Felix Brunner Items-

[danremaley]

I have attached several articles by Felix Brunner, they are valuable to anyone trying to understand Color Lithography.
You can contact me with any questions 412.889.7643 Dan.

 

[cityhunter731]

Hello Dan,
Greetings, Would gladly be appreciated if you could share the Felix Brunner ( Handbook of Print Reproduction) English version

 

[danremaley]

Sorry, I don't have that Brunner book. Contact me off line I have one that's better!

 

[Alois Senefelder]

Gentlemen and fellowLithograpers,

With great respect for Mr. Dan. Remaley also Felix Brunner and their many articles about "Grey Balance"

I suggest you read Gordos PrintBlog article entitled "Grey Balance Unbalanced-An inconvenient truth"


Regards, Alois

 

[danremaley]

Here's an item I wrote several years ago and the responses.
The standard deviation of a press is + or - 2%. That 4% variance in any particular color will show a cast but if you keep the colors in 'balance' the 4% variance becomes only a 'light' or 'dark' variance - this difference we can live with. (see PCReference).
Here's an idea I always wanted to try- take your 50-40-40 patch into Photoshop and set for Medium GCR - these new values can be placed in the color bar. Now the grey patch won't "change" until the standard deviation happens (+/- 2%)... Of course you need to apply same amount of GCR to the images & tint builds at rip level.
Attached is a pic of the ALL color readings on a X-rite 530. When the C-M-Y is within .03 of each other = Grey.
Certainly none of this matters printing a Red fire Truck or saturated pictures. . .but it won't hurt them either! I don't buy the "in line" argument - the separations have the correct size dots for a 'correctly' printed sheet - if not - go back to pre-press and adjust the dot size! You can't "color correct" at press you can only color ruin!!
I managed a color trade house in Pittsburgh making separations/proofs for printers.
All the best!
Article-1

The Little

The Little

whattheythink.com

Article-2

An Interview with Dan Remaley from PIA/GATF - Printing Impressions

Dan Remaley is a senior technical consultant at PIA/GATF specializing in process controls—the measurement of production standards to maintain a level of acceptable tolerances in the print manufacturing process. He helps printers install systems to minimize variation in proofs, plates, and...

www.piworld.com