I haven't found an answer to this with a cursory review of available products, but was wondering if Canon really is the only still camera manufacturer that makes a full-frame camera that also shoots video?

Is that the case? None of the other big brands have joined the fray?

Thanks for correcting this misconception if that's the case.

Vikram.

Nikon D3s.
Steve

Making full frame sensors for DSLRs is not only an expensive process researching, but also for production. At the moment, only the big boys can do it. From the Canon white paper on FF sensors:

"Production costs for a full-frame sensor can exceed twenty times the costs for an APS-C sensor. Only 20 full-frame sensors will fit on an 8-inch (200 mm) silicon wafer, and yield is comparatively low because the sensor's large area makes it very vulnerable to contaminants—20 evenly distributed defects could theoretically ruin an entire wafer. Additionally, the full-frame sensor requires three separate exposures during the photolithography stage, tripling the number of masks and exposure processes"

Given time, we will gradually see other manufacturers offer this functionality, but not at the moment.

The Nikon D3s only does 720p video, I think.