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When I look at the properties of a JPEG shot on my Canon 5D MkIII (set to the highest quality settings on the camera), i've noticed that the 'Horizontal/Vertical Resolution is 72 DPI'
My only previous knowledge of DPI comes from printers/scanners where standard scanners/print are set at approx 300 DPI for general day-to-day things and super high quality scans or prints are done in 600 DPI.
Since i have 22MP worth of image to use, i'm a bit confused as to what the image DPI means and how it relates to printing DPI (If it does at all). Can anyone clarify what Horizontal and Vertical DPI resolution means?