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Digital BW, The Print

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Re: [Digital BW] Re: You lost me... was: From the horses mouth.

2002-01-31 by Jerry Olson

Tom, bokeh is the way the out of focus part of an image is depicted. You
can have a really attractive out of focus area or a really ugly out of
focus area. Before I read about it as an article in a major pro
magazine, I had never heard of it. The illustrations that ran with the
article showed the difference, and if you appreciate the little things,
it was quite a revelation. Some 5 bladed lenses showed leaves that had
pentagon shaped highlights, and were really ugly. A lens that had good
bokeh showed the same image without those ugly reflections, as the lens
it was take with had a 9 blade, near circular arrangement of the lens
diaphragm. It was much nicer.

Jerry

tomoc wrote:
> 
> So what's the difference in Bokeh and "normal depth of field"
> characteristics? I thought all optics pretty much had the same depth
> of field range at the same f/ stop? There might by huge differences
> in resolution and contrast and flare and general sharpness, but isn't
> the depth of field a matter of physics that is constant???
> 
> Tom O'Connell
> 
> --- In DigitalBlackandWhiteThePrint@y..., Jerry Olson
> <jerryolson@r...> wrote:
> > I don't really consider bokeh in my photos. I don't think I've ever
> used
> > any of my lenses wide open, as I'm always looking for maximum
> sharpness
> > throughout the image.
> >
> 
> 
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