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Portra 100T - contast ?

 
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antispam2

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Since: Oct 19, 2003
Posts: 33



(Msg. 1) Posted: Thu Oct 23, 2003 1:48 am
Post subject: Portra 100T - contast ?
Archived from groups: rec>photo>film+labs (more info?)

I have searched the web and come up with all kinds of data/specs on the
product but no info specificically on whether 100T is a LOW contrast film
or not ? Or perhaps what it is most comparable or similar to. Is it for
example similar to Portra 160NC ?

thanks
frank

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jjphoto

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Since: Aug 16, 2003
Posts: 61



(Msg. 2) Posted: Sat Oct 25, 2003 12:50 am
Post subject: Re: Portra 100T - contast ? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

sometimes you just have to shoot a roll of each and make your own judgement.
I think this is one of those times.
JJ
"fgphotog" <antispam.TakeThisOut@aol.com> wrote in message
news:QiHlb.6225$7t3.252308@news20.bellglobal.com...
 > I have searched the web and come up with all kinds of data/specs on the
 > product but no info specificically on whether 100T is a LOW contrast film
 > or not ? Or perhaps what it is most comparable or similar to. Is it for
 > example similar to Portra 160NC ?
 >
 > thanks
 > frank
 >
 >
 >
 >
 >
 ><!-- ~MESSAGE_AFTER~ -->

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antispam2

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Since: Oct 19, 2003
Posts: 33



(Msg. 3) Posted: Sat Oct 25, 2003 12:50 am
Post subject: Re: Portra 100T - contast ? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

i think you're right. thanks for replying to the post anyway
Frank

/



"John" <jjphoto.DeleteThis@pobox.com> wrote in message
news:bnb3ol$2r6a$1@arachne.labyrinth.net.au...
 > sometimes you just have to shoot a roll of each and make your own
judgement.
 > I think this is one of those times.
 > JJ
 > "fgphotog" <antispam.DeleteThis@aol.com> wrote in message
 > news:QiHlb.6225$7t3.252308@news20.bellglobal.com...
  > > I have searched the web and come up with all kinds of data/specs on the
  > > product but no info specificically on whether 100T is a LOW contrast
film
  > > or not ? Or perhaps what it is most comparable or similar to. Is it for
  > > example similar to Portra 160NC ?
  > >
  > > thanks
  > > frank
  > >
  > >
  > >
  > >
  > >
  > >
 >
 ><!-- ~MESSAGE_AFTER~ -->
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look

External


Since: Jun 22, 2004
Posts: 453



(Msg. 4) Posted: Sat Oct 25, 2003 12:50 am
Post subject: Re: Portra 100T - contast ? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

Look at the slope of the characteristic curve. Steeper slope = higher
contrast.
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antispam2

External


Since: Oct 19, 2003
Posts: 33



(Msg. 5) Posted: Sat Oct 25, 2003 12:50 am
Post subject: Re: Portra 100T - contast ? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

Thanks, but that only makes sense if you are 1/2 way familiar with film
curves. Or have a curve to compare it to perhaps - here's the link to it's
curve - what do you think it "means"
<a style='text-decoration: underline;' href="http://www.kodak.com/global/en/professional/support/techPubs/e2468/f009_0154" target="_blank">http://www.kodak.com/global/en/professional/support/techPubs/e2468/f009_0154</a>
ac.gif





"Michael A. Covington" <look RemoveThis @www.covingtoninnovations.com.for.address> wrote
in message news:Xv2dnZSY_ur9UASiU-KYvg@speedfactory.net...
 > Look at the slope of the characteristic curve. Steeper slope = higher
 > contrast.
 >
 ><!-- ~MESSAGE_AFTER~ -->
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look

External


Since: Jun 22, 2004
Posts: 453



(Msg. 6) Posted: Sat Oct 25, 2003 2:30 am
Post subject: Re: Portra 100T - contast ? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

That's exactly the idea -- compare the curves of two films. The one that
slopes more steeply has higher contrast.

How to read these curves is no mystery. Kodak has a number of data books
that tell you. They mainly explain black-and-white film curves; from there
it's pretty obvious how color film curves work.
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