Re: Colorsync-users Digest, Vol 11, Issue 26
You can find the numbers in the download area of the website of the CIE (International Commission on Illumination) http://www.cie.co.at Best Regards, Fons Put VIGC On 3/6/14 9:00 PM, "colorsync-users-request@lists.apple.com" <colorsync-users-request@lists.apple.com> wrote:
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Today's Topics:
1. Graph and numbers for SPD of iluminants D55 and D65. (Joseph Chamberlain) 2. RE: Graph and numbers for SPD of iluminants D55 and D65. (Roger Breton) 3. Re: Graph and numbers for SPD of iluminants D55 and D65. (Steve Jenkins) 4. Re: Graph and numbers for SPD of iluminants D55 and D65. (Matthew Ward)
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Message: 1 Date: Wed, 05 Mar 2014 13:53:52 -0800 From: Joseph Chamberlain <drjchamberlain@gmail.com> To: "colorsync-users@lists.apple.com" <colorsync-users@lists.apple.com> Subject: Graph and numbers for SPD of iluminants D55 and D65. Message-ID: <1C0B9678-580A-440A-8D2C-EB6A15F7B127@gmail.com> Content-Type: text/plain; charset=us-ascii
Hi, everyone.
I am looking for both a graph and numerical values of the SPD (spectral power distribution) of illuminants D55 and D65 but haven't had much luck.
The information I need is the power distribution for wavelengths across the visible spectra in 5 to 10 nm increments. I would like to have both the numerical values and also a graph showing this power distribution.
Is anyone aware of where I can find this information ?
Thank you in advance,
Joseph.
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Message: 2 Date: Wed, 05 Mar 2014 17:23:15 -0500 From: Roger Breton <graxx@videotron.ca> To: "'Joseph Chamberlain'" <drjchamberlain@gmail.com>, colorsync-users@lists.apple.com Subject: RE: Graph and numbers for SPD of iluminants D55 and D65. Message-ID: <02f001cf38c1$80881800$81984800$@videotron.ca> Content-Type: text/plain; CHARSET=US-ASCII
These datasets float on a few servers around the world. San Diego University Color Vision site is one source I know who has them. The Munsell Color Science Institute is another site which I used in the past that I remember has them.
Best / Roger
-----Original Message----- From: colorsync-users-bounces+graxx=videotron.ca@lists.apple.com [mailto:colorsync-users-bounces+graxx=videotron.ca@lists.apple.com] On Behalf Of Joseph Chamberlain Sent: Wednesday, March 5, 2014 4:54 PM To: colorsync-users@lists.apple.com Subject: Graph and numbers for SPD of iluminants D55 and D65.
Hi, everyone.
I am looking for both a graph and numerical values of the SPD (spectral power distribution) of illuminants D55 and D65 but haven't had much luck.
The information I need is the power distribution for wavelengths across the visible spectra in 5 to 10 nm increments. I would like to have both the numerical values and also a graph showing this power distribution.
Is anyone aware of where I can find this information ?
Thank you in advance,
Joseph. _______________________________________________ Do not post admin requests to the list. They will be ignored. Colorsync-users mailing list (Colorsync-users@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/colorsync-users/graxx%40videotron. ca
This email sent to graxx@videotron.ca
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Message: 3 Date: Wed, 05 Mar 2014 18:06:15 -0500 From: Steve Jenkins <sj9000@comcast.net> To: Joseph Chamberlain <drjchamberlain@gmail.com>, colorsync-users@lists.apple.com Subject: Re: Graph and numbers for SPD of iluminants D55 and D65. Message-ID: <941A1407BBC740E887EAA6F6EF061DA1@ENZO> Content-Type: text/plain; charset=UTF-8
----- Original Message ----- From: "Joseph Chamberlain" <drjchamberlain@gmail.com> Subject: Graph and numbers for SPD of iluminants D55 and D65.
Hi, everyone.
I am looking for both a graph and numerical values of the SPD (spectral power distribution) of illuminants D55 and D65 but haven't had much luck.
Joseph,
These values were taken from "Illuminations.cxf", a file included with Eye-One Share. The data is in "lambda - Power" format - not sure why the D65 has more decimal places.
