[argyllcms] Re: i1 Pro2 / dark calibration timer
- From: "Tilman Hager" <tilman_temp@xxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Mon, 18 Nov 2013 22:30:52 +0100 (CET)
Hi,
those are the posts I'm referring to when talking about that built-in timer:
http://www.avsforum.com/t/1423300/i1pro-vs-i1pro2/30#post_22376593
http://www.avsforum.com/t/1403754/new-i1pro-2-spectrophotometer/30#post_21895371
Since I don't have that SDK, I cannot verify their claims though.
And thanks for the hint on that -N option! I have seen it in the Argyll
documentation, but thought that dispcalGUI would set it automatically when
having "Allow skipping of spectrometer self-calibration" checked - it didn't.
>
> Hi,
>
>> the i1 Pro 2 spectrophotometer reportedly has a dynamic "dark calibration
>> timer", that
>> can be read out by software and tells if the device is still usable or has
>> to be
>> calibrated again.
>
> not that I'm aware of, no. Some calibration time info can be stored in the
> EEProm,
> so the OEM software can use that to set a timeout. The ArgyllCMS drivers do a
> similar
> thing, but they save the calibration info to a file, rather than writing to
> the
> device.
>
>> When using dispcalGUI with ArgyllCMS 1.6.1, I get asked to calibrate my
>> device before
>> every single task (like calibrating, profiling, veryfing, etc.), which gets
>> pretty
>> annoying over time - especially when calibrating a projector - since one has
>> to move
>> the meter everytime and hope to get it in the exact same position again after
>> black-point-calibration.
>
>> So my question is, if there are any plans to do so, or if there is any other
>> way to
>> prevent dispcal from forcing me to calibrate my meter everytime before doing
>> measurements?
>
> The -N flag is intended specifically for this purpose.
>
> Graeme Gill.
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