Moire pattern on final product

Started by zacgil, September 10, 2014, 11:41:22 AM

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Joe

Quote from: zacgil on October 28, 2014, 02:24:48 PMSo, we have another Comic Book coming through the shop with a big Halftone image on the front.  I've linked the Post-Trap/Ink Optimized PDF.   The question is, is there anyway I can tell how it will come off the press?  I've read through the rest of the comments and understand how it can be fixed on the design side of things, but is there a process I can put the file through that will accurately show how it will be screened on plate?  Or, is it doomed and I should tell the customer that he will most likely have a big, ugly moire on his cover?

https://www.dropbox.com/s/9fw2sbu9p1jo3ho/Halftone_Cover.pdf?dl=0


This.
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DigitalCrapShoveler

I can send you a composite 1 bit tiff. What resolution do you print at?
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zacgil

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Farabomb

Even with that you can't be 100% sure. When I had the one recently you couldn't see it in the VPS, only on the plate or in the ECRM preview.
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DigitalCrapShoveler

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DigitalCrapShoveler

Quote from: Farabomb on October 28, 2014, 02:39:28 PMEven with that you can't be 100% sure. When I had the one recently you couldn't see it in the VPS, only on the plate or in the ECRM preview.

With that file? You can be 100% sure. Trust me. ;D
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zacgil

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DigitalCrapShoveler

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David

I see the same moire on the ripped files as I do on the monitor pre-rip.
I think most of the moire is coming from the actual file.
How was the "ben-day" screening applied?
In photoshop? what angles did they use when doing this?
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zacgil

Quote from: DigitalCrapShoveler on October 28, 2014, 02:53:07 PM
Quote from: zacgil on October 28, 2014, 02:52:31 PM2400, my bad

Is the file you put on Dropbox THE actual output file?

- It is, only the front cover but yes it's post everything besides RIP.
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DigitalCrapShoveler

Good point, Dave. I'm thinking, if the dots are larger that 150 DPI, it may NOT moiré. I've done this kind of thing before. It depends on a few things like angles, what the original LPI and DPI were when it was printed originally.
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zacgil

Quote from: david on October 28, 2014, 02:54:35 PMI see the same moire on the ripped files as I do on the monitor pre-rip.
I think most of the moire is coming from the actual file.
How was the "ben-day" screening applied?
In photoshop? what angles did they use when doing this?
I not privy on any of the design information.  but I do believe it was designed to have a moire-type pattern in it.
I am a punky, sophisticated lesbian (or something similar).

Joe

Quote from: zacgil on October 28, 2014, 02:58:24 PM
Quote from: david on October 28, 2014, 02:54:35 PMI see the same moire on the ripped files as I do on the monitor pre-rip.
I think most of the moire is coming from the actual file.
How was the "ben-day" screening applied?
In photoshop? what angles did they use when doing this?
I not privy on any of the design information.  but I do believe it was designed to have a moire-type pattern in it.

I think they will be successful then. ;D
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zacgil

Quote from: Joe on October 28, 2014, 03:00:08 PM
Quote from: zacgil on October 28, 2014, 02:58:24 PM
Quote from: david on October 28, 2014, 02:54:35 PMI see the same moire on the ripped files as I do on the monitor pre-rip.
I think most of the moire is coming from the actual file.
How was the "ben-day" screening applied?
In photoshop? what angles did they use when doing this?
I not privy on any of the design information.  but I do believe it was designed to have a moire-type pattern in it.

I think they will be successful then. ;D

yes I believe they will be, whether it's the intentional moire or not.
I am a punky, sophisticated lesbian (or something similar).

DigitalCrapShoveler

I actually think this will print okay.

Here is a blown-up version of the dots... like I mentioned., the dots from the art are being reproduced by the smaller dots of the resolution.

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