D55 380 - 32.58 390 - 38.09 400 - 60.95 410 - 68.55 420 - 71.58 430 - 67.91 440 - 85.61 450 - 97.99 460 - 100.46 470 - 99.91 480 - 102.74 490 - 98.08 500 - 100.68 510 - 100.7 520 - 99.99 530 - 104.21 540 - 102.1 550 - 102.97 560 - 100.0 570 - 97.22 580 - 97.75 590 - 91.43 600 - 94.42 610 - 95.14 620 - 94.22 630 - 90.45 640 - 92.33 650 - 88.85 660 - 90.32 670 - 93.95 680 - 89.96 690 - 79.68 700 - 82.84 710 - 84.84 720 - 70.24 730 - 79.3
D65 380 - 49.9755 390 - 54.6482 400 - 82.7549 410 - 91.486 420 - 93.4318 430 - 86.6823 440 - 104.865 450 - 117.008 460 - 117.812 470 - 114.861 480 - 115.923 490 - 108.811 500 - 109.354 510 - 107.802 520 - 104.79 530 - 107.689 540 - 104.405 550 - 104.046 560 - 100.0 570 - 96.3342 580 - 95.788 590 - 88.6856 600 - 90.0062 610 - 89.5991 620 - 87.6987 630 - 83.2886 640 - 83.6992 650 - 80.0268 660 - 80.2146 670 - 82.2778 680 - 78.2842 690 - 69.7213 700 - 71.6091 710 - 74.349 720 - 61.604 730 - 69.8856
HTH - Steve
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Message: 4 Date: Thu, 06 Mar 2014 13:29:40 +0000 From: Matthew Ward <matthew@matthewwardphotography.com> To: "'colorsync-users?lists.apple.com' List" <colorsync-users@lists.apple.com> Subject: Re: Graph and numbers for SPD of iluminants D55 and D65. Message-ID: <64EF14D5-9931-451A-BDEC-6F69E3FEAB8F@matthewwardphotography.com> Content-Type: text/plain; charset=us-ascii
Hi does anyone know if there are figures for an approximation for generic flash? Just for a comparative graph
Best Matthew Ward ________________________________ Matthew Ward matthew@matthewwardphotography.com 07850 611 778 www.matthewwardphotography.com www.imagebasedlighting.co.uk ________________________________
Hi, everyone.
I am looking for both a graph and numerical values of the SPD (spectral power distribution) of illuminants D55 and D65 but haven't had much luck.
Joseph, These values were taken from "Illuminations.cxf", a file included with Eye-One Share. The data is in "lambda - Power" format - not sure why the D65 has more decimal places.
D55
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End of Colorsync-users Digest, Vol 11, Issue 26 ***********************************************
Hi thanks, unfortunately there is no data for flash. I could try measuring it directly but I suspect it might upset (i.e. fry) the i1 even if it copes with the pulse of light. Best Matthew Ward On 6 Mar 2014, at 21:44, José Ángel Bueno García <jbueno61@gmail.com> wrote:
Take a look at this http://www.rmimaging.com/spectral_library/library_index.html
Since generic flash isn't illuminant there is not information. You may measure along the life time of the system. Pyrex, diffusers,... may vary the measurements.
On 7 Mar 2014, at 07:39, Fons Put <fons.put@vigc.be> wrote:
You can find the numbers in the download area of the website of the CIE (International Commission on Illumination) http://www.cie.co.at
2014-03-06 13:29 GMT+00:00 Matthew Ward <matthew@matthewwardphotography.com>: Hi does anyone know if there are figures for an approximation for generic flash? Just for a comparative graph Best Matthew Ward
Matthew: I have measured flash with i1Match and SpectraShop. SpectraShop allows to use the measurements with PictoColor's inCamera Photoshop Plug-in and create profiles with ColorChecker SG. So you aren't going to get your i1Pro fried. Salud Jose Bueno 2014-03-07 8:52 GMT+00:00 Matthew Ward <matthew@matthewwardphotography.com>:
Hi thanks, unfortunately there is no data for flash. I could try measuring it directly but I suspect it might upset (i.e. fry) the i1 even if it copes with the pulse of light.
