Is there any way to pre-test for moiré pattern on the computer without having to make a bunch of screens and printing them? We have been having transparencies made and making screens - but it is tedious and time-consuming. We want to see what various screen frequency and screen angle combos look like on a particular mesh size. It seems there should be some way I could look at this on my computer to see what it would look like in a few minutes.
I want to simulate:
1. Frequency (LPI)
2. Screen Angle
3. Mesh count
Then I want to be able to quickly change these variables and see what moire develops - but right on my computer screen. Any ideas?
BOTTOM LINE: We want to print finely detailed images on glass and want the smoothest looking print with the tiniest, evenest dot print size as we transition from 100% image down to zero ("tint" I believe) - i.e. a dynamic image with smooth shading.
MOIRE - Computer Test LPI/screen Angle/Mesh BEFORE make scre
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I do not know of any way for checking moire on your computer screen. Every stretched screen I have come across is a little different. You may have perfect film seps printed out, but get different results from different screens of the same mesh. I would agree with printing out your film and holding it up to the screen you are going to use to check for possible moire.
If you find or come up with another way to battle the dreaded Moire! please share your info.
kros
Krosbone Graphix
If you find or come up with another way to battle the dreaded Moire! please share your info.
kros
Krosbone Graphix
Moire is a problem with the SCREEN!
You have the mesh pulled to tight in some areas....
I stopped stretching my own screens a few years back and I use www.MelRay.com frames.
The dot or ellipse can aid with moire reduction but I say pay closer attention to you screens
You have the mesh pulled to tight in some areas....
I stopped stretching my own screens a few years back and I use www.MelRay.com frames.
The dot or ellipse can aid with moire reduction but I say pay closer attention to you screens
.... I can give you my opinion but I can't tell you if it's right or not.
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Here is how I no longer have Moire
Eliptical Dot
Screen Mesh divided by 4.5 equals your frequency 230/4.5=51
22.5 degree angle
Never had Moire since I've used those combinations.
If you chose to print indexed color seps, you could theoretically eliminate moire, but you need more colors to make it look real good, like 8 to 9 colors. 6 is possible but a little more difficult.
Here is an image I did in Photoshop using Indexed colors to test it out. I could not get 6 colors but it looked pretty good in 9.
[/img]
Eliptical Dot
Screen Mesh divided by 4.5 equals your frequency 230/4.5=51
22.5 degree angle
Never had Moire since I've used those combinations.
If you chose to print indexed color seps, you could theoretically eliminate moire, but you need more colors to make it look real good, like 8 to 9 colors. 6 is possible but a little more difficult.
Here is an image I did in Photoshop using Indexed colors to test it out. I could not get 6 colors but it looked pretty good in 9.
[/img]