Problem 600d raw video "zoom"

[alem]

Hello to all!
I'm here because I find it difficult to see well my video in raw format. If I look in my 600d or the amount in respect mac the picture is close to the time when I was recording .. it's as if he was active in the software zoom the image that makes me closer than I want.
Also I can only record in 640x360 format 10 mb / s. If I raise the resolution of the video is blocked before ... even if my card is 40 mb / s

If anyone can help me I'd be grateful!