Just finished using the SDX 900 with the canon primes on the opening of a series in Canada. The rental was reasonable and lookinmg at the stufff in post it looks great. It is better than using a HD zoom lens. The nice thing about the canon lens is they can mount on without the 50 adapter. We had to make a lot of lens changes for different looks fairly quickly so that made a big difference. I had a street lit up with balloons and T12's so we shot wide open as much as possible to get the most depth of field. I plan on using the package again as I was really happy. Only drawback was all my stuff was hand held so getting past the no grip arm took a couple of minutes to get comfortable with.
Chris