Quote Originally Posted by sanking
I am not sure that I would call SBR a function of development, ...

... there is certainly a correlation between time of develoment
and SBR, ...
Given the same developer, temperature and agitation,
time being the variable. Of course the subject and the
lighting also play a part.

As for myself, the SBR, Subject Brightness Range, is just
that and no more. Members of this group speak of the SBR
in terms of stops, zones, and maybe EVs. Dan