On Tue, 17 Dec 2002 03:10:28 +0000, David Littlewood wrote:
>In article <3e03ed35.3026336@newsstand.cit.cornell.edu>, Neuman -
>Ruether writes
>>On Sat, 14 Dec 2002 18:09:44 GMT, jagdflyer@yahoo.com (Chris
>>B.) wrote:

>>>Can anyone direct me to a website where I can find expousure latitudes
>>>for most common slide and print films?
>>>
>>>If not, anyone know the latitude for Provia 100 and 400?
>>
>>There is no "latitude" with direct-positive media if your
>>standards are high - it is either correctly exposed, or
>>it is not. But, if you change the viewing conditions, or if
>>you move on to other media using the positives as source
>>material, it is possible to correct minor errors in
>>exposure...

>Well, mostly, but it does depend to some extent on the subject
>brightness range. With a low subject contrast (Say 5 stops as compared
>with a 7-stop film latitude) there will be a +/- 1 stop margin. With an
>8-stop subject brightness range (easy enough in bright light) you will
>lose either highlights or shadows even if you are spot on, though it
>rarely ruins a good picture.

This is true if you "move [images] on to other media using
the positives as source material" - but if you use the
positive images as the final product, even with a limited
tonal range, there is still no "latitude" - the correct
exposure will look right; the incorrect will not...