Re: using a scanner as a densitometer?

Charles,

I use my Epson 2450 with Vuescan as an (approximate) densitometer. The
following page summarises my findings with this system:

www.mynett.plus.net/ep2450/2450densi.htm

(To get the OD display, you need to make sure that the Enable density
display box is checked in the Prefs tab in Advanced Mode.)

-- 
Best wishes
 Alan                            
http://www.mynett.org.uk
> Charles,
> I have an Epson 4870 and I can't scan a step tablet at least not all of it
> at the same time, to much density range. But for normal negative using
> VueScan I get a direct measure of density. How accurate is it well I don't
> know but you could use your transmission densitometer to verify and maybe
> find a relation between the two.
> Regards
> Yves
> PS. Vuescan is free to download and you could use it to make your measures
> but you couldn't save a scan.
> ----- Original Message -----
> From: "ryberg" <cryberg@comcast.net>
> To: <alt-photo-process-l@sask.usask.ca>; <alt-photo-process-L@usask.ca>
> Sent: Tuesday, February 21, 2006 12:27 PM
> Subject: using a scanner as a densitometer?
>> I've read a couple of casual mentions of using a scanner as a
> densitometer.
>> My Epson 3200 reads the density as my choice of 0 to 100% or 0 to 255
> units.
>> The only way I can think of to get a log density reading is to scan a step
>> tablet as the same time I scan a negative and make comparison of the
>> readouts.  Is there another way?
>> Charles   Portland OR
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