I'm a videographer looking to add a couple new cameras to my arsenal and am wondering how the t2i, t3i, 60d, etc compare image-wise to the 7d. If I shot the same subject with the same model lens using the 7D paired one of the less expensive models, should I expect any difference in image quality between the two? I don't really know a lot about the guts of these cameras and if they use different image sensors or other elements that would affect video quality, color, sharpness, etc. Any advice is appreciated!
I believe the 7D and the 60D are almost the exact same when it comes to video capabilities so you shouldn't have any issues there. The T2i and T3i do not have intermediate ISOs. So if you set your 7D to ISO 320, the closest the T2i could get would be 300, so those shots would look different.