[argyllcms] Re: Eye-one and DTP94 using dispcal
- From: "Martin Weberg" <martin.weberg@xxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Mon, 4 Aug 2008 08:36:58 +0200
Here is a more detailed session:
dispcal -v -r -yl -K
Setting up the instrument
Instrument Type: Eye-One Pro
Serial Number: 313906
Firmware version: 503
CPLD version: 999
Date manufactured: 19-6-2007
U.V. filter ?: No
Measure Ambient ?: Yes
Tot. Measurement Count: 8082
Remission Spot Count: 691
Remission Scan Count: 754
Date of last Remission spot cal: Thu Jul 31 08:54:18 2008
Remission Spot Count at last cal: 682
Total lamp usage: 2635.150635
Place the instrument on its reflective white reference Serial no. 313906,
and then hit any key to continue,
or hit Esc, ^C or Q to abort:
// Placing the eye-one on the white reference.
Calibration complete
Setting up the instrument
Instrument Type: Eye-One Pro
Serial Number: 313906
Firmware version: 503
CPLD version: 999
Date manufactured: 19-6-2007
U.V. filter ?: No
Measure Ambient ?: Yes
Tot. Measurement Count: 8082
Remission Spot Count: 691
Remission Scan Count: 754
Date of last Remission spot cal: Thu Jul 31 08:54:18 2008
Remission Spot Count at last cal: 682
Total lamp usage: 2635.150635
Place cap on the instrument, or place in on a dark surface,
or place on the white calibration reference,
and then hit any key to continue,
or hit Esc, ^C or Q to abort:
// Having read Graemes reply, the suggestion to place the instrument on the
white calibration reference seem wrong. I use the ambient measuring head
with cap on.
Calibration complete
Place instrument on test window.
Hit Esc, ^C or Q to give up, any other key to continue:
// Placing the eye-one on the display, in its display calibration holder.
patch 3 of 3
Current calibration response:
Black level = 0.55 cd/m^2
White level = 189.74 cd/m^2
Aprox. gamma = 2.29
Contrast ratio = 346:1
White chromaticity coordinates 0.3450, 0.3444
White Correlated Color Temperature = 4980K, DE to locus = 5.3
White Correlated Daylight Temperature = 4974K, DE to locus = 9.1
White Visual Color Temperature = 5100K, DE to locus = 5.0
White Visual Daylight Temperature = 5203K, DE to locus = 8.7
Effective LUT entry depth seems to be -1073742664 bits
The instrument can be removed from the screen.
Trying to get rid of the hassle using the ambient reading cap, I try placing
the eye-one on an opaque surface (my desktop). Now without the -K setting:
dispcal -v -r -yl
Setting up the instrument
Instrument Type: Eye-One Pro
Serial Number: 313906
Firmware version: 503
CPLD version: 999
Date manufactured: 19-6-2007
U.V. filter ?: No
Measure Ambient ?: Yes
Tot. Measurement Count: 8082
Remission Spot Count: 691
Remission Scan Count: 754
Date of last Remission spot cal: Thu Jul 31 08:54:18 2008
Remission Spot Count at last cal: 682
Total lamp usage: 2635.150635
Place cap on the instrument, or place in on a dark surface,
or place on the white calibration reference,
and then hit any key to continue,
or hit Esc, ^C or Q to abort:
// Placing the eye-one on my desktop, in its display calibration holder.
Calibration complete
Place instrument on test window.
Hit Esc, ^C or Q to give up, any other key to continue:
// Placing the eye-one on the display, in its display calibration holder.
patch 3 of 3
Current calibration response:
Black level = 0.62 cd/m^2
White level = 209.56 cd/m^2
Aprox. gamma = 2.42
Contrast ratio = 337:1
White chromaticity coordinates 0.3425, 0.3615
White Correlated Color Temperature = 5126K, DE to locus = 8.0
White Correlated Daylight Temperature = 5129K, DE to locus = 4.1
White Visual Color Temperature = 4946K, DE to locus = 7.7
White Visual Daylight Temperature = 5047K, DE to locus = 3.9
Effective LUT entry depth seems to be -1073742656 bits
The instrument can be removed from the screen.
Hum, some differences.
Then I try the DTP94 with and without -K setting:
dispcal -v -r -yl -K
Setting up the instrument
Instrument Type: DTP94
Serial Number: 100440
Boot version: D929
Software version: DB06
Place cap on the instrument, or place in on a dark surface,
or place on the white calibration reference,
and then hit any key to continue,
or hit Esc, ^C or Q to abort:
// Placing the DTP94 on my desktop
Calibration complete
Setting up the instrument
Instrument Type: DTP94
Serial Number: 100440
Boot version: D929
Software version: DB06
Place instrument on test window.
Hit Esc, ^C or Q to give up, any other key to continue:
patch 3 of 3
Current calibration response:
Black level = 0.43 cd/m^2
White level = 153.62 cd/m^2
Aprox. gamma = 2.43
Contrast ratio = 357:1
White chromaticity coordinates 0.3488, 0.3595
White Correlated Color Temperature = 4893K, DE to locus = 3.8
White Correlated Daylight Temperature = 4893K, DE to locus = 1.2
White Visual Color Temperature = 4819K, DE to locus = 3.6
White Visual Daylight Temperature = 4914K, DE to locus = 1.1
Effective LUT entry depth seems to be -1073742664 bits
The instrument can be removed from the screen.
Without -K setting.
dispcal -v -r -yl
Setting up the instrument
Instrument Type: DTP94
Serial Number: 100440
Boot version: D929
Software version: DB06
Place instrument on test window.
Hit Esc, ^C or Q to give up, any other key to continue:
patch 3 of 3
Current calibration response:
Black level = 0.42 cd/m^2
White level = 156.13 cd/m^2
Aprox. gamma = 2.44
Contrast ratio = 372:1
White chromaticity coordinates 0.3494, 0.3602
White Correlated Color Temperature = 4873K, DE to locus = 3.9
White Correlated Daylight Temperature = 4874K, DE to locus = 1.0
White Visual Color Temperature = 4796K, DE to locus = 3.8
White Visual Daylight Temperature = 4891K, DE to locus = 0.9
Effective LUT entry depth seems to be -1073742656 bits
The instrument can be removed from the screen.
basiccolor display and DTP94 calibrated on my desktop reports:
White Point: Target D50, Achieved delta 0.5 deltab 1.6
Luminence White: 156 cd/m^2
Luminence Black: 0.44 cd/m^2
Contrast: 355:1
basiccolor display and eye-one calibrated on my desktop (I was wrong in my
previous post, saying basiccolor display calibrates on the white reference)
reports:
White Point: Target D50, Achieved delta -4.1 deltab 1.2
Luminence White: 153 cd/m^2
Luminence Black: 0.42 cd/m^2
Contrast: 359:1
Apart from the white point no difference between the DTP94 and eye-one
readings using basiccolor display.
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