Re: [Leica] BOKEH of 35mm lenses (prev.Reply to visitors ofmywebsite / Leica M comments)

["Dan Post" <dwpost@email.msn.com>]

Mikirosan-
Interesting post, that. I was wondering- and this goes back to my days when
I studied the psychology of perception, that those lenses that have the same
type of abberations as might be found in the human eye, might have the best
'perceived' bokeh?
Do we have any optometrist out there that have studied the human eye lens as
an image forming system? Does the brain 'correct' certain abberations, and
lenes that render images similar to those 'corrected' by the occipital lobe
appear more natural and pleasing? There might be a thesis in this!
We use biology to design ergonomic machines all the time, and I was
wondering if anyone has thought about designing a lenses that 'sees' similar
to the way we 'see'- not just with the eyes, but with the brain's input as
well.
In a way, Fuji has done that with their Reala film- it does a good job of
'seeing' color the way the eye does. I was really surprised to find how well
it 'adjusted' for flourescent light, just as your brain does, by 'filtering'
out the green, and adding magenta so it looks natural.
I wonder. Would a lens that mimics the way we 'see', with both the eye and
the brain, be considered superior, even if the resolution or sharpness were
not optimal?
Points to ponder....
Dan
- ----- Original Message -----
From: Mikiro <arbos@silva.net>
To: <leica-users@mejac.palo-alto.ca.us>
Sent: Friday, August 27, 1999 6:39 AM
Subject: Re: [Leica] BOKEH of 35mm lenses (prev.Reply to visitors
ofmywebsite / Leica M comments)


> Hi, There was a technical report on the relationship between quality of
> bokeh and use of aspherical lenses in Asahi Camera (a Japanese photo
> journal).  According to the article, aspherical lenses themselves should
not
> be accused for harsh bokeh.  On the contrary, less abberations with
> aspherical lenses can THEORETICALLY give better bokeh.  The report
concluded
> that the aquality of bokeh depends on the overall lens design and
> construction and not simply on whether or not aspherical elements are
used.
> In this article bokehs of 35/2asph and 35/1.4asph were compared.  The
> former had more comfortable bokeh to the reporter's eyes (and also to my
> eyes).
>
> Mikiro
>
>
>
> At 7:58 pm +0200 27/8/99, D Khong wrote:
> >Milos Kocman wrote:
> >>Anyone else been comparing bokeh of Leica 35mm lenses?
> >
> >I have only used 4.  Here are my views:
> >
> >Best Bokeh - 35 Summilux (non-ASPH)
> >2nd best - 35 Summaron f3.5 in screwmount
> >3rd best - 35 Summicron
> >4th best - 35 summicron asph
> >
> >I have never used the 35 summilux asph so no comments.  I am of the
> >impression that the quality of bokeh is closely linked to the degree of
> >spherical aberration, coma, etc.  The ASPH is the purists' dream but
might
> >well be an artist's heartache.
> >
> >I am basically an artist at heart.
> >
> >Dan K.
> >
> >
> >
>
>---------------------------------------------------------------------------
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> >       Money is like fertilizer.  It is useless until it leaves your
hand.
>
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> >
>
>
>