I find that it's rarely necessary to do any kind of careful selection
when sharpening foreground (people mostly) vs background. In PhotoShop,
first create a new layer and sharpen for the eyes and other facial
features on that layer. Pay no attention to the effect elsewhere. Then
add a mask, select black paint and use the paint bucket to pour black
paint all over the mask. That will undo the sharpened layer and show
the unsharpened layer beneath. Then select white paint and a paint
brush and paint over the hair, eyes, eyebrows, nostrils, lips, jewelry
and anything else that might look better if it was sharper. There
really is no need to carefully paint within the lines even though your
mother told you to. As long as you're not as careless as a typical 2
year old it will look just fine even at moderately large print sizes.
Chuck Norcutt
usher99@xxxxxxx wrote:
> Couple of interesting points. The converse of AG's situation also
> appears to be true. The Z. 200/4 seems to have very nice bokeh on the
> E-1 but so-so on film. I remember iwert's wonderful portrait and am
> glad he provided the link again. I suspect the 100/2 has nice bokeh on
> film
> FF. Why use USM on the background which can only harshen the bokeh,
> unless time limits selecting out the subject?
>
> Mike
>
> The bokeh issue is part optics, part film. I have noticed that
> high-speed
> films--even Delta 400 pushed two stops, don't react the same to bokeh as
> lower-speed films. You will see this with digital too. A lens which
> works
> great on film isn't necessarily so great on digital. My 100/2.8 is
> awesome
> on film, hohum on the E-1. I suspect that it has to do with USM. What
> does
> USM have to do with film? During the development process, some
> film-developer combinations allow substantial grain migration which
> forms
> the same type of edge brightness artifacts as USM. (halos and such).
> AG
>
>
>
>
>
>
>
>> . I wonder what
>> aperture was used by Chris. Perhaps the 100 F2 is the bokeh king for
>> portraits?
>> Mike
>
>
> it certainly ain't bad:
>
> http://www.myfourthirds.com/document.php?id=24990
>
> I can say the 100/2 is my favourite OM lens.
>
>
>
>
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