apersson850 wrote in post #16109981
I don't get this center point only thing. I want the freedom of having at least some artistic opinion about the images I shoot, so I don't want to have the main subject in the center all the time.
Yes, you can crop, but then you throw away a good deal of that resolution you paid for.
Guess I'm spoiled (or is it blessed?) with so many years of color slide shooting. Get it right out of the camera, or you blew it, sort of.
The idea is that you focus and then recompose. If it causes metering issues then you can focus, recompose, meter.
You do have to be careful if you are quite close to the subject though as recomposing from center point can throw the focus off slightly. Camera lenses focus on a flat plane so when you recompose and thereby change the the angle of that plane, the focus can slip forward or backward by a very small amount. But it's rarely enough to matter unless you're quite close with a wide lens.
Personally I use orientation memory focus point selection, usually set at around eye level if I'm shooting people. That way when I recompose, I'm not usually doing so by much and I still rarely have to move the focus point around. Also on the 6D there is a custom function which enables you to use the directional pad to quickly select focus points without having to press the focus select button first. So yeah, you can deviate from centre point focus somewhat and get very good results. I see this is a half way house technique which is certainly far more effective than centre only. Unless the light is bad and you need the extra stops of allowance from the very precise and sensitive centre point on the 6D.
As for downgrading... For what you do you will not be disappointed. The 6D's sensor is actually cleaner at high iso than the 5D iii. It seems that the extra couple of mp on the 5Diii perhaps would explain why this is. 20mp is more than enough for what you or 99% of us the rest of us will be doing. You will be staggered by the quality of images that this camera produces, especially considering that it's not far short of half the price of the 5D iii.
Camera bodies depreciate much faster than lenses so if you don't need the 5D iii, trade up while it's still worth a good chunk of dough and don't look back unless you ever need the much more advanced focussing system that the 5Diii has in the future
The wifi functionality is fantastic btw. I sometimes use it to quickly bump photos over to clients on the fly during an event so that they can tweet them which has gained me some serious browny points with them. Granted it's a bit of a techno novelty - but it's one that impresses people!