Digital BW, The Print

On 05/09/2012 David Kachel wrote:
> I must admit you've got me on that one. What is a "highly compressed 
> density
> curve"?

I think "WS" means that it's very non-linear - most of the response of the 
chromogenics is a short toe followed by one long shoulder. There isn't a 
straight bit anywhere. At least with XP1/2, TCN seemed to be flatter 
through the midtones.

He's also right that the shadows could get gruesome if underexposed. I'd 
forgotten that. Despite Ilford's claims of broad exposure latitude it was 
actually _really_ fussy about exposure if you wanted quality results. If 
you weren't, you'd still get a picture but underexposure gave great ugly 
splodges in the dark tones, and over exposure made the whole upper half of 
the tonal range flat and muddy. Push/pull C41 is for masochists and always 
made things worse IME, so I can't imagine a less useful film for ZS 
enthusiasts.
-- 
Regards

Tony Sleep
http://tonysleep.co.uk