Josilou wrote in post #17594690
I know this may seem trivial, but can you tell me how loud the sound of the 'click' is with the 6D? The noise my 350D makes can be so intrusive especially as I like to take quite a lot of photographs.
It is quieter then your Rebel.
I tend to disagree with the posters above on going with the 6D.
Please show me where or if i am wrong in my thoughts on the 6D.
With the wide variety of events that you use your camera for i think the camera falls short in anything but still or slow moving subjects.
The 6d is limited on AF points as well as all but the center AF point being a single assist focus point.
You can't choose group AF detection points, so you will have to be quick at changing AF points with a moving subject as with your current camera. (sports or wildlife)
You will have to ditch your current SD cards and go with CF cards. CF cards are better and faster, but are more expensive. Also keep in mind that the image file size of any newer camera will be noticeably larger, thus you will need more storage than you are currently used to using. But it is a one time investment.
The main reason to get the 6D is that you can use the ISO at a higher setting with a lot less noise especially in low light situations.
As far as black tie events and proms (low light). I don't know how the 6D does for low light focus. I assume that from Jonkline's remarks that it does well for focus in low light.
When i am shooting school dances (not the portrait session) i find the 7D and 70D lacking for how quickly they camera focuses in low light. I do get plenty of out of focus shots due to this. I shoot Canon, but this is where Nikon can do a better job at focusing in low light vs canon. The difference can be -5 stops for Nikon to -.5 stops for Canon (that is a 4.5 stop difference on certain cameras like the D7200). Nikon also has a focus assist beam for when you are not using a flash. It is only good for up to about 10' or 3 meters.
I find the ISO at 3200 to be acceptable on a Canon 70D or 7D mk2 in low light situations (for candids not portraiture). I don't find 3200 ISO acceptable on the Canon 60D nor the 7D. Anything newer than your current camera will be a nice upgrade in this respect.
I am saying that unless you need a full frame, or have grown to the point in your photography where you can handle it in all of your situations, i would go with the 7D mk2 if you can afford it, if you are looking for a nearly equal money saving alternative, i would go for the 70D. The main difference is the number of AF points, a couple FPS and storage media card.
Imho, you need to keep glass with a constant aperture. I assume that your EF 24-105 is an F/4? I usually come across two types of people with thoughts on what lenses to start out with. Some prefer mostly all primes. 24mm, 35mm, 85mm (primes being F/1.2 - F/1.8) and 70-200 F/2.8. The other people like the 24-70 F/2.8 and 70-200 F/2.8 with at least one prime of either 24mm or 35mm, or something along these lines. But the 70-200 F/2.8 seems to be the constant that everyone needs to get the reach and aperture needed for weddings, sports etc.
This is all my opinion I know some will disagree with me.