What is a megapixel actually, and how does it correlate to the maximum resolution and picture quality?

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I’ve heard about megapixels being the amount of pixels in millions that a camera can take but I don’t understand how a Canon EOS R6 II can take better photos zoomed in than an iPhone 15 PM with optical zoom despite having a lower megapixel count.

I don’t get how a megapixel count correlates to the resolution, and how significant it is to the quality of the image.

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18 Answers

Anonymous 0 Comments

Megapixels basically is saying “how big your photo can be displayed without becoming all distorted (pixelated)”.
So, if you want to have a picture on a billboard (550 inches) more megapixels means less distortion when resized to such a “display”.
On a phone (7 inches), having more megapixels will not have much of a difference as it is such a relatively small device.

Thats why 240p videos look like they were filmed from a potato and even on a phone they look so distorted compared to higher resolutions.

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