January 2012 - colorsync-users

Re: Are Canon IPF printers any reliable?
by Keith Cooper 28 Jan '12

28 Jan '12

I'm currently using an iPF8300 as our main printer I've an ongoing 'diary' covering usage issues I've come across <http://www.northlight-images.co.uk/reviews/printer/canon_ipf8300.html> This follows on from reviews of the 5100/6100/6300 <http://www.northlight-images.co.uk/reviews/printer/canon_ipf6300-pt1.html> <http://www.northlight-images.co.uk/reviews/printer/canon_ipf_5100.html> Reliability wise I've no issues whatsoever, but I'm not a high volume printer. bye for now Keith -- Keith Cooper Northlight Images - Photography <http://www.northlight-images.co.uk/commercial_photo_services.html> Commercial - Architecture - Interiors - Industrial - Advertising - Landscape Tel +44 (0)116 291 9092

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Re: Are Canon IPF printers any reliable?
by Mike Strickler 28 Jan '12

28 Jan '12

I wouldn't think of trying to talk you into anything, but what is your beef with Epson? The 4000 is now a rather aged printer, and I shouldn't be too outraged if it were acting up by now. The problem as always with Stylus Pros is that there is no user option for replacing heads, and onsite service could cost more than the printer is worth. HP's best printers start at 24". The Z-series I know well--have two of them--give good results and have cheap, user-replaceable heads, but they are slow and very finicky--bossy, really. Maybe Canon really has the answer. If it were me, I would still get the SP 4900: fast, quiet, dependable, incredible image quality--top of the heap in 17" printers. > > Message: 4 > Date: Fri, 27 Jan 2012 19:25:47 -0500 > From: Roger Breton <graxx(a)videotron.ca> > To: colorsync-users List <colorsync-users(a)lists.apple.com> > Subject: Are Canon IPF printers any reliable? > Message-ID: <001601ccdd53$617bf740$2473e5c0$(a)videotron.ca> > Content-Type: text/plain; CHARSET=US-ASCII > > Now it's my turn. I can't put any more time and money on my old Epson 4000 > printer without ruining my bank account. So, I feel like someone who's > driven GM's for all his life and now wants to switch to an import. > > I only hear good things about Canon IPF printers. I'm especially considering > the 5100 as I don't really have a need for anything larger. > > So my question is, does anyone have anything good or bad to say about this > printer or Canon's in general? I intend to experiment with Canon's supplied > Photoshop plug-in, of course, but will surely drive it mostly from a CMYK > proofing RIP like ORIS or GMG or EFI. So I'm not too concerned about getting > the color I want. > > Some folks say they had to change print heads past warranty time? Some say > that pages are not cut straight? > > I thought Scott Martin could chime in with his experience? > > Please don't try to convince me to stay with Epson -- I won't. > > Best / Roger > > >

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IIF/ACES colorspace for video?
by Dennis Dunbar 27 Jan '12

27 Jan '12

I just heard about a new color space being adopted in the video world and wondered if anyone here knew about this and could explain a bit more about how it might fit in with the more standard color management practices we've used in the stills world for so long. Here's a clip from an email sent to me by Thomas Wall giving a brief explanation: "The ACES standard color space and the Image Interchange Framework that the Academy of Motion Picture Arts & Sciences has developed, and that is being adopted by SMPTE (among others), is almost unknown among photographers. This color space and interchange format will increasingly become the standard way of transferring files and archiving data in the motion picture and CGI industries. Photographers should also be using this format for the same reasons they do. The color space encompasses the entire visible spectrum, the entire CIE tri-stimulus gamut of human vision, and then some – wide enough to hold data from every foreseeable camera sensor and display technology without data loss due to out-of-gamut color coordinates. ACES is a linear color space; there is no baked-in gamma. It therefore matches the physical nature of light, the way that light sensors actually record it, and the way that computer graphics rendering is done. (Gamma adjustments are done as part of the output transforms for specific devices.) It is stored in floating point format, not as integers, and therefore has a dynamic range that goes from black to almost the intensity of the sun. It has a much more reasonable white point (D60, a standard daylight, and close to the REC709 white point used for HDTV) than ProPhoto RGB, and is larger than that color space. This color space, and the physics and logic behind it, are what we should be using these days; and products like LightRoom and CaptureOne should be able to produce and use it directly. We need to move beyond the dark ages of color management and image interchange standards. Whatever pressure we or the APA can apply to those software vendors, we should." Thanks! Dennis Dunbar Blog: http://www.dunbardigital.com/blog/blog.php Website: http://www.dunbardigital.com Twitter: http://twitter.com/DennisDunbar

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Re: DeltaE Calculator
by Mauro Boscarol 27 Jan '12

27 Jan '12

I wrote an app for iPhone and iPad. Information can be found at http://www.boscarol.com/en/deltae/. There is also a free AIR version. See http://www.downloadplex.com/Linux/Adobe-AIR-Apps/Graphic-Apps/Publisher-del… Mauro Boscarol

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Print profiles Lion vs pre-Lion
by Bob Smith 27 Jan '12

