March 2012 - colorsync-users

Re: Dell UltraSharp U2410 24-inch Monitor. Buying advice. Input or Comments
by Dennis Dunbar 12 Mar '12

12 Mar '12

I bought one of these in January and have been very impressed with it. The color gamut is very good (about 98% of Adobe RGB), it was very easy to calibrate and profile and has been great to work with. The only slight negative is that mine seems to need about 15 - 20 minutes to warm up before it looks right. Most of the other monitors I've had looked closer when first fired up in the morning, but after a few minutes this one looks ready to go. Though I wish my budget allowed for the cooler NECs or Eizos with a kid going off to college next year I gotta watch every $$ I spend, so this has been a very satisfactory compromise between budget and quality for me. HTH Dennis Dunbar Blog: http://www.dunbardigital.com/blog/blog.php Website: http://www.dunbardigital.com Twitter: http://twitter.com/DennisDunbar On Mar 12, 2012, at 12:00 PM, colorsync-users-request(a)lists.apple.com wrote: > We are looking to upgrade the dual monitor setup of our main > graphics work station. > Currently using a cheaper LCD Acer monitor as 2nd display. > The model we are thinking of is the Dell UltraSharp U2410. Something > not too expensive but still decent. > This station does the main color work here and has an Eizo as a main > monitor so this would be a complement to the main display. > Just was hoping for any input or comments on this display before we > purchase. (or any others in the same price range) > > Thank You. > God Bless. > Fr.Damian > Saint Nektarios Monastery > Roscoe, NY

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Dell UltraSharp U2410 24-inch Monitor. Buying advice. Input or Comments
by sngraphics 12 Mar '12

12 Mar '12

We are looking to upgrade the dual monitor setup of our main graphics work station. Currently using a cheaper LCD Acer monitor as 2nd display. The model we are thinking of is the Dell UltraSharp U2410. Something not too expensive but still decent. This station does the main color work here and has an Eizo as a main monitor so this would be a complement to the main display. Just was hoping for any input or comments on this display before we purchase. (or any others in the same price range) Thank You. God Bless. Fr.Damian Saint Nektarios Monastery Roscoe, NY

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Why is OS-X imposing a profile conversion of all greyscale images to "Generic Gray Gamma Profile 2.2"?
by Steve Kale 10 Mar '12

10 Mar '12

Why oh why? This seems to apply to both tagged images (embedded ICC profile) and untagged images. This is making a mess of anyone using a B&W RIP with image space to printer space gamut transformations managed either via tone curves or a kTRC tag within an ICC profile (created by fantastic little utilities such as QTR Create ICC). Of course it also screws up the printing of step wedges for printer response evaluation/profiling (just like the colour world has been thrown a curve ball by the inability to print untagged targets and having to resort to special utilities to do such a basic task).

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Re: Why is OS-X imposing a profile conversion of all greyscale images to "Generic Gray Gamma Profile 2.2"?
by Steve Kale 08 Mar '12

08 Mar '12

When I print a step wedge image either untagged (workspace Gray Gamma 2.2), converted to Dot Gain 20, converted to Gray Gamma 2.2 or converted "Generic Gray 2.2 Profile" with Epson ABW they all print the same L* values. If instead I assign Generic Gray Gamma 2.2 Profile (so the OS tranform doesn't shift K values) the output is very different. The developer of Quadtone RIP has also noticed that OS-X is making this conversion for any file destined for printing on his RIP. On 8 Mar 2012, at 20:00, colorsync-users-request(a)lists.apple.com wrote: > > > From: Doyle Yoder <doyle(a)dypinc.com> > Date: 8 March 2012 16:05:42 GMT > To: "'colorsync-users?lists.apple.com' List" <Colorsync-users(a)lists.apple.com> > Subject: Re: Why is OS-X imposing a profile conversion of all greyscale images to "Generic Gray Gamma Profile 2.2"? > > > This sounds like a printer driver issue to me. > > A true RIP would not be using a printer driver. > > In reference to PSCS5 no longer having the No Color Management settings, which seemed to have been a knee-jerk response to improperly written printer drivers at the time PSCS5 was being written. > > There are no profiles applied in the driver when printing B&W to Canon iPF printers so I don't see this as an OS problem. > > Doyle > > On Mar 8, 2012, at 9:48 AM, Steve Kale wrote: > > > From: Ernst Dinkla <E.Dinkla(a)onsneteindhoven.nl> > Date: 8 March 2012 17:22:20 GMT > To: Colorsync-users(a)lists.apple.com > Subject: Re: Why is OS-X imposing a profile conversion of all greyscale images to "Generic Gray Gamma Profile 2.2"? > Reply-To: E.Dinkla(a)onsneteindhoven.nl > > > On 03/08/2012 05:05 PM, Doyle Yoder wrote: > >> There are no profiles applied in the driver when printing B&W to Canon iPF printers so I don't see this as an OS problem. >> >> Doyle > > Is there no difference in the prints when you print the same B&W image with Gamma 1.8, Gamma 2.2, Dotgain 20, untagged, through that route? > > Not just ABW but other driver's B&W modes rely on the driver CM that usually expects sRGB or AdobeRGB or Gamma 2.2 assigned images. The HP recommended B&W workflow is "ABW" with driver CM on. > >

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