I wrote in a post that I got a Lensbaby lens. Many people use the Lensbaby to control blur in an image, making a wedge of sharp surrounded by unsharp…
You can also use a tilt lens, such as the Lensbaby, to keep an entire surface in focus.
This is much closer to how a monorail or field camera works, Notice how the blur runs off the sides rather than front to back…
This extra parameter makes things a bit more involved to shoot, but can lead to some interesting images…