Lensbaby has announced the Burnside 35, which it calls an adaptation of the Petzval lens design with the added benefit of an effect slider to adjust the strength of vignetting and bokeh. The gold-anodized slider is located on the side of the lens barrel and operates a second iris, adding more or less vignette effect and adjusting the appearance of bokeh.
The manual focus lens is designed for full-frame and crop-sensor cameras and will be offered in Canon EF, Nikon F, Sony A, Pentax K... more