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Artist => General Art Discussions => Topic started by: whitewater on November 04, 2011, 02:22:25 PM

Title: halftone % quaestion
Post by: whitewater on November 04, 2011, 02:22:25 PM
I do artwork seps for my father in law. I can do halftones with the normal 22.5 and whatever else i have it set at.

My question is the previous artists he worked with just said tell them the  percentages, like 10% and 20% for example and whola! they halftones it to what he wanted..

I'm not awesome at this but what does that mean? and how do I go about doing that?

hopefully someone understands what I am talking about.

Thanks

Rob
Title: Re: halftone % quaestion
Post by: mk162 on November 04, 2011, 02:28:10 PM
what format is the art in?  halftones are a percentage of color, so the 10% or 20% is the percentage he wants of that color.  Does he do his own films?
Title: Re: halftone % quaestion
Post by: myseps on November 04, 2011, 02:45:53 PM
in channels, select the area you want to be a halftone.

Using levels, drag the "output levels" bar to the right

you can see the percentage in the info pallet
Title: Re: halftone % quaestion
Post by: Dottonedan on November 04, 2011, 04:14:36 PM
Scott's examples are on target if using Photoshop.  What program are you using?
Title: Re: halftone % quaestion
Post by: 3Deep on November 04, 2011, 05:13:33 PM
While on this can I ask a question here...everyone is using 22.5 angle on all plates I,ve used it allso, but for some reason I did a set of films, I forget if was a black plate or whitebase plate with halftones and the 22.5 would not work.  It was morie city, so I change that plate angle to 56 and it work just fine, have any of you every had this problem using all plates at 22.5?

Darryl
Title: Re: halftone % quaestion
Post by: squeezee on November 04, 2011, 09:06:07 PM
Depends on your mesh size & tension, sometimes it just happens.
Title: Re: halftone % quaestion
Post by: whitewater on November 04, 2011, 10:16:08 PM
thanks guys...He sends me crappy jpegs. LOL

I use photoshop and illy.. To tell the truth when he burns a screen he can't get real fine halftones. Its just not what he does.

What I did in the past for him was just change the artwork into gray scale then brighten it and change the angles on the halftones.

Thenk you for showing me the %..

I use mostly illy and have a ways to go in photoshop.

Rob
Title: Re: halftone % quaestion
Post by: stiggy on December 01, 2011, 05:37:55 PM
If your screen mesh is at 90degrees to the frame 22.5 will work fine, also have been using 37 for C,,82 for M,  7 for Y and 52 for K for years for process and have never had any problems with Murry, Morry, or their brother Moire. lol