[Leica] Shiny Screen iMac Calibration Question

[mark at rabinergroup.com (Mark Rabiner)]

> Lluis - I was glad to hear you and Nathan were having good results with 
> these
> screens.  You gave me hope.
> 
> I needed to try something different so, after I got home from work this
> afternoon, I pulled the window shades down in my den where the iMac lives,
> pulled the computer forward so that my desk lamp was well behind the 
> screen,
> and went through the Apple manual calibration sequence meticulously.
> 
> After setting the screen brightness at a comfortable level, I adjusted the
> level and color tone sliders alternately (they interact) until the gray 
> apple
> disappeared into the striped background of each of the calibration screens
> completely.  I spent about three times as much time on this as I have 
> before.
> This gave me a nice neutral gray Lightroom surround when I was done.  That 
> was
> encouraging.  
> 
> I then looked at two test files I downloaded from the web, one from
> DigitalDog, the other from Inkjetart.  They both looked fine - neutral 
> grays,
> solid blacks and pure whites in the monochrome images and natural skin 
> tones
> and seemingly good color renditions in the color samples with no color 
> casts.
> 
> Recent images from you and Nathan looked the same, in fact, they looked 
> *very*
> good.   
> 
> So, I think it's done.  My Spyder is going back on the shelf.  I had not
> appreciated how good the internal calibrator is before.    You just need 
> to be
> *very* meticulous when you use it.
> 
> Thanks for your comments.  Now I can back to processing pictures.  Yes!  
> :-)
> 
> Regards, 
> 
> Dick
> 
> 
> 
> On Apr 05, 2010, at 6:30 PM, Lluis Ripoll Querol wrote:
> 
>> Hi Richard,
>> 
>> Nathan and me we have the same iMac shiny monitor as you, mine is 24" 
>> because
>> I don't know why but when I've compared the monitors on the shop it seems 
>> to
>> me that the 24" gave better resolution. I agree about darkening the room, 
>> but
>> I don't use the iMac calibration, I've made my own, but I'm not able to 
>> tell
>> you the adjustments I do...
>> 
>> I'm not an expert, for me the question would be if the pictures posted by
>> Nathan or by me seems correct to your eye. What I've do is correct the 
>> colors
>> or B&W tryng on real images
>> 
>> If some one answer your questions, this will be interesting for me too.
>> 
>> Saludos
>> Lluis
>> 
>> El 05/04/2010, a las 21:17, Richard Taylor escribi?:
>> 
>>> I now have new 20.5" shiny-screen iMac.  It's a great machine, but my
>>> attempts to calibrate it are coming to naught.  The glass panel seems to
>>> catch light from behind and screw up the calibration, yielding a result 
>>> in
>>> which what I assume should be a neutral grey surround in Lightroom has a
>>> distinctly greenish look.
>>> 
>>> My best results come from using the Spyder 3 sensor and software with the
>>> dock hidden, the screen fully shrouded, and the room darkened.  Color 
>>> Eyes,
>>> which seems more flexible and actually has an iMac profile, yields a even
>>> more-green result.
>>> 
>>> My brother, a retired TV engineer, says the problem sounds like it might 
>>> be
>>> due to the software calibrating gamma incorrectly, for at least the green
>>> channel.  His HP shiny screen monitor calibrates perfectly though, he 
>>> says,
>>> so maybe it's not the screen but some limitation in the iMac's video
>>> circuits?
>>> 
>>> In any case, I'm thinking I may have to get a second monitor with a matte
>>> screen, maybe an Eizo, but before I did that I'd like to hear other's
>>> opinions on this, particularly if you've found a way to calibrate these
>>> machines correctly.
>>> 
>>> Many thanks.
>>> 
>>> Regards,
>>> 
>>> Dick
>>> 
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> Leica Users Group.
>>> See http://leica-users.org/mailman/listinfo/lug for more information
How did your old jpegs and .psd's look?



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Mark William Rabiner