My Canon 5D is officially replaced by a Sony A7 now. So I'm now 100% mirrorless. It's a good feeling. And of course I need to say that I have no intention of leaving μ43. Certainly not. I'm still weighing various options though. The original plan was to have the Sony function entirely for manual lenses and legacy glass. And I cannot tell you how satisfying it is to have my all MF lenses gain back their original angle of view. The Konica AR 50mm f/1.7 looks brilliant and nothing can touch the Canon FD 85mm f/1.2L. Anyway, the one thing this move did do was get me to finally pick up a fast 35mm. I've had the Voigtlander 17.5mm f/.95 for a while now. So when I saw a Voigtlander 35mm f/1.2 at a incredible "Buy it now" price on Ebay a few weeks ago. I went for it. So now I'm spending a lot of time testing the two lenses and trying to decide whether or not the 35mm f/1.2 replaces the 17.5mm. And I have to say, its a lot harder than I anticipated. The 35mm is certainly sharper at f/2 than the 17.5mm is at f/.95. In fact, I would say that its a little sharper even at f/1.4. Conversely, despite what many people who have drank the FF cool aid have claimed, if you're shooting still subjects, there's no way you can replace Olympus' 5 axis IBIS with improved high ISO. The improvement in high ISO on the 35mm sensor just doesn't make up for it. And as for depth of field, the difference isn't that big. E-M5 & CV17.5mm f/.95 A7 &CV35mm f/1.2 So now I have lot's of thinking to do...not sure about the answer. My wife and I do both share kits, so maybe it wouldn't be a problem having both...still thinking about it.