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Re: [OM] Bokeh 50mm

Subject: Re: [OM] Bokeh 50mm
From: "C.H.Ling" <chling@xxxxxxxxxxxxx>
Date: Tue, 13 May 2003 23:15:05 +0800
To me, a good bokeh must have soft and not so intense background. The Tokina
has so contrasty background, to me it is not a welcome character. The Tokina
was shot wide open, I assume it is F4 although the exposure shown its
aperture is slight smaller than F4 but the different should be less than 1/3
stop, I think this small different will not affect the out focus character.

C.H.Ling

----- Original Message -----
From: "Moose" <olymoose@xxxxxxxxxxxxx>

> Different strokes.......
>
> I find the 50/3.5 to have the worst bokeh of the lot, with the 35-70
> also on the lower rungs. Although I looked at several things, my real
> test is how uneasy it makes me. I would say the best for my eyes is the
> Tokina. However, that appears to be greater DOF, the background shapes
> seem to be simply less out of focus than the other lenses. As the only
> non Zuiko lens, maybe the marked apertures are slightly different? Or
> perhaps just a different design philosophy. Second for me is probably
> the 28-48 (sharpness superiority again?). The bokeh differences between
> the f1.8 and f1.4 standard lenses are so small I can't make a choice.
>
> As to the difference in background intensity betwen the 35-70/3.6 and
> the 28-48/4, it seems to my eyes to be that the details on the 35-70 are
> significantly more diffuse. So much so that their darker tones are
> spread out enough to significantly reduce contrast and thus the
> appearance of brightness in the overall background area. I wonder if an
> average densitometer reading of a large background area on each would
> show much, if any, overall difference in brightness. Look at the dark
> blue squares and the intervening white areas. The darks are not as dark
> nor the whites as white on the 35-70.
>
> Moose
>
> Lama-Jim L'Hommedieu wrote:
>
> >Comparing the 3.6 zoom and the 3.5 macro, I notice that lower contrast
makes an out of focus background (bokeh) less objectionable.
> >
> >The 3.6 probably "measures" as a better lens in res and contrast and it's
the one I'd prefer.  On the other hand,if one's criteria
> >of "quality" is whether the background is distracting, then the 3.5 macro
is "better".
> >
>


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