RE: Apple ADC24 uniformity test
RE: Apple ADC24 uniformity test
- Subject: RE: Apple ADC24 uniformity test
- From: Roger <email@hidden>
- Date: Fri, 04 Dec 2009 22:31:09 -0500
I don't dare open my loud mouth not to damage any company's reputation. All
I'm saying is there are some very expensive monitors on the market that
don't last a lifetime in normal usage and when the time comes to replace
them, after they go from 140 to 120 to 100 to 74 cd/m2, in 3700 hours of
usage, the replacement better not cost the same price as the original,
otherwise it does not make sense to buy such expensive monitors in the first
place.
Does anyone know what luminance level is covered on ACD24 warranty?
Roger
BTW, I had to put a 2475w on my desk today and, calibrated with good
software and instrument, it does not evoke the appearance of neutrality like
the ACD24...
>
> Nice job, Peter, nice software too. (Calcheck / Veripress, I guess?)
>
> I think the debate over the 600 vs. 2000 USD displays is just
> pointless. Of course, my wife could transport the toddlers to the
> kindergarten with a Geo Metro, but honestly, it's more safe if she does
> it with a Volvo. The emphasis is on 'safe'. If anyone makes a living
> judging color day by day on a computer screen, he/she will not argue
> that a high-end hardware calibrated display with uniformity correction
> is a must.
>
> My friend working next door got his shipment from HP some days ago. I
> just couldn't persuade him to invest in a high-end display, and finally
> he bought a HP 2475w. At first sight, the LG IPS panel looked nice,
> there was only one little flaw on the whole display area (it's not a
> pixel failure, but some tiny rubbish on the diffuser between the panel
> and the backlight). After the initial joy evaporated, my friend started
> telling me that he could see a 'verlauf' (gradient) of colors across
> the screen from green to magenta. I calibrated the display for him, and
> after that I took some measurements around the whole panel area.
>
> I don't want to tire you with the measurement data, but the left side
> was a* negative, the right side a*positive, with more than 10 delta E's
> of difference between them.
>
> Now I think this is pretty unacceptable for color-critical work. Okay,
> you can always place the graphics to the center 'sweet spot', but spare
> the price of a Big Mac per day, and you could have a real high-end
> display with perfect uniformity on your desk. I think I would choose
> the slim silhouette... :))
>
> Regards,
>
> Peter Nagy _______________________________________________
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