depends on how detailed you want it. for me, the bigger the better. I cant say exact canvas sizes, but easily in the 3k's.

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The heart has its reasons of which reason knows nothing. -Pascal

Innocence is not the prescence of good, but the absence of evil.

hello, i think 2384 x 3152 is quite big, especially for me, the art program might hang very long ...
i normally will use around 1800x1300 ... unless someone request for higher resolution.

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Wow, I only use 1600 X 1200.

I've a long way to go.

It all depends on the project. Whether it's something meant to be small, like a wallpaper for your desktop or a print that's going to be put on a canvas and framed. I work on an image as large as I want it to be, so I can make smaller copies if necessary. Once you make it, you can't go bigger without losing quality.
How big the file is also has an affect on whether your computer can handle it or not, as you've come to find out. I've worked on files that were as big as 2gb and took over a half hour to save.

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