Very interesting Norma,
I´ll try with your solution. The bad point is
that huge 72mm filter, but if you say that works. Perfect!!!
Best regards,
Dave
Norma Foltz wrote:
>
> Dear David and fellow Zuiks --
>
> I think this is a case of Ultraviolet sensitivity of color film and
> I would guess that you did not use any type of UV absorbing filter
> over the Zuiko 180 mm lens.
> Ultraviolet can cause just the sort of effects that that you showed with
> those nice images of the brunette in the white top and khaki skirt.
> I don't think this is a case of chromatic abberation -- the focus of different
> wavelengths at different plane.
> Single coated lenses transmit more ultraviolet light than multicoated lenses.
> Most of the time ultraviolet does not cause a problem but on bright sunny days
> or other bright illumiation ultraviolet effects show up.
> If you can find a Wratten 1A or 2C filter gel and a holder for your lens
> then you'll have a good solution. Filter gels are thinner and optically
> better
> than glass filters, so you'll probably be happier with the results if you can
> find a suitable gel
> holder. I use both an old Kodak metal holder and a Cokin filter holder with
> a 3X3 gel holder on my 49 and 55 mm Zuikos but I don't know if this will work
> for the big 180mm -- what is the filter size ?
>
> For ultraviolet photography, of course gels won't work so I use a B&W glass
> filter containing Schott UG1 glass. http://flzhgn.home.mindspring.com/uv.htm
> When I want to remove all UV light I use a Wratten 12 yellow filter.
>
> Now I want to know more about the Vivitar 17mm lens because I just bought one
> !
> I am thinking of getting a UV0 glass filter for protecting the front element
> maybe I should
> consider a Wratten 2C or even a 2E !
>
> I think Kodak films are generally less sensitive to ultraviolet effects than
> Fuji films
> except for Kodak EIR and Fujichrome 64 T which are both wonderful for
> photographing
> true ultraviolet images.
>
> -- Hank Hogan <hogant@xxxxxxxxxxxxxx>
> http://flzhgn.home.mindspring.com/indexc.htm
>
> >
> > Date: Fri, 01 Sep 2000 17:31:58 +0200
> > From: David Irisarri Vila <valicors@xxxxxxxxxx>
> > Subject: [OM] Zuiko 180 TEST !!!
> >
> > Hi Zuikholics,
> >
> > I hope this little test, could help you to understand
> > that this lens has serious problems with chromatic
> > aberration. I have made this tiny web, as soon as I´ve
> > seen your message Richard. Hope this could help you to
> > see this aberration. Just click into my web page at the
> > end of this message.
> >
> > Best regards,
> >
> > Dave
> > - --
> > - ---------------------------------------------------------
> > Unofficial Olympus web page
> > http://victorian.fortunecity.com/byzantium/656/index.html
> > - ---------------------------------------------------------
> >
> > >
> > > *Under reasonable viewing conditions, no microscopes. I once had an
> > > 17mm Vivitar lens which produced such aberrations under certain
> > > conditions and I also had EOS zoom lens which showed absolutely
> > > horrible chromatic aberrations. In the case of the EOS lens it was
> > > definitely not caused by a damage because other samples of this lens
> > > had the same fault.
> > >
> > > < This message was delivered via the Olympus Mailing List >
> > > < For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
> > > < Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
> >
> > - --
> > - ---------------------------------------------------------
> > Unofficial Olympus web page
> > http://victorian.fortunecity.com/byzantium/656/index.html
> > - ---------------------------------------------------------
> >
> > ------------------------------
> >
> > ------------------------------
> >
> > Date: Fri, 1 Sep 2000 20:53:56 -0500
> > From: "Gary Edwards" <garyetx@xxxxxxxx>
> > Subject: Re: [OM] Zuiko 180 TEST !!!
> >
> > Dave, now you have me worried. I have to go out and test my beloved Zuiko
> > 180/2.8. Can you send your model over? Uh, not the guy in the black
> > t-shirt. . .
> >
> > Regards,
> > Gary Edwards
> >
> > - ----- Original Message -----
> > From: David Irisarri Vila <valicors@xxxxxxxxxx>
> > To: <olympus@xxxxxxxxxxxxxxx>
> > Sent: Friday, September 01, 2000 10:31 AM
> > Subject: [OM] Zuiko 180 TEST !!!
> >
> > > Hi Zuikholics,
> > >
> > > I hope this little test, could help you to understand
> > > that this lens has serious problems with chromatic
> > > aberration. I have made this tiny web, as soon as I´ve
> > > seen your message Richard. Hope this could help you to
> > > see this aberration. Just click into my web page at the
> > > end of this message.
> > >
> > > Best regards,
> > >
> > > Dave
> > > --
> > > ---------------------------------------------------------
> > > Unofficial Olympus web page
> > > http://victorian.fortunecity.com/byzantium/656/index.html
> > > ---------------------------------------------------------
> > >
> > >
> > > < This message was delivered via the Olympus Mailing List >
> > > < For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
> > > < Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
> > >
> >
> > ------------------------------
> >
> >
> > ------------------------------
> >
> > Date: Sat, 02 Sep 2000 12:15:08 +0900
> > From: "k.matsumoto" <GHA02260@xxxxxxxxxxx>
> > Subject: Re: [OM] RE: Fujichrome Films
> >
> > > Can someone explain the differences among these Fujichrome films?
> > > Is Proviajust the "pro" version of Sensia II? Whazzuuppp with
> > > Astia?
> > >
> > > Astia 100
> > > Provia 100F
> > > Sensia II 100
> > >
> > > Provia 400F
> > > Sensia II 400
> >
> > I thought the information found in the Japanese site of Fuji film is
> > written in friendly words, compared to English sites. Maybe this
> > will help you to understand Fuji's intentions.
> >
> > ======
> >
> > Velvia, Provia, Astia are professional-use films with colored film
> > bases intended for publishing purposes. Trebi and Sensia use clear
> > bases good for slide projection or looking through a lupe etc, also
> > good for beginners.
> >
> > Color reappearance:
> > Trebi True color
> > Sensia Settled kind
> > Velvia Higher saturation than actual color
> > Provia True color
> > Astia True color, beautiful human skin
> >
> > Gradation:
> > Trebi Standard
> > Sensia Soft
> > Velvia Vivid
> > Provia Standard
> > Astia Soft
> >
> > Recommended for:
> > Trebi All purposes, good for beginners and those not used to
> > reversal films.
> > Sensia All purposes incl. medical and scientific usages.
> > Velvia Those who want sharp and powerful details, brilliant colors,
> > excellent quality or high resolution.
> > Provia All purposes. Select this if you are wavering in choice.
> > Most commonly used.
> > Astia Especially good for female and baby shots. Select this when
> > you like to soften too high-contrasted objects, too.
> >
> > ===
> >
> > Film shop clerks sometimes seem to be busy explaining these to their
> > customers. I wish such information is indicated on the package so I
> > can understand the difference instantly!
> >
> > kazuya matsumoto
> >
> > ------------------------------
>
> < This message was delivered via the Olympus Mailing List >
> < For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
> < Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
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