Sorry, I didn't post naught but the pictures. The "bokeh" picture is a bare 60 watt light bulb from about 15 feet, wit the lens focused to about 3 feet. It is far from a point source.
William Robb ----- Original Message ----- From: "Bob Blakely" Subject: Re: Bellows 100mm Weird Bokeh > William! > > As you know, All out of focus shapes are the shape of the aperture as traced > by the light source(s) - always. If the light source had been a point > source, then the edges of the aperture blades would have been reproduced > exactly - save for some minor diffraction. > > You've not told us what this is a photo of. It appears to be an overexposed > photo of an out of focus, non point, possibly near round light source. If > the light source was (essentially) round, then you have 8 blades in your > aperture on that screw mount lens. I have the K-mount version which has 6 > blades. > > I'm not sure this would actually be called bokeh. It's more a fuzzy picture > of the "bokeh" generator. It would be nice if the "star" was exposed as > "gray". That way we could view the light distribution across the aperture. > I've noticed that this has more of an effect on the bokeh of many photos > than the shape of the aperture. > > Bokeh (bad, good, neutral, disturbing) is a matter of taste. > > Regards, - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
