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Your camera records images that are X by Y pixels in dimension, where X.Y is about 22MP. You can look up the exact values on the Canon website under specifications. The size of the print is controlled by the resolution YOU choose to print at. For example, if you choose to print at Z pixels per inch, then the resulting print size will be (X/Z) by (Y/Z) inches. Conversely, if you want a print that is A by B inches in size, you would need to print at a resolution of (X/A) or (Y/B) pixels per inch. Obviously, the larger the value of Z, the smaller your print, and the higher the perceived quality of the print. For fine art prints, you would typically want to print at 300 or higher pixels per inch resolution, but depending on the image and the viewing distance, lower values of resolution may be acceptable as well.
The image itself, be it raw, jpeg or tiff, has no resolution or size in inches baked into it. The resolution only applies to the size of the image when you view it on an output device like a monitor or printer.
Edited on Jun 08, 2013 at 03:53 PM · View previous versions