Newbie trying to produce b&w halftones.

D
Posted By
DavidF
Jun 7, 2005
Views
232
Replies
1
Status
Closed
I am trying to produce halftone images, (black and white, no colour) from digital photographs, suitable for including in our village magasine. I have Photoshop 7 and Cannon iP4000 inkjet printer. We occasionally use professionally produced halftones, but these are too expensive to use as often as we would like.
I currently prepare ‘camera ready’ pages of text, and this is printed by off-set litho by a guy who clearly knows his stuff, but who operates out of his shed with limited equipment. He requires images to be 100 lpi, with 45 degree lines. I thought that I could do this direct from Photoshop, using the Pint-with-Preview/Show More Options/Screen command, but this clearly is not so, although I don’t really understand why. I also tried Filter/Pixellate/Colour Halftone, but could not get a good image with the minimum dot size of 4 pixels. I have researched this on-line, and seen many articles which have left me confused. It seems that there are programmes available for achieving halftones, but the software seems to be expensive and over technical (ie lot of effort in giving good colour).
Is there a cheap solution to my problem e.g a plug-in filter for Photoshop, or a simple, limited performance bit of software? Two other queries. What is RIP. Is my printer Postscript compatible?

(Please do not be offended if I do not respond to replies immediately, as I am away until 15 June)

Regards, DavidF

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RC
rob circus
Jun 9, 2005
Try Print with preview, then change the "color management" pull-down t "output" and click "screen" unclick the "Use Printers default screen checkbox and set the "Frequency" to 100 Lines per inch for which eve ink color the elllipse shape is usually the best option for the do shape but check with your printer. the angles usually are 45 degree for black, 75 degrees for magenta, 90 degrees for yellow and 10 degrees for cyan. but if its only B&W you should only need the blac ink if my explanation doesn’t make sense you can email me a and i’ll try to help mor


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