Monocle is a simple Windows Phone photography app that allows you to apply a handful of lens distortion effects to your photos. The app also has a small collection of basic editing tools, tonal effects and a vignette tool to further edit your photos with.
As far as Windows Phone photo editors are concerned, Monocle falls in with the more basic editing apps specializing in a particular effect. I'm not sure it could hold up as your main photo editor but Monocle might not be a bad supplemental editor for the lens effects it offers.
