The
name of tti appears wherever people write about top quality reprographic
stands for holding
large format scan back systems.
These are large format digital cameras such
as PhaseOne,
BetterLight,
Jobo, Anagramm, and comparable. The difference is that with the
tti system these scan backs are mounted
on a repro-camera system as a copy stand.
If
you attempt to perch your large format camera on a tripod and photograph
your flat work on a wall, you have all kinds of problems.
- First,
how can you be sure you are directly in front of the art on the
wall (if not, you get distortion and one side of your image is
out of focus).
- Second
problem is how can you affix your valuable image to the wall.
You don't want staple holes in your image.
With
the tti+digital scan back your camera is always precisely
above the object. Both are parallel to each other (this is why you
don't want some rinky dink copy stand).
Be sure to avoid the $500 copy stands, they are insecure.
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Parrot Digigraphic copy stand
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FLAAR
is interested in an overhead scanning system for several purposes.
First, we wish to photograph all the polychrome 8th century ceramic
plates in the Popol Vuh Museum. If you attempt to use a camera on
a tripod you have to tilt the plates against a wall...the plates
tend to slide (after all, they are round). Or the plates simply
roll off the photo table (and crash to the floor). Second, with
the plate tilted against the wall there is never anyway to assure
the plate is parallel to the film plane. I have been Jerry-rigging
photographs like this for years, and I can come rather close, but
the tti repro stand is the only way to do perfectly-parallel
photography of these plates.
The
third reason why FLAAR is interested is to record the collection
of indigenous textiles in Guatemala. The weaving is elaborately
decorated. Most flatbed scanners can't handle deep relief well (the
Fuji
and Heidelberg
Linoscan equipment being a pleasant exception). But even scanners
that can capture deep relief and even 3-D objects, its hard to light
them when the object (in this case the textile) is covering the
top of the scanner.
Basically
every museum needs a reprographic stand scan-back system.
Even when you don't have Maya plates or textiles your museum will
surely have many objects that can better be recorded with an overhead
system than with either a flatbed or a tripod-based camera system.
Of course large museums will need one of each. At the Popol Vuh
Museum we already have flatbed scanners (courtesy of Heidelberg)
and already have tripod-based camera systems (courtesy of most of
the tripod and camera manufacturers). But so far the repro stands
that are sold by most camera stores are too flimsy. Thus it was
a relief to see the tti repro stand system. You can use it with
PhaseOne, BetterLight, Jobo, or any of the scan backs. We
happen to prefer BetterLight but all these scan backs are
of professional quality.
For
more information about the tti repro stand/copy stand, consult Parrot
Digigraphic, e-mail jlorusso@parrotcolor.com.
FLAAR
does not have a tti stand but a Cruse system is being installed
this August. The difference is that the Cruse is a dedicated turnkey
reprographic system and has synchron lighting. Because the
synchron lighting is patented, no other reprographic system
offers it. The Cruse
system is pictured on www.fineArtGicleePrinters.org
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FLAAR offers for you more information about this subject |
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