If you are planning to carry something like a DSLR camera (1Kg +) you will need to use fairly large motors. We will soon have a bunch of new multicopter motors one of wich is designed for lifting heavy loads such as DSLR camera and uses a 15inch prop, you can see some more info in a recent post.
In general you want to be able to achieve hover at less than 70% throttle (the lower the better) so thats something to bear in mind when choosing your motors/props.
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MT2213 motors are great, as they are relatively cheap, but they are not the best if you want to carry heavy loads as they only produce about 860g thrust each and would not be recommended for a DSLR rig. You will need to use a 20A ESC with this motor.
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The 2217Q motors with 12x45 props and 4S battery will produce a maximum thrust of 1380g which is over 6Kg on a hexacopter, which is enough to carry a heavier camera. If you dont plan to use a camera there will be plenty of extra power to go fast, and also get some decent flight times, so that would be my recommendation for now. You will need to use a 30A ESC with this motor.
Hope that helps, and if you have any other questions please let me know!