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Re: [OM] question for Doctor Monitor, if he exists

Subject: Re: [OM] question for Doctor Monitor, if he exists
From: "C.H.Ling" <ch_photo@xxxxxxxxxxxxx>
Date: Thu, 13 Aug 2009 11:27:07 +0800
The LCD panel is just like image sensor in camera, they can share the same 
sensor but with very different performance like Panasonic and Olympus.

C.H.Ling

----- Original Message ----- 
From: "Sue Pearce"

This brings up a question that I've never heard answered. When someone
refers to  a monitor as having an Acme panel, does that mean JUST that or
does Ezio or LaCie or whoever just get their name silkscreened on the very
same monitor as the Acme?

Can't there be a substantial difference in electronics, just as there is a
difference in cameras that use the same Sony or Panasonic chip?

Bill Pearce
----- Original Message ----- 
From: "C.H.Ling" <ch_photo@xxxxxxxxxxxxx>
To: "Olympus Camera Discussion" <olympus@xxxxxxxxxxxxxxxxx>
Sent: Wednesday, August 12, 2009 8:13 PM
Subject: Re: [OM] question for Doctor Monitor, if he exists


The link for panel search is interesting, my EIZO has a Samsung PVA (I knew
it has a Samsung panel before), the key is not only the panel, it is the
whole circuit count. I'm not very critical on monitor requirement, as long
as all color gamma are accurate and I can resolve all 255 grey block that is
ok (I'm still missing the darkest 2-3).

On the other hand the panel do account for the contrast ratio, my EIZO
claimed 1000:1 and I measured it to be around 510:1, to my eyes the dark is
deep enough and the bright can hurt.

There are sharpness adjustment on some monitors, my EIZO does not have one
but my Samsung is over sharpened by default so I have to set it to neutral.
The Apple monitor you have seen may be adjusted to a high sharpen level due
to someone's preference.

C.H.Ling

----- Original Message ----- 
From: "Fernando Gonzalez Gentile"

Very good link, Chuck,

I cannot agree with him on his reasoning:
"From a purely theoretical standpoint, I leaned toward contrast ratio
rather than color because I shoot mostly nature photography, and there’s
usually a significant range of acceptable color in this genre: Who can
say what /exact/ color that fall foliage, for example, really was? The
area in which color accuracy is most critical (except possibly for some
scientific work) is skin tones. The human visual system very sensitive
to variations in skin tone and people find inaccuracies in this area
particularly annoying. If I were a portrait shooter I might favor IPS."

I don't know the _exact_ color of the foliage in the photograph I
recently posted, at the amount of exactitude Lord Kelvin would have
wished to achieve. But - I have the outdated Velvia 50 as my starting
point. I know the sand is more red than it should in that frame because
I watch at it twice a week under different lighting conditions
(statistics here ... ) since many years ago. But I don't care, since my
goal is to have in the monitor what I see in the trans illuminated
Velvia. Then, I'm trapped in the trans illumination accuracy problem,
but with the help of Carlos I can at least work this around ( ... that's
why I was reading Lord Kelvin words yesterday, and yes there's even more
I don't know that I hadn't realized before. It's never ending, and I
find it funny).

OTOH, last week I walked up to my friends at the Apple Store. Loaded
some of my 16bit .tiff in their best iMac, set white at 6500, gamma at
2.2 just in case, and opened CS3 loaded with my usual color management
settings: Europe Prepress 2. Wow, I'm sure those iMac are not VA, but
the accutance of that monitor scared me. I didn't like it. I loaded
.tiff which I knew I had oversharpened and I swear I could see the 'hard
clip' really hard; I loaded a .tiff I knew I hadn't, but accutance was
still too high. Fortunately, color matched well enough.

So, despite I'd never know the exact mµ of that particular leaf of
autumn foliage or cactus at that very moment, my starting point is the
film I got - not the scene.
Then, I'd choose an IPS type.
But Samsung seems to be VA, that's exactly why the author chose it ... :-(

<http://www.tftcentral.co.uk/panelsearch.htm> didn't work for me either,
but when clicking <http://www.flatpanels.dk/panels.php> you do go
somewhere around .... .

Thank you.

Fernando.



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