I've wondered about an industry standard for a while as wel with registerl... I remember doing some reading about a given registration standard years ago, although our plant here decided not to incorporate a hard rule. I think it is hard to hold register to a standard like a lot of the industry does with ΔE or ΔH since some pictures will look fine with a register more than, say .007" out of line, while sharper more contrasting photographs will show it with possibly even less.
Did a search there and found nothing. Also there's nothing about misregistration in the SWOP, SNAP, or GRACoL that I could find. Other than for proofs - which must be in perfect register.
According to "medien standard druck"in Germany (Fogra, BvdM).
is the tolerance half of the screening.
example:
with a screen 60L/cm the tolerance is 83 µ.
1cm/60=0.01666cm x 0,5 = 0.0083 cm = 83 µ
According to "medien standard druck"in Germany (Fogra, BvdM).
is the tolerance half of the screening.
example:
with a screen 60L/cm the tolerance is 83 µ.
1cm/60=0.01666cm x 0,5 = 0.0083 cm = 83 µ
Interesting. That works out to 0.0033" and that is the distance of one half row of dots. One half row of dots is what I was alway told was the tolerance and it is enough to take a rosette from clear-centered to dot centered.
I wonder why such basic information is missing from the N. American standards and specifications?