Setting the plate type
SpectroPlate will carry out optimized image calculations depending on the type of
offset printing plate used.Therefore the type of printing plate has to be selected. Also
for measurements on film or printed paper the right setting has to be made first.
This setting is to be used for the check-up measure-
ments on the Fogra Measuring Bar FMB only.
Should the exact type of printing plate not be listed,
then select here the type which describes best.
Measurements on paper:
Geometric dot percentage measurements on paper are
only useful for a few specific applications. The geometric
dot percentage measured precisely by SpectroPlate is
not comparable to the dot percentage value based on
the Murray-Davies formula measured with a densito-
meter. Please note that the standards for measurements
on printed paper describe the use of densitometers and
spectrophotometers.
Film measurement reflection:
Simply place the film on a white backing and perform
the measurement. For gradations higher than 80 % we
recommend the measurement on film in transmission
mode.
Film measurement transmission:
If a light table or light plate is available, this is the me-
thod of choice. Just place the film on the light table and
perform the measurement.
Select wether the plate
has positive or negative
processing properties. The
dot percentage value will
be shown as dot increase
or decrease accordingly.
Select the type of printing plate
you use.
Your plate is not in the list?
Please contact us! This list is
permanentely updated when new
plates appear on the market.
Plate type is shaded?
Upgrade to the All-Vision model!
See chapter 2.3 for details!
Manual TECHKON SpectroPlate Chapter 1 - How to use SpectroPlate
Page 15
