Anyone that had 2 systems going narrow it to one and why?

Another thought I had was to sell the 6D and get a 7DII which would give me more reach and better autofocusing and the A7II for full frame.
Any thoughts on that?

To each their own. I am happy with the move to Sony. I have not found that for my uses the A7R2 does not meet my needs. Unless your primary use was birding or sports I would probably not move to a crop camera.

I too held Canon (6D which I subsequently sold) and bought into the A7ii primarily for manual focus glass. I bought into the Zeiss Contax Yashica line of lenses and held onto my Canon glass and am happy I did so. At one point I thought of buying a Canon body just for those times when autofocus is what you want, but then in November 2015 when Sony released their v2 software, autofocus on my A7ii using Canon lenses improved dramatically (nearly as fast and consistent as my 6D was), at least for my setup which is using the Metabones IV adapter on the camera. So no need for me to buy another body. Have you tried any form of adaption for your lenses on the A7ii?

As it is, I adapt my manual focus lenses to Canon mount, so the Metabones EF to E smart adapter markIV is my common mount on the Sony, the adapter is always on the body. I don't own any Sony native lenses. I only chimed in because I keep seeing a lot of folk go thru the same hurdle, but you can now use Canon lenses with a high degree of confidence on your Sony. I can only speak for the A7ii, and for my Canon glass - 24 IS, 50 STM, 100 IS L and 200Lii, and yes stabilisation sorts itself out across the systems. I can't speak for zooms, and I don't shoot sports. this path additionally allows me to migrate back to canon should I ever be swayed that way. It's technical development in the bodies that is progressing in leaps and bounds, hanging onto good glass just makes sense where possible. Not sure if I've helped address the topic, I certainly have 1 system, and it serves me for both manual and autofocus and draws on most of the strengths of the Sony platform. Hope this might help.

I had sony A mount and MFT, made the decision to go all MFT, sold the Sony gear and now regret it. I found the Sony A series very limited in third party accessories and now find out MFT is lacking in many areas as well like versatile, fast glass. I'm headed back to canon and I'll wait for the E mount Sony to mature. Till I can afford it is just about the right amount of time.

The a7R II has excellent AF and, at 42 MP, is reasonably close to the 7D II pixel density. I don't have your 70-300mm, but it focuses my EF 70-200mm f/4L IS impressively fast...about as good as a 5D III or my 5DS R. Best of both worlds perhaps?

id10t wrote in post #17835396
Another thought I had was to sell the 6D and get a 7DII which would give me more reach and better autofocusing and the A7II for full frame.
Any thoughts on that?

I have a7rII, 7DII, and A6300, recently I had 5DIII.

With a7rII and a6300, I haven't used 7DII in 5-6 months, I will end up selling it pretty soon.

I shoot mainly Canon, but I was given a Sony A7rII for Christmas. I've used it and it's a pretty dang sweet camera, but I can't seem to get my mind made up. I will definitely keep my Canon gear, but will also keep my a6000 and my A7rII.

Guess this didn't really answer the OP. Consider this balance?

i was a canon shooter for many, many years with weddings and what not. Coming from (2) 5d3's and a 6D with a lot of L glass. I decided last year i was going to be done shooting weddings after i finished my contracts up which was in May. I bought a A7ii to give sony a shot since i heard all the hype and scooped up a Sony 50 1.8 to try the camera with. I told myself if i liked the sony body, i would sell off all of my canon gear.

Needless to say, sold off all of my canon gear LOL. I truly love my sony and am glad to be down to one system that is much smaller, lighter and better suited for walking around car shows and hiking with. Only thing i miss is all the lenses i had for my canon kit, but now that i am not shooting weddings anymore, there was no real reason for me to have them all anyways.

irishguy0224 wrote in post #18098082
i was a canon shooter for many, many years with weddings and what not. Coming from (2) 5d3's and a 6D with a lot of L glass. I decided last year i was going to be done shooting weddings after i finished my contracts up which was in May. I bought a A7ii to give sony a shot since i heard all the hype and scooped up a Sony 50 1.8 to try the camera with. I told myself if i liked the sony body, i would sell off all of my canon gear.

Needless to say, sold off all of my canon gear LOL. I truly love my sony and am glad to be down to one system that is much smaller, lighter and better suited for walking around car shows and hiking with. Only thing i miss is all the lenses i had for my canon kit, but now that i am not shooting weddings anymore, there was no real reason for me to have them all anyways.

not a wedding photographer, but I feel the same way, it wasn't fun running after by kid with a 5DIII and my eye glued to viewfinder, sony system is so much smaller and works much better.

I have gone from Nikon to Canon and now to Sony. I still have all of my Canon gear, except the nifty fifty, which I gave to my sister. I currently have an a6000, the FE 50mm, kit lens, 35mm, and the 55-210. I'm going go sell off the Canon gear before Christmas to upgrade to an a7ii, and hopefully get one or two primes as a gift to myself. My reason for switching is easy: I now have arthritis and I need a lighter set up. I purchased the a600 on a whim and fell in love. I've dragged my feet for almost a year in selling off my Canon gear, but I'm ready to, now. Haven't touched it since I bought the Sony.

I am still running both A and E/FE mount. There is definitely a time and place for all three of my bodies, but not a week goes by when I try to justify choosing between the two mounts.

The only reason I keep the A77ii around is for reach, usually when I need AF at sporting events. I can get the A77ii/200 2.8 combo into most any stadium because the combo meets the under 7" requirement, and they do measure. The 2x TC will be brought with me to the bowl game I go to in January, carried with me in my pocket. The reach and AF tracking I'll get from that combo will give me pro results without having to get a press pass for the game. I would probably pay good money and sell the A77ii/A-mount glass if Sony would come out with a 200 2.8 prime, but it is hard seeing them do that when they've yet to produce a prime over 90mm for the e-mount line.

Don't get me wrong, the A77ii is a good body and I'm grateful to have it but I narrowly prefer the IQ of the A6000 and greatly prefer its small size.

I love the IQ I get from the A7R, and the a6000 has been a very handy body, but I've highly considered selling all three bodies--as well as my beloved 55 1.8--for the new A99ii. It really looks like a powerhouse body, and it has all the features/IQ I could ever ask for. I've been using the RX100ii in places I'd normally use my a6000, mainly because it offers me maximum portability. It seems like this could be a great solution for me, and I'll definitely be paying attention to all the reviews that will come out over the next few days. I'm pretty sure I could get by with a 24/50-or 85-or-135/200/2xTC combo, although my RX100ii would become my full-time second-body.

One thing is for sure--it is a great time to be camera shopping with all the great bodies out there right now.