OK Photo wrote:

> 
>> It used to be printed on photographic paper you know, using the same 
>> filter pack
>> for an entire roll, or even an entire batch of film!
> 
> 
> That would be true if the entire roll was shot using the
> same exposure, lighting, etc.
> 
> Change your exposure, lighting, etc. and your into a
> different filter setting.
> This why we have slope control on automated photo printers.
> 
> Paul

It is also why greycards exist.

Art

Reply via email to