Best Matthew Ward
On 6 Mar 2014, at 21:44, José Ángel Bueno García <jbueno61@gmail.com> wrote:
Take a look at this http://www.rmimaging.com/spectral_library/library_index.html
Since generic flash isn't illuminant there is not information. You may measure along the life time of the system. Pyrex, diffusers,... may vary the measurements.
On 7 Mar 2014, at 07:39, Fons Put <fons.put@vigc.be> wrote:
You can find the numbers in the download area of the website of the CIE (International Commission on Illumination) http://www.cie.co.at
2014-03-06 13:29 GMT+00:00 Matthew Ward < matthew@matthewwardphotography.com>: Hi does anyone know if there are figures for an approximation for generic flash? Just for a comparative graph
Best Matthew Ward _______________________________________________ Do not post admin requests to the list. They will be ignored. Colorsync-users mailing list (Colorsync-users@lists.apple.com) Help/Unsubscribe/Update your Subscription:
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Matthew Ward wrote:
Hi thanks, unfortunately there is no data for flash. I could try measuring it directly but I suspect it might upset (i.e. fry) the i1 even if it copes with the pulse of light.
It's perfectly possible to measure flash with an i1pro or ColorMunki. ArgyllCMS spotread will let you do this for instance. Graeme Gill.
----- Original Message ----- From: "Graeme Gill" <graeme2@argyllcms.com>
Matthew Ward wrote:
Hi thanks, unfortunately there is no data for flash. I could try measuring it directly but I suspect it might upset (i.e. fry) the i1 even if it copes with the pulse of light.
It's perfectly possible to measure flash with an i1pro or ColorMunki. ArgyllCMS spotread will let you do this for instance.
Graeme Gill.
The excellent free Eye-One Share software also has a flash SPD function. Steve
Thanks My Eye-One Share will indeed measure the flash but I cannot get it to export. It stopped being supported at OSX10.4. I guess its time to move on to Argyll and learn to enjoy command line computing. Don’t you just love reversing away from the job in hand, I’ll just go make a cup of tea - starting with inventing fire and agriculture. Best Matthew ________________________________ Matthew Ward matthew@matthewwardphotography.com 07850 611 778 www.matthewwardphotography.com www.imagebasedlighting.co.uk ________________________________ On 8 Mar 2014, at 14:50, Steve Jenkins <sj9000@comcast.net> wrote:
----- Original Message ----- From: "Graeme Gill" <graeme2@argyllcms.com>
Matthew Ward wrote:
Hi thanks, unfortunately there is no data for flash. I could try measuring it directly but I suspect it might upset (i.e. fry) the i1 even if it copes with the pulse of light.
It's perfectly possible to measure flash with an i1pro or ColorMunki. ArgyllCMS spotread will let you do this for instance.
Graeme Gill.
The excellent free Eye-One Share software also has a flash SPD function.
Steve
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On Mar 12, 2014, at 2:32 AM, Matthew Ward <matthew@matthewwardphotography.com> wrote:
My Eye-One Share will indeed measure the flash but I cannot get it to export. It stopped being supported at OSX10.4. I guess its time to move on to Argyll and learn to enjoy command line computing.
Or do what I did, pick up a dirt cheap Macbook that can run old versions of OS X for these cases. Got one on ebay for $160. Andrew Rodney http://www.digitaldog.net/
Hello Mathew, There are also two third party app that can do the job (BabelColor CT&A, from me, and Spectrashop): Here is a screenshot showing a flash measurement from BabelColor CT&A's Graph tool: http://www.babelcolor.com/main_level/screen_shots/CT&A_Graph.htm Danny dpascale@babelcolor.com www.babelcolor.com ----- Original Message ----- From: "Matthew Ward" <matthew@matthewwardphotography.com> To: "Steve Jenkins" <sj9000@comcast.net>; <graeme2@argyllcms.com> Cc: <colorsync-users@lists.apple.com> Sent: Wednesday, March 12, 2014 4:32 AM Subject: Re: Graph and numbers for SPD of iluminants D55 and D65.
Thanks My Eye-One Share will indeed measure the flash but I cannot get it to export. It stopped being supported at OSX10.4. I guess its time to move on to Argyll and learn to enjoy command line computing.
Don’t you just love reversing away from the job in hand, I’ll just go make a cup of tea - starting with inventing fire and agriculture.
