GretagMacbeth
Eye-One Photo
by Alan Clifton
(AlanC)
Nikonian in the UK
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INTRODUCTION
If
you wish to ensure that the colour in images from a digital
camera or scanner will be displayed correctly on your computer
monitor and output correctly to your printer then you need
accurate colour profiles for these devices to allow translation
between the "working space" (such as sRGB or AdobeRGB) of
the image data and the actual colour space of the device.
Monitors and printers usually come with standard profiles
developed by the manufacturer, but these are just a starting
point: the colour produced by monitors can vary significantly
unit to unit, will drift with time, and the controls allow
for radical alteration of their behaviour; printers are less
variable, but differences between batches of ink and paper
can lead to inconsistencies. In addition you may wish to use
third party papers in your printer, a situation that can leave
you trying to find the best match among the standard profiles
supplied by the manufacturer.
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GretagMacbeth Eye-One Pro spectrophotometer
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One
good answer to these issues is to have the ability to profile
devices yourself, since this allows you to regularly recalibrate
your monitor to compensate for any drift and to generate profiles
for the exact combination of inks and papers that you use
in your printer. There are an increasing number of colour
management products on the market from a variety of manufacturers
that provide facilities ranging from simple, automated calibration
of CRT monitors through to highly accurate profiling of professional
quality printers, complete with the ability to manually adjust
the resulting profiles – something that requires an in-depth
understanding of the principles involved.
GretagMacbeth
is a well established company in the area of colour management,
offering a wide range of hardware and software solutions.
The company has recently revised their line of Eye-One products,
offering a series of new packages at highly competitive prices.
One of these packages, and the subject of this review, is
the Eye-One Photo. This system is aimed specifically at photographers,
providing the ability to profile CRT or LCD monitors and RGB
printers, together with subsidiary abilities such as the direct
measurement of colour or ambient light, and optional upgrades
to allow profiling of scanners, digital projectors and CMYK
printers.
One
of the main attractions of the Eye-One Photo package is that
it’s based on GretagMacbeth's Eye-One Pro spectrophotometer.
This instrument has the ability to measure emitted or reflected
output so it can be used to profile both monitors and printers.
When used to measure printed output it features the added
advantage of a "scanning mode": rather than having to manually
position the device over each of the 288 (or 918, depending
on your choice of target) colour patches on a test target,
you simply run the Eye-One along each row in turn, making
the profiling process far quicker and much less laborious.
There
are two versions of the Eye-One Photo available: the standard
version costs approximately $1500 / €1430 / £1170 (inc. VAT);
the UV cut version is approximately $250 / €220 / £155 more.
The only difference between the two is in the Eye-One Pro
spectrophotometer itself: the UV cut version incorporates
a UV filter to prevent problems when measuring pigments that
fluoresce under UV light or papers that incorporate artificial
whiteners that do the same. You need to make the choice of
which version you require at the time of purchase since you
can’t retro-fit the UV filter to a standard Eye-One Pro. |