You invest a lot of money in a professional camera, lenses and equipment. You take courses and trainings to learn how to take the best photos. But it’s time to print your work (for a portfolio or project, for example) and the result is not. ” It is not worth all your investment. It may be wrong in the settings. But after all, how many megapixels does it take to print photos?
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- Does it depend on many factors? Including the camera type.
- But let’s start by understanding what megapixels are.
- Megapixels are a measure of quantity.
- But not all are the same.
- So an 8Mp mobile phone camera doesn’t take the same photos as an 8Mp DSLR camera.
Should we determine the number of megapixels of photos taken with your camera?The process is simple. Take a picture and upload it to your computer.Then, check the file data for the height and width Mp measurement.Multiply these measures, then divide by 1 million. The formula is:
FÓRMULA 01: (Altura Mp x Largura Mp) / 1.000.000
You’ve already found the number of megapixels in your standard photo.Now let’s see how many megapixels you need to print high-quality photos.High quality? Can it basically be understood as a density of 300ppi?300 pixels per inch.
Start by determining the size, in inches, at which you want to print the photos.For example, if you want to print standard 10-15 cm photos, you need 3.93 x 5.90 inches.Remember if:
1 inch – 2.54 centimetres
Now take this step in inches. Let’s calculate how many Mps it takes to print a photo to this extent in high quality, at 300ppi.The formula is:
FORMULA 02: (300 x height in) x (300 x width in)) / 1000,000
The result of this crazy formula is the minimum that your photo must have in Mp to be printed in high quality, that is, if the result of Formula 01 is less than the result of Formula 02, your photo will not have an excellent pixel.Density.
But it’s not over yet! There’s one last interesting trick worthwhile: sometimes you want to print photos without losing image quality, but you don’t know the maximum print size to preserve pixel density.Well, there’s a formula for that, too. This is about the opposite path to Formula 02.
FORMULA 03
(height in inches / 300)? Maximum height
(width in inches / 300)? maximum width
Remember that this result will, of course, come in inches, that is, you must multiply each by 2.54 to find the maximum size in centimeters.
Now you know how to print photos while preserving the quality of your work.Use these tips for your projects and you’ll see the difference!