From:	TERRY KING, 101522,2625
TO:	Peter Marshall, INTERNET:petermarshall@cix.compulink.co.uk
DATE:	09/06/96 18:11
RE:	Copy of: Re: physiology vs. sensitometry
Peter
 The negatives produced would be more like the ones that Terry 
> prefers (or thinks superior) for platinum
There is no doubt that they produce superior results !
 Grain and sharpness were hardly of importance - and very dense negs 
> were no great problem.  Once enlargement became important photographers needed
to rethink their 
> methods
Why ?
 and aim for lower density, less grainy and sharper negs  - and so 
> the need for the Zone system.
Is not that just what we have been saying ?
 It was _not_ a response to any problems of 
> silver gelatine printing paper 
> results. 
So why all the agony ?
Terry