Hi all, Interesting discussion going on here... Much of this depends on several factors. First, the method of printing makes a huge difference as to what resolution you use when printing the final image. For example, in newsprint you generally use an 85 dot screen in reproduction. The general rule of thumb is to DOUBLE the lpi of the screen for your pixel resolution. So, for newspaper reproduction you should use a 170 pixel resolution for the working image file. Any more than this is wasted information and any less will start to cause a deterioration in overall image quality. Pixelization isn't the only thing effected by smaller file sizes. Depending on the process, tonality and gradation can also effected. The less information available, the more restricted these become. For magazines, you have a screen of 150 dpi resolution and should scan or adjust the pixel resolution to 300ppi in the working file. Dye sub prints don't require the same amount of resolution as offset printing and often times, you can get away with resolutions as low as 100-125ppi in the working file. Ink jets require a different equation as well and generally work best at 1/4 of the highest resolution (so, a 2400ppi resolution on an ink jet printer will be optimal at 600pixels per inch resolution in the file). I have seen many images made at lesser pixel resolutions, but if you're going for optimal resolution and image information, these are the standards. Hope all of you have a great weekend. Gonna go back and sit in my corner again... ;-) Cordially, Mark Lent
