The iSis white LED does not emit UV. So it can scan only M2 in a single
pass. To derive M0 it needs to scan a second time with the UV LED.
On Mon, 6 May 2019, 13:17 Cody Ranaldo, <lessbones@xxxxxxxxx> wrote:
That would make sense for the Isis2, but the original ISIS only had M0/M2,
and the thing that gave me pause is that i1profiler will only allow an M0
measurement in a “double scan” mode, which takes twice as long, whereas it
will do M2 as a single scan.
I have not tested yet with colorport or anything else (just got the thing)
but it seemed odd and annoying to have to spend twice as long to do what I
would generally consider a baseline measurement...
------------------------------
*From:* argyllcms-bounce@xxxxxxxxxxxxx on behalf of Graeme Gill <
graeme@xxxxxxxxxxxxx>
*Sent:* Sunday, May 5, 2019 9:33 PM
*To:* argyllcms@xxxxxxxxxxxxx
*Subject:* [argyllcms] Re: ISIS XL, Is there a M0 Reading or is it
combining M1 with UV?
Derin Korman wrote:
We were discussing the original ISIS XL. Does anyone definitively knowwhether the ISIS XL
has a mechanically engaged UV cutoff filter that it uses with a ILL-Abulb or is it just
combining a non-uv light with the output of the uv-led to simulateilluminant A?
My understanding of it is that (much like the ColorMunki) the ISIS has LED
illumination.
Like the i1Pro2 it also has a UV LED, and by processing measurements made
with the UV LED
on and off it computes the M1 and M2 results. (I might be wrong about this
though - it's a
while since I looked at the ISIS).
Cheers,
Graeme Gill.
