Canon today introduced a new high end consumer camcorder line that features 1/3 sq in CMOS sensors – but having only 1920×1080 resolution. Rather than the typical gigapixel sensors being put into many consumer camcorders or still cameras, they have opted to go with a larger sensor having fewer pixels. This means each pixel’s surface area is larger and can capture more light. That in turn means the new cameras will work much better in low light and have greater dynamic range.
Looks like the new cameras also shoot 24p, in addition to 30p (wrapped inside a 60i stream) and 60i.
More information here – watch the Canon video explanation.