Re: Darkloading

["Willem-Jan Markerink" <w.j.markerink@xxxxx>]

On 11 Aug 96 at 17:35, George L Smyth wrote:

> > The Konica shows two separate areas of sensitivity, one peaking at
> > 440nm, and one at 740nm. Between 520 and 660nm, the sensitivity is
> > nil.
> 
> Well, don't put too much stock in the documentation that Konica sent
> you.  If you look again, you'll notice that both indicies aren't
> labeled.  What appears to indicate a lack of sensitivity is merely where
> the curve falls off the chart.  Were the vertical coordinate labeled (as
> it should have been) and the chart extended to include the full line,
> I'm sure we'd see sensitization in that area.  

Mmm....but given the fact that the line is steep on a *log* 
chart, and hits the 0 log mark....doesn't that imply that it runs 
down *VERY* steep and definately to 0 when speaking in % of maximum 
sensitivity?
I thought those log charts were ment just for that: reading the 
behaviour around 0, the log behaving as an 'exploded view' of the 
Y-axis the more it goes to 0. 

But that indeed still doesn't mean the Konica spec's are correct
though....would be interesting to run a few tests with band pass
filters for that area.... 

--
Bye,

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The difference 
between men and boys
is the price of their toys

<w.j.markerink@xxxxx>
[note: 'a-one' & 'en-el'!]

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Topic No. 3