The Lensbaby Burnside lens arrived yesterday. This morning it was low-tide, so I took the Burnside and the Velvet 56 to Little Corona del Mar (Newport Beach, CA), to one of my favorite low-tide places in Southern California.
I tested both lenses facing the same subject at all settings; with the burnside it meant using apertures F16 to F2.8, and with each aperture I used all 4 vignette settings. On the Velvet it was just the various apertures I tried.
My observations: my frame contained some cloudy skies, and with F16, F11, F8 and F5.6 the maximum vignette added too much darkness with the Burnside. I liked the maximum vignette with wider apertures, because what was darkened was also blurry (last two images).
F16
F11
F8
F5.6
F4
F2.8