Thanks both of you for your replies. Yes, archdruid I had noticed that about Photoshop and the 72 ppi. In Poser I input sizes to render like I have said above ie 8x8" @300 (2400x2448) and had noticed how photoshop puts the rendered image as 33x34" @72. ( Tiari, actually my 2400x2448 renders don't take forever, maybe 2 hours tops tho I never use reflections ((the one time I did the render took 17 hours, aaaccck, toooo long !! )) and often only have shadows on for one light. One of the things I do in Poser is develop and render out characters and then paint costumes on them for film and theatre designers who don't have drawing skills and for that I have to do 8x10 prints at at least 250 dpi... so I am very aware of the importance of working on large enough images in Photoshop to get good detail in and sharp prints out ! The "Walking With Cavemen" illustration on the E-On website gallery is an example of what I do tho that is kinda old now. However my main query is really that both of those image dimensions contain 2400x2448 total pixels so in terms of pixels they are the same size. I'm not saying above that ppi/dpi doesn't matter at all ever but that it only really comes into play when an image is being actually printed out. For on-screen viewing it is the total number of pixels in an image that makes it clear to view, or if not enough, jaggies instead. This is what I thought I understood from reading various web pages on the subject. On screen res itself has more to do with total number of pixels and dpi is important when actually printing as it relates to the dimensions of the printout and its sharpness. Don't worry, I'm not trying to start a big debate.... I just wanted confirmation that my understanding of dpi in terms of printing and total pixel numbers via the formula I mention above is correct. That is 2400x2448 pixels will do a 33x34 print out at 72dpi, but it also will do a 8x8.16 print at 300dpi. Or not. thanks again.

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