Canon XLH1s vs. Canon 550D

Decided that in a few weeks time I am going to make a demonstration video comparing the differences / similarities of the Canon 550D SLR and the Canon XLH1s camcorder. I want to compare the DoF available with the same aperture on both. The Canon XLH1s, like many camcorders is around a x7 crop factor so I would have thought that with say an f1.8 aperture, the DoF is still going to be extremely deep. The plan is to film a tape measure from an angle so that the DoF can be measured and compared. The camcorder lens is a 5.5mm to 108mm "L" lens (equivalent to approx. 38mm to 778mm in 35mm format) and has a maximum f number of 1.6. Should be an interesting comparison.