Datacolor User to User Support Group.

John, it can't hurt anything if you calibrate more often than less often.
The harm comes when the spectro has been subjected to different
temps/humidities/etc.  I don't know exactly what the variables are that
cause the spectro sensor to drift, but if your test standard hasn't changed,
your calibration will always bring the device into line.

-kris

p.s. I'm not sure I'd do the hairdryer thing.  The extra heat might cause
some extra shift.  Why not just print the targets and let them dry
overnight?

 

> -----Original Message-----
> From: colorvision_group@yahoogroups.com 
> [mailto:colorvision_group@yahoogroups.com] On Behalf Of John Vitollo
> Sent: Tuesday, February 28, 2006 10:42 AM
> To: colorvision_group@yahoogroups.com
> Subject: [colorvision_group] Re: Is there a ball park time 
> limit in between calibrations? Spectro that is!
> 
> "Kris" wrote:
> > I used to use Kodak Colorflow for building profiles, and when the 
> > software started up it would tell me if it had been over 6 
> hours, and 
> > it wouldn't proceed without spectro calibration.  I don't 
> know where 
> > they got the 6-hour thing, but is a reference point of some kind.  
> > (this was with X-rite dtp-41)
> 
> 
> Thanks Kris for the great info.
> 
> I'm using a hair drier to dry the targets before reading.
> 
> So my new question is regarding spectro drift: 
> 
> Can I calibrate the spectro in the morning and read targets all day?
> 
> Or do I need to calibrate the spectro more often than every six hours?
> 
> Thanks,
> 
> John
> 
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