[LargeFormat] Plus-X

[Richard Knoppow]

----- Original Message -----
From: "tripspud" <tripspud@transbay.net>
To: <largeformat@f32.net>
Sent: Tuesday, December 10, 2002 5:35 AM
Subject: Re: [LargeFormat] Plus-X


> 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
>
  Tri-X and Plus-X sheet film are unique in modern films in
having an upswept characteristic. Kodak says this is to give
brilliant highlights when used in studio lighting conditions
where flare can be controlled. The long toe in some respects
duplicates the effect of flare in lowering shadow contrast.
  HP-5 is a medium toe film, probably somewhat more toe than
T-Max 400, but not like Tri-X.
  I think the very long toe characteristic is useful for
some types of scenes but, in general, I prefer the tonal
rendition of more conventional film.
  Note that Tri-X roll film (ISO-400) is a completely
different emulsion with a medium toe. The same for the roll
and 35mm versions of Plus-X. The current Plus-X is the
medium toe type.
  About all I can suggest for any film is to try it to see
if you like the tone rendition. The "look" of pictures is so
personal that its hard to recommend anything.


---
Richard Knoppow
Los Angeles, CA, USA
dickburk@ix.netcom.com