Photo scans at different DPIs compared

The difference between 300 DPI, 600 DPI, and 1200 DPI scans lies in the image's resolution and detail. DPI stands for "dots per inch," and a higher DPI means more dots are used to create the image, resulting in a finer, more detailed picture. This is particularly useful for enlarging images without losing clarity. However, the effectiveness of a high DPI scan also depends on the output device's capabilities, as not all printers or screens can display the increased detail that comes with higher DPI settings.

So here are an examples of several photos scanned at 300 DPI, 600 DPI and 1200 DPI.

Feel free to download and view on your computer. Remember at anytime you can right click an image and save as...

300 DPI example - screen width 300 pixels

Setting an image's width to 300 pixels does indeed instruct the browser to display it at that specific width, regardless of the image's original size. This is a common practice in web design to ensure that images fit well within the layout of a webpage. When an image is scaled down to a smaller width, it helps to maintain the visual harmony of the site, especially on devices with different screen sizes. However, it's important to consider the quality of the image, as scaling can sometimes affect the resolution and clarity.

300 DPI - 1919 x 1272 pixels - physical photo size 192mm x 3856mm. Mega pixel calculation = 1919 x 1272 = 2440968 pixels = 2.440968 megapixels

Photo scanned at 300 DPI width 300 pixels

600 DPI example - screen width 300 pixels

600 DPI - 3848 x 2547 pixels - physical photo size 192mm x 3856mm. Mega pixel calculation = 3848 x 2547 = 9800856 pixels = 9.800856 megapixels

Photo scanned at 600 DPI width 300 pixels

1200 DPI example - screen width 300 pixels

1200 DPI - 6700 x 4568 pixels - physical photo size 192mm x 3856mm. Mega pixel calculation = 6700 x 4568 = 9800856 pixels = 30.605600 megapixels

Examples on screen at FULL size

In these examples we use the same images (as above), but we have allowed the browser to display them full size, the 300px width requirement is removed. Now as you can see the images probably (depends on your screen size) go off the page. Most monitors are displaying at 96 DPI which means for the 300 DPI image it will be approximately 19 inches wide, thats 1919/96 = 19.98 inches.

300 DPI example image - showing full size

600 DPI example image - showing full size

1200 DPI example image - showing full size

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