Need to know of Screening

[sureshdhami]

Dear Friends,

I need to know that how many kinds of Screening there in the offset field ?

Can any one send the detail of the Screening it will be a great help.


Regards
Suresh Dhami

[color_matters]

you can find almost everything you need to know below

Quality In Print

by Gordon Pritchard

[chevalier]

There are two main types Halftone (AM Screening) and Stochastic (FM screening) but under these two general umbrellas there are many subsets - a hybrid system also exists. Gordo's blog covers most of it if not nearly all of it.

It is important to know that each vendor has slight differences in their approaches (dot shapes, angles, dot size, algorithms and formulas). Esko's Concentric halftone screening and Heidelberg's* Megadot screening are two examples of proprietary screening technologies only available from those particular vendors.

Heidelberg's Introduction To Screening Technology Book I have found this book (a printed version can be purchased through Heidelberg) extremely useful in the past with educating people on offset screening.

[gordo]

Esko's Concentric halftone screening and Heidelberg's Megadot screening are two examples of proprietary screening technologies only available from those particular vendors.

Just a small clarification. Megadot screening is/was licensed by Heidelberg from Megadot Systems Limited Wellington, NZ. I'm not sure that the company is still in business though. The Megadot patent expired in 2005.

best, gordo

[chevalier]

Good to know! Thanks for correcting me.

[skymaster]

Dear Gordo
Thanks for information