Excerpt: Paving the path for a technique known as “selective focus”, Lensbaby has been cranking out optic after optic focused — defocused might be a better way to describe it — on offering photographers a lens-based solution for creating dramatic photos. Niche? Maybe, but not the Lensbaby Edge 80 ($300) .
Excerpt: The Lensbaby Edge 80 Optic fits inside the Lensbaby Composer and should therefore be seen as an optional lens for the lensbaby system - which now consists of a number of lens / optical units called the "Optic Swap System" - the original being the double glass optic that comes with the lensbaby composer. There are a number of other Optics available from the Sweet 35, Double Glass, Single Glass, Plastic, Fisheye, Soft Focus and Pinhole / Zone plate.
Pros: Quick aperture control, Good bokeh / background blur, Easy close-up mode, Quick and easy creative effects
Cons: Getting the Edge 80 out of the Composer can be fiddly, Quite high price if you don't already have a Composer