G7 press calibration, best press conditions or average?
G7 press calibration, best press conditions or average?
- Subject: G7 press calibration, best press conditions or average?
- From: Paul Foerts <email@hidden>
- Date: Sat, 01 Nov 2008 23:01:24 +0100
On Fri, 31 Oct 2008 16:09:31 -0500 Steve Miller <email@hidden>
wrote:
> Paul,
>> A conventional offset printing press cannot be "calibrated". Presses are
>> "adjusted" by press operators.
> I used the words "press calibration" because that's what most people I've
> talked to call it. It's easier than saying "Using the G7 methodology to aim
> at an ISO standard printing condition".
>
> There's a trending software available and is described as follows...
> "A product that is designed to help printers save money in the pressroom by
> helping: Reduce the cost of calibrating a press to an ISO12647 based print
> specification."
> Then it goes on to say...
>
> "What does it do?
> Calibrate Press Gamut to ISO12647
> Assist press operators in calibrating their press to ISO12647 based print
> specifications. (FOGRA/GRACoL/SWOP)"
>
> Then there's IDEALink Curve software that's described as the following...
> "IDEALink Curve is your link to simple G7 implementation. Easily
> calibrate and verify all your systems without the tedium and uncertainty of
> manual curve drawing."
Yes this is what marketing does with existing technology...
If the technology isn't sexy enough, put some voodoo over it and it will
sell like "new" cakes!
G7 implementation = nothing else than "using the G7 methodology to aim at an
ISO standard printing condition"
G7 methodology = TV (tone value) adjustment using c-t-p curves (simplified
basic definition).
Nothing gets "calibrated". If others like to call adjustment or setting
"calibration", well, so be it. I suppose they'll agree to call all operators
"calibrators" too. :-))
Paul
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