM1. However, perhaps it's as good as the Olympus 3-axis IBIS? Also, I'm hoping I don't experience any of the blur I get with 2-axis on every single shot? (Everything here is based only on what I've read and assumed, so correct me where I'm wrong). With the good Olympus high ISO performance and owning 3-axis stabilized camera, buying an A7 mkII with great ISO performance, in all honesty, hand-held in low light, I'd be gaining....1 stop? So, I'm not bashing here. I'm just asking for input from anyone who has more experience with the actual cameras than I do. Is the dynamic range, ISO performance, artful shallow DOF, etc., of a FF sensor worth the price and size? Sure it is. Is the 5-axis IBIS on the A7 mkII worth $600 over the original A7? I'm not sure. Hmmm. Thanks!