Pentax HD DA 20-40mm f2.8-4 ED Limited DC WR Category_Hardshell Watertight Cases Liao’s approach to picture making

Liao’s approach to picture making changed as he experimented with new strategies and techniques

there will be an increase in contrast and graininess with additional loss of shadow detail

monkeys to human embryos

4 maximum aperture produces outstanding evenly lit images with edge-to-edge sharpness—virtually no sagittal coma or light falloff

Dimensions: 46x185mm

Pentax HD DA 20-40mm f2.8-4 ED Limited DC WR Category_Hardshell Watertight Cases Liao’s approach to picture makingAs the first zoom lens in the acclaimed Limited Lens series, this lens features a versatile focal length of from 30. 5mm to 61. 5mm (in the 35mm format), ideal for a variety of subjects, settings and creative perspectives, all housed in a durable weather sealed body with state of the art High Definition (HD) coating. With its large F2. 8 maximum aperture and rounded diaphragm blades, this lens produces stunning bokeh for exceptional visual expression.