[LargeFormat] Plus-X

tripspud largeformat@f32.net
Tue Dec 10 08:36:23 2002


Hi Richard!

     How does the characteristic curve's toe of Ilford's HP5 Plus
compare
with Tri-X,  both sheetfilm?  Does HP5 Plus have a similar long toe?

     I've never use Tri-X sheet film, I notice it's rated at 320.  Maybe
I'll
try some.

Cheers,

Rich Lahrson
Berkeley, California
tripspud@transbay.net

Richard Knoppow wrote:

> ----- Original Message -----
> From: "Skip Roessel" <skiproessel@mindspring.com>
> To: <largeformat@f32.net>
> Sent: Sunday, December 08, 2002 9:27 PM
> Subject: Re: [LargeFormat] Plus-X
>
> > I'm a big fan of Plus-X and was disappointed to hear it's
> being
> > discontinued.  Went down to B&H Photo (in NYC) today to
> stock up and for
> > the time being they still have some inventory, so I bought
> 3 boxes for
> > my freezer ($138 a box of 100 in 5x7).  It's dated 2/04,
> so anyone that
> > likes this film might want to act sooner rather than
> later.
> >
> > I've used this film two years out of date in RolloPyro at
> EI 80 with no
> > fog problem, and has moisture-proof packaging in the box,
> 4 packets of
> > 25, so I can shoot it for a while. I might grab some
> Ektapan while the
> > getting is good, if I have any money left by the end of
> the year.
> >
> > The Elke 100 looks similar but I suspect the Plux-X is
> sharper, although
> > I've not done a scientific test shooting the same
> material.  4x5
> > shooters in particular might want to lay in a supply.
> >
> > Skip Roessel
> > skiproessel@mindspring.com
> >
> > Richard Knoppow wrote:
> >
>     snipping...
>   Tri-X sheet film has a similar tonal curve to Plus-X
> although not quite as extreme. There is really no way of
> duplicating the effect of the film curve by choice of
> developers although they may have some effect.
>   Look at the published curves for Tri-X (or Plus-X is the
> old data sheets are still on the Kodak web site) and compare
> them to T-Max 100 or 400, which have relativelly short toes
> and long straight line sections. If you plot where the
> different gray tones (or Zone system zones) fall you will
> see why they look different.
>   AFAIK, Tri-X sheet film will continue in production.
>   The roll film and 35mm versions of both Tri-X and Plus-X
> have medium toe characteristics, quite different from the
> sheet film versions.
>
> ---
> Richard Knoppow
> Los Angeles, CA, USA
> dickburk@ix.netcom.com
>
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