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Re: Ambient measurements with PM 4.1.5
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Re: Ambient measurements with PM 4.1.5


  • Subject: Re: Ambient measurements with PM 4.1.5
  • From: Steve Upton <email@hidden>
  • Date: Fri, 24 Oct 2003 11:27:18 -0700

At 8:09 AM -0400 10/24/03, Roger Breton wrote:
>Hello Alex and Thomas,
>
>Can you give any details about the measurement geometry of the i1 in this
>mode? This is not Emissive mode but measuring light falling the head of the
>i1 as in trying to characterize the spectrum from a light source, right?

Technically it is not emissive mode as that is not including the diffusion.

When you use an ambient-capable Eye-One to take an ambient reading, you attach a small black cap to the Eye-One that has a white diffusion chip in it. What they are trying to achieve is the 0-degree geometry with a "perfect" diffuser - that's written somewhere in a technical spec as the official method for taking ambient light readings. (I'm sure someone else on the list can tell us the spec)

> I
>assume you guys are refering to the i1 Photo. Do they say (Gretagmacbeth) in
>what radiometric units is the i1 measuring in this mode: microWatts / m2/sr?

Eye-One Photo or "better". This would include any of the other bundles the Eye-One Spectro comes with such as Publish, Beamer and Pro (w/ ProfileMaker 4).

>Seriously thinking about upgrading my i1 to an i1 Photo. (or Publish?)

If you have a Display, Monitor or older Pro then you will need the upgrade.

Regards,

Steve

________________________________________________________________________
o Steve Upton CHROMiX www.chromix.com
o (hueman) 866.CHROMiX
o email@hidden 206.985.6837
o ColorGear ColorThink ColorValet ColorSmarts ProfileCentral
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