Leon Altoff wrote: >Hi all, > >I'd like to try and find some information on the bokeh of lenses before >I go out and buy one.
Mike Johnston wrote a good article on lens contrast that explains bokeh a bit. He says that "The relative superimposition of the sagittal and tangential lines of an MTF chart are one predictor of 'good' or smooth bokeh." (If you read the rest of the article that'll make a bit more sense!) http://luminous-landscape.com/tutorials/understanding-series/lens-contrast.shtml Some lens manufacturers have tried to pass off the notion that more closely circular aperture diaphragms with more blades and/or curved blades are they key to good bokeh. That's marketing BS: Aperture shape can affect specular highlights, but doesn't do much for bokeh.
