>I would have thought that it would depend mostly on the hardware with which >they will be projected - particularly the pixel dimensions.
I can't really add much to the colour management discussion that hasn't been said already but I agree with Dick that the hardware will need to be considered. To the best of my knowledge, there are about four different native resolutions: SVGA (800x600), XGA (1024x768), SXGA (1280x1024), UXGA (1600x1200). Most in my experience are SVGA because this is adequate for PowerPoint vector slides and in most cases clients go for 'PowerPoint fitness for purpose' and not all value hi-res. You really need to match your output to the native resolution of the device and while most are capable of signal conversion, up scaling from 800x600 to XGA or greater res will obviously produce soft images. Projector brightness/lumens are another issue to consider, especially if it's a tired old thing and of course you have the viewing conditions of the room as well. Most have manual contrast controls to deal with this with the brighter models having the benefit of much higher contrast ratios so you can always make final corrections on the hardware. Never underestimate the client who thinks cream walls are an adequate projection surface either. :-) Hth Alex P.S. - Apologies to the list for my accidental all list post to Listmum the other day, especially digest 'digers. =============================================================== GO TO http://www.prodig.org for ~ GUIDELINES ~ un/SUBSCRIBING ~ ITEMS for SALE
