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Re: [OM] Bokeh question

Subject: Re: [OM] Bokeh question
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Mon, 17 Jan 2011 19:04:18 -0500
A pin hole has mucho bokeh because the diffraction is horrible.  Yes, 
diffraction, and thus resolution, is frequency dependent and I'm sure a 
pin hole is not chromatically corrected.  Chromatic bokeh?  An 
interesting notion.

Chuck Norcutt


On 1/17/2011 5:13 PM, WayneS wrote:
> Alright!, another Bokeh discussions - and why I just love this list.
> Keep the waxing philosophical coming, oats, nits, and all.
>
> And my take, a pinhole has bokeh due to diffraction, and the fact the
> pin hole affects the resolution. So, even stopped down, a lens has
> 'micro-bokeh'. ... and doesn't diffraction depend on color, so a
> pinhole is not chromatically corrected.
>
> So is there chromatic bokeh?
>
> Wayne
>
>
> At 1/17/2011 04:07 PM, Andrew Fildes wrote:
>> Except that everything is not in focus - just apparently so. Which
>> means that the areas just off focus will be rendered in a
>> particular way which may be what gives a particular lens its
>> character - so how about we invent the term 'micro-bokeh' and start
>> a whole new area of lensgeek discourse? :-)
>>
>>
>>
>> On 17/01/2011, at 11:34 PM, Chuck Norcutt wrote:
>>
>>> Agreed.  The definition of bokeh relates to the appearance of
>>> out-of-focus parts of the image.  If everything is in focus there
>>> is no bokeh.
>
-- 
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