Remember that 8-inch, super-high-res tablet Dell showed off back in September? You know, the one with the depth-sensing camera? It's OK if you don't, but really, you should give this a second look -- yes, even if you have tablet fatigue. Dell's Venue 8 7000 series goes on sale today, with a starting price of $400, and it's notable for not one, but several reasons. For starters, it's the first with Intel's RealSense camera setup, which in this case includes an 8-megapixel rear camera paired with two 720p ancillary ones. The three sensors work together to shoot different variations of a shot, each with a different area of focus. Basically, then, you can go in after the fact and either sharpen or soften the focus on any part of the photo -- yep, just like on a Lytro camera. Also, because these photographs are actually a composite of three different shots, you can easily apply effects to select parts of the picture. Think: sepia for just the bride and groom, with bright colors in the background. (Don't judge me for my tacky taste, OK?) Lastly, an over-the-air update in the coming months will allow you to actually measure items in the photo with an on-screen ruler.