27 Jan '12

Since upgrading to 10.7.2... and also upgrading to i1Profiler I'm seeing some behavior that I can't explain. I can create and print through new profiles with excellent results. But trying to use profiles that I was happily using on pre-Lion systems gives distinctly lighter prints when printing from Photoshop CS5.1 on a Lion system. Those profiles were created with the same i1 Spectro using EyeOne Match. The tests below were on an Epson 4800 but I'm using several different Epsons. In every case, Color Management is turned off in the driver What I've found: Printing profile targets are identical if printed by any of these three methods... so I must be getting the basic print workflow correct: 1. Print from CS3 on a 10.4.11 system with "No Color Management" 2. Print from CS5 on a 10.7.2 system where I assign AdobeRGB to the Document and then Apply AdobeRGB as the print space (Photoshop manages color) 3. Print from the Adobe Color Printer Utility on a LIon system However test prints applying profiles aren't so consistent: 1. If I print a common test image from CS5.1/10.7.2 through a profile created on the same system it looks as expected. 2. If I print the same image on the same system through a profile created and used often on a 10.6.8 System, the print looks very light. 3. If I print the same image on a CS3/10.4.11 system using a profile built/used on 10.6.8 it looks as expected and very much like the print from #1 4. If I print the same image on a CS3/10.4.11 system using the profile created on a Lion system, the print is dark and overly saturated. Any idea what the heck is going on? I'm more than happy with the new profiles I'm creating/using but I hadn't planned on being REQUIRED to re-profile everything with an upgrade to Lion. Bob Smith Accurate Image • Bob Smith Photographer • Waco Texas USA http://www.accurateimage.org

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Re: IIF/ACES colorspace for video?
by Lars Borg 27 Jan '12

27 Jan '12

JP Aces is not raw. It's demosaiced, white-balanced, exposure-adjusted. Lars Sent from my Motorola ATRIX™ 4G on AT&T -----Original message----- From: Jan-Peter Homann <homann(a)colormanagement.de> To: "colorsync-users(a)lists.apple.com" <colorsync-users(a)lists.apple.com> Sent: Fri, Jan 27, 2012 10:31:02 GMT+00:00 Subject: Re: IIF/ACES colorspace for video? If the ACES format is used for handling "RAW" data of Digital Video Cameras, it could probably also used for RAW data of still photographs and could also be implented as an optional colorspace in the DNG Format. Jan-Peter Am 27.01.12 03:03, schrieb Lars Borg: > Dennis, > > Be aware that ACES is for unrendered images. > When would a photographer use unrendered images? > > Lars Borg > > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Colorsync-users mailing list (Colorsync-users(a)lists.apple.com) > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/colorsync-users/homann%40colormanag… > > This email sent to homann(a)colormanagement.de > -- ---------- Please note the new adress -------------- homann colormanagement --------- fon +49 30 611 075 18 Jan-Peter Homann ------------ mobile +49 171 54 70 358 Cotheniusstr. 3 -------- http://www.colormanagement.de 10407 Berlin -------- mailto:homann@colormanagement.de _______________________________________________ Do not post admin requests to the list. They will be ignored. Colorsync-users mailing list (Colorsync-users(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/colorsync-users/borg%40adobe.com This email sent to borg(a)adobe.com

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ColorEyes Display and Lion
by Derek Lambert 26 Jan '12

26 Jan '12

Does anyone have issues with CED and Lion as they have with BasICColor also? ------ Best Regards, Derek Lambert

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mid range monitors
by faro mojahedi 26 Jan '12

26 Jan '12

I am looking for a midrange monitor(about$600) to use for color correction, something similar to HP LP2475w. The latter has been on back order for a long time. Thanks you in advance. Faro

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Re: mid range monitors
by Dennis Dunbar 24 Jan '12

24 Jan '12

I just picked up a Dell U2410 monitor for $500 and am very happy with it. The color gamut is very good, when I used ColorThink to compare the gamut of this monitor to Adobe RGB it was a very close match. It's also easy to profile and shows very smooth gradations. And there are very few angle of view problems which helps a great deal with a client is looking over your shoulder. For the price I'd say it's a winner. HTH Dennis Dunbar Blog: http://www.dunbardigital.com/blog/blog.php Website: http://www.dunbardigital.com Twitter: http://twitter.com/DennisDunbar

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Re: Viewing DNG Metadata
by Louis Dina 23 Jan '12

23 Jan '12

Just wanted to report back on this issue and close the loop. As a quick recap, my friend was sending me some DNG files after adjusting them in LightRoom, and also applying his custom camera profile. When I imported the DNG files into LR on my end, all his adjustments remained in place *except* that Adobe Standard was the profile in the Calibration tab, and all his calibration sliders were set to zero (he often tweaks them, even when using his custom profile). I verified that I was doing everything correctly, had the right preferences and import settings, etc. *"Update DNG Previews & Metadata"* seems to do the trick. *"Save Metadata to File"* (or Command-S) doesn't always seem to work. But, after using Updated DNG Previews & Metadata, his files came over with his custom camera profile embedded in the DNG, and properly assigned to the file. >From what I read in the Help files ( http://help.adobe.com/en_US/Lightroom/3.0/Using/WS638E3AC9-A04C-4445-A0D3-F… ), LR automatically updates its catalog every time any change is made to an image from within LR. This apparently updates the catalog, but not necessarily the file itself. If you have your Preferences set to "Automatically Write Changes into XMP", then my understanding was that LR would update the DNG file with the settings in the Catalog (which are presumably the latest, if you only use LR to adjust your camera raw settings). Both my friend and I have this preference set, so I am a bit surprised that his files were not being updated. Am I misunderstanding this? At any rate, the Update DNG Previews & Metadata command seems to work. Thanks for all the suggestions and help. Regards, Lou Dina

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