Re: Monitor Gamma Issue

["Howard Averbach" <haverbach@libcom.com>]

<x-charset iso-8859-1>Bruce Fraser wrote:

>Do you have any reason, besides these gamma targets, to believe that
your monitor, after calibration with the Spyder, has a gamma
significantly other than 2.2?  If not, I really wouldn't worry about it.

Yes, I believe there may be two such reasons:

1)  The "gamma-matching" function with my Umax MagicScan software seems to
indicate that I am nowhere near gamma 2.2, and

2)  Whereas my prints of the Photodisc and Fuji test images -- both are
downloaded images -- print with the proper light/dark balance (color is
another matter), images that began as scans into my system, although they
look fine onscreen in Photoshop (5.5), tend to print on my Epson 870 as
somewhat too dark and washed out.

Do you think there is a connection?

Thank you.

Howard


----- Original Message -----
From: "Bruce Fraser" <bfraser@amer.net>
To: <epson-inkjet@leben.com>
Sent: Friday, June 29, 2001 12:55 AM
Subject: Re: Monitor Gamma Issue


> At 1:27 PM -0400 6/28/01, Howard Averbach wrote:
> >Need Help on Monitor Gamma Issue:
> ><snip>
>
>
>
> >I am now to the point where the evidence suggests that I cannot set
> >my monitor for gamma 2.2, no matter what I try. Yes, I've used
> >Optical many times. I had a defective Spyder, but now have a new
> >one. A friend has sent me MANY onscreen gamma tests, and some of
> >them read (i.e., where certain color or gray areas best fade into
> >the background) gamma 1.7 to 1.8, whereas others read closer to 2.2.
>
> Visual targets that compare grays with checkerboards, or colors with
> checkerboards, are much less reliable methods for estimating gamma
> than the Monitor Spyder. In particular, they are both
> resolution-dependent and monitor-size dependent: the apparent gray
> level of the checkerboard varies dramatically when the pixels are
> larger or smaller, and densely-packed or widely-spread.
>
> Do you have any reason, besides these gamma targets, to believe that
> your monitor, after calibration with the Spyder, has a gamma
> significantly other than 2.2?
>
> If not, I really wouldn't worry about it.
>
> Bruce
> --
> bruce@pixelboyz.com
> -
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