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<div>A question & a comment:</div>
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<div>It would be really useful to know whether you (or someone) has Matlab software to read the Spyder. If it's custom-written (and doesn't come with the device) it might be possible to make such software freely available via the Mathworks 'user-contributed'
website, or via the Psychtoolbox.</div>
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<div>Comment: since luminance is invariant with distance, it shouldn't matter in principle what distance the meter is at.</div>
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<div><font class="Apple-style-span" face="Calibri">--</font></div>
<div><font class="Apple-style-span" face="Calibri">Mark Georgeson</font></div>
<div><font class="Apple-style-span" face="Calibri">Honorary Professor of Vision Sciences</font></div>
<div><font class="Apple-style-span" face="Calibri">School</font><span style="font-family: Calibri; "> of Life & Health Sciences</span></div>
<div><font class="Apple-style-span" face="Calibri">Aston University</font></div>
<div><font class="Apple-style-span" face="Calibri">Birmingham, UK</font></div>
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<div><font class="Apple-style-span" face="Consolas">Web: http://www1.aston.ac.uk/lhs/staff/az-index/georgema</font></div>
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<span style="font-weight:bold">From: </span>visionlist <<a href="mailto:visionlist-bounces@visionscience.com">visionlist-bounces@visionscience.com</a>> on behalf of Farid Kandil <<a href="mailto:f.kandil@uke.de">f.kandil@uke.de</a>><br>
<span style="font-weight:bold">Date: </span>Thursday, 23 March 2017 11:36<br>
<span style="font-weight:bold">To: </span>"<a href="mailto:visionlist@visionscience.com">visionlist@visionscience.com</a>" <<a href="mailto:visionlist@visionscience.com">visionlist@visionscience.com</a>><br>
<span style="font-weight:bold">Subject: </span>Re: [visionlist] Low cost photometer/colorimeter<br>
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<div bgcolor="#FFFFFF" text="#000000"><font size="+1">Dear Dani,<br>
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yes, I have got a Spyder 4.<br>
We use it as a photometer under Linux (Ubuntu).<br>
In contrast to our Minolta L 110 photometer, this was much much much less expensive, of course.<br>
The results are more stable than for the Minolta (since the are used for the measurement is shielded).<br>
In contrast, measuring with the Minolta gives more variable responses depending on the exact angle
<br>
which with you shot. However, using the Minolta, you measure the luminance felt from the exact distance<br>
of the subject. This is the most significant difference.<br>
<br>
Cheers,<br>
<br>
farid<br>
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<div class="moz-cite-prefix">On 22.03.2017 14:42, Dani Linares wrote:<br>
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<blockquote cite="mid:CACMn+zSheeWe9pQHOin7wS7qhDe=2_U8e0Ai804_oZ2yD2+zZg@mail.gmail.com" type="cite">
<div dir="ltr">Any recommendation on low cost photometer/colorimeter?
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<div>Anyone has experience with Spider (<a moz-do-not-send="true" href="http://spyder.datacolor.com/display-calibration/">http://spyder.datacolor.com/display-calibration/</a>)?</div>
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<div>dani<br clear="all">
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-- <br>
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<div dir="ltr">Daniel Linares<br>
<a moz-do-not-send="true" href="http://www.dlinares.org" target="_blank">www.dlinares.org</a>
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<pre class="moz-signature" cols="72">--
Dr. Farid I. Kandil
Wiss. Mitarbeiter
Dipl.-Psychologe
Universitätsklinikum Hamburg-Eppendorf (UKE)
Institut für Computational Neuroscience
Martinistraße 52
20246 Hamburg
Geb. W36 / Raum 104
Tel +49 (0)40 7410-57166
Lab +49 (0)40 7410-59828
Fax +49 (0)40 7410-54882
Email <a class="moz-txt-link-abbreviated" href="mailto:f.kandil@uke.de">f.kandil@uke.de</a></pre>
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