DPI and Image ResolutionUpdated a year ago

Navigating DPI (Dots Per Inch) can be challenging when deciding how to export your file or select a print size. The key to understanding DPI lies in aligning it with the resolution captured by your camera.

DPI varies depending on the image's pixel count (a fixed value determined by the camera) and the desired print size in inches (a variable). Choosing a smaller print size means the image's fixed pixels are concentrated over a lesser area, resulting in a higher pixel density per inch and, theoretically, a sharper image. Conversely, opting for a larger print size spreads these pixels over a wider area, reducing the pixel density per inch. Therefore, to achieve a high DPI, select a print size that matches your image's resolution.

The number of pixels in an image, set by the camera, represents all the visual information available. No additional data extends beyond this pixel count.

For instance, a 24MP camera generates an image roughly 6000x4000 pixels in size. To obtain a 300DPI print from this, you'd choose a size around 12x18 inches or smaller, maintaining over 300 pixels per inch across the print. While large print sizes are available and often yield excellent results, achieving 300DPI is not always necessary for a clear print under normal viewing conditions. The 300DPI standard is aimed at achieving ultra-sharp clarity for close-up viewing. However, for wall-mounted prints viewed from a standard distance, a density of about 150DPI can still look impressive. A 24MP image at around 150DPI can produce clear prints in larger sizes such as 24x36 inches without compromising quality.

While the industry often touts 300DPI as the gold standard for print quality, exceptional clarity can still be achieved with DPI values below 300. If your aim is a 300DPI print, the solution lies in selecting an appropriate print size rather than increasing the file's resolution.