The Ollie
 lvl.4
Flight distance : 140187 ft
Germany
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It's such a shame that so many people don't understand what DPI means.
I'll try to explain it:
A sensor has a certain resolution, e.g. 8064x6048 pixels.Anyone who wants to calculate the resolution of the sensor is welcome to do so, because these pixels are arranged on the 1/1.3-inch CMOS sensor.
If the image is saved as a file, a DPI (Dots per inch) value is stored in the metadata (EXIF). However, this is just a value and has nothing to do with the pixels that the sensor recorded.
I only need a DPI value when I want to print or develop the image. Let's assume we want to use a good print quality of 300 dpi (E.g. on photo paper), this means that the printer prints 300 pixels on 1 inch. The image has 8064x6048 pixels, so at a resolution of 300 dpi it will be 26.88 x 20.16 inches (68.3 x 51.2 cm).
Canvas with stretcher frames are printed at 120 dpi, which means that the same image will be printed 171 x 128 cm.
Computer monitors usually have a resolution of 96 dpi. As a result, the monitor would have to be 213 x 160 cm in size if we wanted to display the image at 100%. Since our monitors are smaller, we have to scroll :-)
I hope this has all become a little clearer now.
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