I bought the Lensbaby Edge 80 Optic to use as a tilt shift lens for my Nikon D800. The Edge 80 optic can be mounted on any Lensbaby body. I have used it on a Lensbaby Composer Pro body and the Lensbaby Spark body. The Composer Pro is a better construction and easier to use but the Spark provides a very economical and light alternative.
Here are a few more manufacturer details:
“The Edge 80 Optic is a 80mm, flat field of focus optic with a 12-blade adjustable aperture and is compatible with all Lensbaby lens bodies*. When tilted, the Edge 80 delivers a slice of tack sharp focus through the image, bordered by soft blur. When pointed straight ahead, the Edge 80 can be used just like a high-quality straight lens. When tilted, the size of that slice of focus depends upon the aperture used, and the placement of the slice of focus depends upon the degree and direction of tilt. Rotating the aperture dial on the front of the optic changes between apertures from f/2.8 through f/22”
Full spec can be found here: http://store.lensbaby.com/products/edge-80-optic.html
Unlike many people who buy tilt shift lenses, I didn’t buy it for miniaturised cityscapes. I bought it to use as a model photographer and wedding photographer. It allows me change the plane of focus to create unique straight from the camera photoshop’d look images that my clients love and I appreciate as I like to be different.
Here are some samples of the Lensbaby Edge 80 in action:
The Lensbaby Edge 80 is compact and lightweight so rarely leaves my camera bag. I like it! 🙂