Is it worth doing? TBH, I'm not bothered about video & have never used it on the 550d. I am perfectly happy with this camera & the quality of pics with the lenses I have (10-22, 24-105L, 70-200 f4L, 1.4X teleconverter, 50mm f1.4)
Am really after a dedicated "Camera". I mainly shoot transport & moving objects with Family thrown in as well 
Any advice would be appreciated.
Many thanks, Kevin



