: Optimal scanned resolution for final printing at 1 x 2,5 m We have a piece of artwork (~21 x 30 cm) originally scanned at 300 dpi Should we rescan it at another resolution if it is going
We have a piece of artwork (~21 x 30 cm) originally scanned at 300 dpi
Should we rescan it at another resolution if it is going to be printed on a poster of 1 x 2,5 m ?
Thanks in advance
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I dug a little deeper I really want to provide you with the most accurate answer. The Scan should be at 12000 x 29700 pixels. How did I come up with this number... Well I'll provide the math really simply and then if you really want to delve deep follow this link to All About Digital Photography.Take your final dimentions 1m x 2.5m
and the printer output of 300 ppi
I then convert your Meters to Inches
1m = 39.3701
2.5m = 98.4252
Then you calculate the pixel dimentions
40in * 300ppi = 12000 (I rounded up the inches)
99in * 300ppi = 29700 (I rounded up the inches)
The scan should be at 12000 x 29700 pixels for a resolution of 300 ppi.
I know this is a few days after our original comments. However, I knew that I needed to find some resources that could help me backup my math and explanation. Hope this helps.
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