Hello first off i apologized if this is the wrong forum to ask. I am currently using a 70d for 2 years now and i feel i am ready to go full frame now although i am not a pro and not even near to it still a hobbyist but anyway my main shoots are just everyday life , street photography, travel , portraiture of family's and friends but most of all every time i have the chance i love shooting landscape but that's only on travels and holidays ( day-off and weekend ), but on occasions sometimes i am ask to shoots birthdays and christening ( paid of course but you know just a little ) and i I've done a couple of studio set up but i have a semi pro with me when i did the shoot, i do shoot low light sometimes or more often than that when the situations calls for it , and lastly i dont shoot video. Now lately as i am gradually understand this art of photography ( or simply saying that now i am getting a little better that i am noticing how bad i am ) i noticed that some of my photos are not entirely tact sharp i know its me and not the camera. i shoot raw and on manual mode even when i first bought my 70d and it didnt take long for me to understand the proper exposure but like i said some of my photos are not exactly tact sharp particularly when shooting portrait and its making me very uncomfortable and sometimes making me loose confidence on myself knowing it may have been me and not the camera but as im doing my research i couldn't help but notice the issue on the 70d particularly the center focus, that is when it came to me that maybe it wasn't just me. So now im thinking to go full frame and the closest that i could afford right now is the 6d and for me to even get it is to sell my 70d and some of my lens w/c is the 18-135 stm , 10-22, 50mm 1.4 and another kit lens from my previous 1100d. I would still have my tamron 24-70 f2.8 vc and tamron 70-200 f2.8 vc for me to use if i would get the 6d Now the only thing that is stopping me to go to 6d and this is the advised that i am seeking is that, is all that consideration enough to merit to get the 6d ? and im also extremely concern about the 1/4000 shutter speed of the 6d knowing that i have 2 lenses which can go at f2.8, if i ever used it on broad daylight on f2.8 im thinking that 1/4000 may not be enough to cut it. The 11 AF points and only one being crossed type i think i could lived with having read some reviews that it is a very good center focus unless someone here says otherwise. I wont even bothered by the 1/180 sync speed as i know nothing about it although i did mention that i've done a studio type set up with 2 strobes lighting but like i said i have a semi pro at that time and he did all the set up all i did is shoot. But i would appreciate even more if someone here would explain it to me what the 1/180 sync speed is of the 6d and will it be a problem if i ever do a studio type shoot again. I know that the 6d mkII is due some time next year or atleast that is what the rumor is saying but today and next year is still a lot of time and every time i shoot portraiture and sees a couple of blurry ones, it just kills me. Thank you very much and sorry if took so many words to explain my situation and i really hoped someone here would help me. Cheers.