Using vignette to 'stretch' DR

[Bamboopictures]

The new Lensbaby Burnside 35 has an interesting lever that lets you adjust the amount of vignetting in your video. This has the effect or darkening the background and could be useful for squeezing out some details in an otherwise blown out backlit situation.
[video=youtube;SLUpNW_Lxfg]https://www.youtube.com/watch?v=SLUpNW_Lxfg[/video]