Stereo Trick: Generations

[P3D John W Roberts <roberts@xxxxxxxxxxxxxxxxx>]

>Date: Tue, 22 Apr 1997 11:59:43 -0500
>From: P3D Grant Campos  <gc6094@xxxxxxxxxxxxxxxxxx>
>Subject: Re: slide vs neg & Loreo vs. Realist

>> I don't know what you mean by "accurate," but color negative film can
>> record a far greater (up to 6 stops greater) range of contrast than
>> reversal film. The difficulty is then finding a medium which will
>> support this dynamic range in viewable positive form... paper prints
>> don't even come close, and if you're going to wind up with a film
>> positive you may as well for all intents and purposes start with one!

>If negative film can record a far greater range of contrast than reversal
>film, then why don't those computer types use negative film then scan the 
>negatives, as if they were positives, then let Photoshop, or a comperable 
>program mathamatically reverse them, thus keeping all the contrast?

How many bits per pixel per color does Photo-CD store? The commercial
service is usually done from negatives, isn't it?

John R


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