Digital BW, The Print

Hi Paul,

> "The range of lightness levels that the eye can perceive at any
> one time is,
> at most, several hundred to one. ..."  See,
> <http://www.kodak.com/US/en/corp/researchDevelopment/technologyFea
> tures/oled
> 2002Lum.shtml>
>
> If we are trying to get the maximum impact from a piece of paper/print,
> increasing the dmax has been a goal.  However, I think we are seeing
> decreasing utility from the increases at about a dmax of 2.0.  That is,
> there seems to be little reason to go above log 2.0.  Does this possibly
> relate to the 100:1 range the eye can see at a single time?  If I
> understand
> my log scales, each number is a factor of 10.  So, perhaps 2.0 is
> where our
> limit is.

You are confusing dynamic range with density range.  They are not the same,
but under certain circumstances, can just so happen to coincide...but this
is not the case here.

Obviously, we can see more than a dMax of 2.0, or slides wouldn't do us any
good!

Regards,

Austin