It also surprise me when I saw this shot, in the pass I mainly use it for
flowers and sometimes portrait, never notice about the chroma problem.
Similar problem also found on the Zuiko 180/2.8, although these two lenses
are not technically perfect but they are my favorite lenses, always give me
beautiful results. And yes, we usually see chroma on the edges of wide
angles but the highly corrected Zuikos 18/3.5 may be an exception. Besides
heavier light falloff it is very sharp edge to edge, it beat the Tamron 17
hands down in corner resolution.
C.H.Ling
----- Original Message -----
From: "Chuck Norcutt" <chucknorcutt@xxxxxxxxxxx>
> I find it very interesting that the chroma is in the center of the field
> on a short telephoto (and one of the best) when all we've ever been told
> to expect is that the chroma will be found on wide angles at the edge of
> the field.
>
> What do you think is going on here?
>
> Chuck Norcutt
>
> C.H.Ling wrote:
>
> > Bob, glad to hear you like them. I can't put the 24 shift on the 10D as
I
> > sold it last April to finance the 10D. Can't resist a US$1900 offer for
the
> > shift, it almost cover a 10D, vertical grip and a used 28-135 IS.
> >
> > Color fringing? do you mean on the 24 shift? I didn't see visible chroma
on
> > the 24 shift and I believe it will not found on the 10D. Same for the
18/3.5
> > but I do see some chroma on the 90/2, below is a shot at around F4 or
5.6
> > which shown quite a lots of chroma on the water reflections.
> >
> > http://www.accura.com.hk/CRW_4195.jpg (~1MB)
> >
> > Below is a shot from 18/3.5 at f5.6 1/30s, ISO400. It was not very sharp
but
> > can be used for checking the chroma (the strong spotlight areas).
> >
> > http://www.accura.com.hk/IMG_1277.jpg (~850K)
> >
> > C.H.Ling
>
>
>
> The olympus mailinglist olympus@xxxxxxxxxx
> To unsubscribe: mailto:olympus-request@xxxxxxxxxx?subject=unsubscribe
>
> To contact the list admins:
mailto:olympusadmins@xxxxxxxxxx?subject="Olympus List Problem"
The olympus mailinglist olympus@xxxxxxxxxx
To unsubscribe: mailto:olympus-request@xxxxxxxxxx?subject=unsubscribe
To contact the list admins: mailto:olympusadmins@xxxxxxxxxx?subject="Olympus
List Problem"
|
