For budding moviemakers who want to shoot cinema-quality 1080p video, the Canon 5D Mark II digital SLR camera is a favorite. It's a lot less expensive (starting at around US$2,400 for the body alone) than a Red Epic-M (rock-bottom price of about $43,000). Now Robino Films is showing that the 1080p, 30-frame-per-second video capabilities of the iPhone 4S might be a new and really inexpensive low-end vi
