iphone 16e camera images are 72 dpi

Cameras do not have a DPI (Dots Per Inch) or PPI (Pixel Per Inch) ability. Camera and the digital files they produce have a resolution. Resolution is measured number of pixels across by number of pixels high. Multiply height by width and you’ll have the Megapixel of the camera/sensor (digital file).

My iPhone 16 PM 1X 24mm lens has a resolution of approximately 8000 x 6000 or 48 megapixels.

Screen you display the digital files on are comprised of pixels and have a finite size. The size of the 16 PM screen is approximately 2868 x 1320 or about 3.8 megapixel. In inches it’s 6.42” x 3.06”. Now divide 2868 by 6.42 and you’ll get the PPI or about 446 PPI.

DPI is a printing term referencing the number of ink drops (dots) per inch required to trick the human eye into perceiving a continuous tone print.

Your turn to offer some explanations. What are you trying to print, send digital files or what exactly? Where are you seeing the 72 DPI measurement?

72 PPI is a figure you might commonly see in a photo editing application.

I think it probably traces its origins back beyond the first Mac to the Xerox Alto – whose screen had 72 PPI.

To the extent that photo editing applications pay attention to it at all, it is just a hint as to how big to display a photo on the screen, relative to the size of the screen, or relative to a graphical "ruler". When you go to print, that's going to be fitting the number of pixels in the image to the physical dimensions of the printing area.

There, a rule of thumb is that you want enough pixels in the image, relative to the size of the print area, to have 300 PPI. Often, if you're printing for yourself (not for some commercial client), you can get away with somewhat less. If you are making very large poster-size prints, you may also be able to get away with a lot less than 300 PPI because people will usually be viewing those prints from a much greater distance than a 4x6" or 8x10" one.

Yes, early VGA monitors were around 72 PPI. Because of the popularity of PC’s that became a fixture until digital photography caused issues with high resolution images trying to be displayed on low resolution VGA screens consumers refused to give up.

Today, most software and GPU’s work together to display images at much higher resolution than 72 PPI.

The resolution of human eye is around 300 DPI when an 8” x 10” is viewed at about 1.5 to 2 times (about arms length) the diagonal of the print . However, visual acuity declines with age. When the eye finishes maturing some individuals see closer to 400 DPI, but by 40 most individuals are 300 DPI or lower.

Future readers might learn from the additional posts.

If I understood the challenge you’re facing, I might be able to assist. But the resolution/DPI is adjusted in software. Usually adjusted when exporting or saving a file. Cropping a file also changes the resolution.

Ive taught to a number of commercial printers and graphic artists and designers when I lived in Cincinnati.

Refer to this --> iPhone 16e - Technical Specifications

I was a certified Photoshop and Lightroom instructor. I’m mostly retired, but have taught this stuff for decades. If you have specific questions, I’m happy to answer them.