Best Matthew ________________________________ Matthew Ward matthew@matthewwardphotography.com 07850 611 778 www.matthewwardphotography.com www.imagebasedlighting.co.uk ________________________________
On 8 Mar 2014, at 14:50, Steve Jenkins <sj9000@comcast.net> wrote:
----- Original Message ----- From: "Graeme Gill" <graeme2@argyllcms.com>
Matthew Ward wrote:
Hi thanks, unfortunately there is no data for flash. I could try measuring it directly but I suspect it might upset (i.e. fry) the i1 even if it copes with the pulse of light.
It's perfectly possible to measure flash with an i1pro or ColorMunki. ArgyllCMS spotread will let you do this for instance.
Graeme Gill.
The excellent free Eye-One Share software also has a flash SPD function.
Steve
I've used Babelcolor for that purpose. Works perfect. And you can learn a lot about how flashes behave on different energy levels. Cheaper flashes changes both color temperature and their spectral distribution. Best Stefan 12 mar 2014 kl. 16:01 skrev dpascale:
Hello Mathew,
There are also two third party app that can do the job (BabelColor CT&A, from me, and Spectrashop):
Here is a screenshot showing a flash measurement from BabelColor CT&A's Graph tool: http://www.babelcolor.com/main_level/screen_shots/CT&A_Graph.htm
Danny
dpascale@babelcolor.com www.babelcolor.com
----- Original Message ----- From: "Matthew Ward" <matthew@matthewwardphotography.com> To: "Steve Jenkins" <sj9000@comcast.net>; <graeme2@argyllcms.com> Cc: <colorsync-users@lists.apple.com> Sent: Wednesday, March 12, 2014 4:32 AM Subject: Re: Graph and numbers for SPD of iluminants D55 and D65.
Thanks My Eye-One Share will indeed measure the flash but I cannot get it to export. It stopped being supported at OSX10.4. I guess its time to move on to Argyll and learn to enjoy command line computing.
Don’t you just love reversing away from the job in hand, I’ll just go make a cup of tea - starting with inventing fire and agriculture.
Best Matthew ________________________________ Matthew Ward matthew@matthewwardphotography.com 07850 611 778 www.matthewwardphotography.com www.imagebasedlighting.co.uk ________________________________
On 8 Mar 2014, at 14:50, Steve Jenkins <sj9000@comcast.net> wrote:
----- Original Message ----- From: "Graeme Gill" <graeme2@argyllcms.com>
Matthew Ward wrote:
Hi thanks, unfortunately there is no data for flash. I could try measuring it directly but I suspect it might upset (i.e. fry) the i1 even if it copes with the pulse of light.
It's perfectly possible to measure flash with an i1pro or ColorMunki. ArgyllCMS spotread will let you do this for instance.
Graeme Gill.
The excellent free Eye-One Share software also has a flash SPD function.
Steve
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Mathew,
I guess its time to move on to Argyll and learn to enjoy command line computing.
You can put a GUI on Argyll here... http://dispcalgui.hoech.net Mark
Thanks slightly disturbed that on firing the gui up, it immediately removes the monitor profile, and on closing it down, the monitor profile has to be manually reselected-if you happen to notice. Best Matthew Ward ________________________________ Matthew Ward matthew@matthewwardphotography.com 07850 611 778 www.matthewwardphotography.com www.imagebasedlighting.co.uk ________________________________ On 13 Mar 2014, at 12:38, Mark Stegman <mark.stegman@gmail.com> wrote:
Mathew,
I guess its time to move on to Argyll and learn to enjoy command line computing.
You can put a GUI on Argyll here...
Mark
Hi, [ apologies for the late reply, I don't read the list very regularly ]
slightly disturbed that on firing the gui up, it immediately removes the monitor profile, and on closing it down, the monitor profile has to be manually reselected-if you happen to notice.
that shouldn't happen, but there's always the possibility of a bug. I'm prepared to try and troubleshoot this if you're interested, feel free to contact me off-list. -- Florian Höch
participants (10)
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Andrew Rodney
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dpascale
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Florian Höch
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Fons Put
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Graeme Gill
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José Ángel Bueno García
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Mark Stegman
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Matthew Ward
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Stefan Ohlsson
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Steve Jenkins