Definition of bokeh, simply gibberish?

Started 8 months ago | Discussions thread
jtra
Contributing MemberPosts: 650
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Re: Uh, simple
In reply to woffles, 8 months ago

woffles wrote:

Good quality bokeh is simply a reflection of good quality aperture blades and well designed glass. Poorly finished aperture blades will give poor bokeh. The out of focus areas you see in a photograph are are actually representations of the aperture since a lens can only focus on a single plane in space. Focus of anything in front or behind this plane is controlled by the aperture blades. Hence, good quality blades = good bokeh, bad quality blades = bad bokeh. It's not subjective, it's simple physics. There's no opinions or arguments, only facts, bokeh is a physical thing. You are actually seeing the "quality" of the aperture of the lens in the out of focus areas.

That can be disproved quickly. Consider that lenses of same aperture and fl have different bokeh wide open where no aperture blades are involved.
Go here: http://jtra.cz/stuff/essays/bokeh/index.html

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