BigBadWolfie wrote in post #15336914
Kenji. Go and buy something already so I can learn from your success and mistakes.

I'm sitting here with my 60D, crop lenses, and thinking of buying a new lens and wait for Canon FF or go over to the dark side. Sound familiar?
Lol, As i said, Waiting on the 28mm f/1.8 to sell! I might end up keeping it for now...
Anyways, since the original post I HAVE determined a few things:
1. The D600 and the 6D are not the cameras for me, they look cool on the surface but overall I'm giving up a lot for just Full Frame, Same with a 5DII
1a. On the D600, I'm going through the hassle of switching systems and what do I realistically gain? Full Frame, thats about it, Theres no lenses that Nikon has that I dont already have or cant get for Canon right now, And my 100mm f/2.8L IS I feel is a superior lens to the 105 VR Micro-Nikkor in terms of usability (The Hybrid IS works at macro distances, the VR on the Nikkor does -not-) While Nikon has an IQ advantage, I am uncertain its beneficial in my particular shooting situations, I have to look at the complete picture..and while there are many awesome Nikon lenses out there, I do have a soft spot for a couple of my L lenses, especially my 100L
1b. On the 6D I give up the ergonomics which I love on my 7D for the 60D ergonomics which are actually -painful- for me to use
1c. On any of the above cameras I give up speed (I dont always need 8fps, But boy I've been happy to have it more than a few times) I give up the AF system (The D600 is better in some situations, but overall I feel my 7D can outfocus it, But regardless, all the above cameras have lousy frame coverage compared to the 7D which is more what I care about) I give up compatibility with CF cards (Not a huge deal, except i have CF cards and no SD cards..I can fix that for not a lot of money but it is a minor thing to keep in mind for me) And I''m unsure I wont be unhappy with the lower pixel density at times, I'm not a 2 camera person either
1d. Going full frame realistically means lens changeups, Even staying with Canon
1e. My gut says a 5D Mark III fits me best and gets me an actual upgrade in just about every area, Just because i CAN have a D600 or 6D now doesnt mean its the right choice and I feel in 6 months I'd likely be sitting here regretting I spent the money instead of waiting a while and getting the 5DIII instead
2. The thing I really want right now is my Sigmalux with a wider field of view, And now with the Sigma 35mm f/1.4 A I can get that easily, The other thing I wanted was the unique perspective of a fast ultrawide/wide lens, but given my realistic budget right now, even if i buy a FF camera, I am unlikely to be able to get one PLUS say, a 16-35 f/2.8L II... Also if i went full frame the Sigma 35 f/1.4 would still be an awesome lens I suspect, as I know from experience the subjects I want to use it on I like the perspective of 24-35mm, So yeah, Not a bad investment
3. With the way the used market is right now, I doubt my 7D will move fast or for a good price, it IS 3 years old and it DOES have somewhere in the neighborhood of 70k actuations on it, its a lot less attractive than the ones im seeing with less than 10k actuations that were bought a couple months ago, Since I'd really want to get the money from my 7D to pay back a bit of my new camera (or fund a lens) this is kinda a big deal, I'm not looking at much for my 7D most likely, if it sells at all