Platesetter resolution

[Prepper]

We are in the process of setting up a new Screen PT-R 6600E and the question came up today of what resolution to use. They are setting it up at 2400 dpi and I needed to know if that is ok for our sheetfed work which we print at 175dpi and imaged film on a Herkules Pro at 2540 dpi. Seems like I remember reading somewhere that 175 is about as high as you should go with 2540 so is 2400 on the platesetter ok? This machine only goes up to 2540dpi so should we set it up for that then we could always go up if we wanted to? We are on the latest version of the Xitron Navigator rip and use HPS screening.

Thanks for any input,
Terry

 

[Jim-CompuDoc]

either 2400 or 2540 will work fine.

The latest navigator is 8.1, released this month. Major improvements, be sure they are giving you 8.1.

 

[KimSaks]

Resolution

Resolution

Any Screen PTR @ 2400 (which is really the optomized resolution) will produce exceptional screens 175 lpi and way above that if your PTR is set up properly.
If you have any other questions feel free to write me direct...
[email protected]

 

[gordo]

either 2400 or 2540 will work fine.

As long as you are not receiving prescreened image files (e.g. 1 bit tiffs from scanners or exported from other workflows) If you need to work with outside supplied screened files then you should set the resolution to match the resolution of the screened files.

best, gordon p

My print blog here: Quality In Print
Current topic: World's fastest stamper (video post)

 

[John W]

We use a Screen 8600Z. It allows for resolutions up to actual 4000dpi. We use 2400 for 150lpi and 175lpi, 2438 for 150lpi (legacy work redone), 4000 for stamp and credit card work (but the files must contain no strokes etc.
The difference bewteen 2400 and 2438 (or 2540) is nothing! These resolutions are evolved from previous film setters and dinosaur scanners such as Fuji sumo (2438 & 3657) and Lino (2540). The key is the rip's resolution and its optimization. The PT-R works well (if it has been set up for each rez) automatically for most all of the settings.
If I were to start over, I would use 2400dpi for everything except the finest of stamp work.
John W