Thứ Sáu, Tháng Hai 7, 2025
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Why should you use digital zoom to take beautiful photos with your phone?

Zooming your phone camera can reduce image quality, but this may be a worthwhile trade-off.

How does digital zoom affect photos?

Digital zoom is known to be a destructive process because it erases data from the entire image, as opposed to optical zoom, in which the lens magnifies instead of erasing parts of the image captured by the sensor. Essentially, digital zoom is cropping, but before you take the photo.

When digitally zooming, you are left with fewer pixels across the entire image. Let's say you have a 1200×600 image, if you zoom in 2x, you'll be left with a 600×300 image. It's a pretty low resolution image. However, most phones today have much higher resolutions.

Why should you use digital zoom?

At 1200×600, you won't want to zoom in with just 720,000 pixels. However, modern smartphone cameras already have pretty good cameras.

There are some key features to look out for in a smartphone camera, such as having at least a 12MP sensor that produces images with 12,000,000 pixels- giving you more to work with.

Even a cheap phone like the Redmi Note 11 that only costs a few million dong can still take photos in 12MP mode and has a 50MP mode, enough resolution to zoom in without losing too much quality on the camera. most platforms you post photos on. The images below are a comparison between zoomed and unzoomed modes. You may notice a drop in quality if you look closely on a large screen, but not from a phone or after compression on social media.

Compare zoom and non-zoom modes
Compare zoom and non-zoom modes

Why should you care about zoom mode on your phone? Here's a quick proof: Compare two identical images and it's clear that the magnified image has more depth, more focus, and less distraction.

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Zooming is like using a longer lens on a camera. Phones often have wide focal lengths, which can make faces appear large or have strange proportions. It's nothing like the fisheye effect, but sometimes it doesn't look good.

Having your subject further away and zooming in will effectively narrow the field of view, creating a more natural look that's closer to the way our eyes see things. But what's more important: All those pixels or how good the image looks as a whole?

How to use digital zoom to take beautiful photos with your phone

Before you zoom in to take every photo, here are some tips you should keep in mind to get the most out of your zoom.

1. Step back and zoom to take portrait photos

Standing too close to your subject's face often makes their face look large and elongated. Instead of getting close, take a step back and zoom the camera.

Compare cat portrait zoom
Compare cat portrait zoom

The left of the image above is a 1x zoom getting closer to the cat's face, while the right is a slightly farther zoom. Features farther from the center will appear elongated in 1x zoom, like the cat's arms at the bottom of the image and his ears looking elongated at the top.

2. Zoom in to make the photo less cluttered

Getting close to the subject will result in warped edges since phone lenses are often wide; while stepping back will result in a loss of focus on the frame. This is especially true for product photos and busy environments.

Images are less cluttered when zoomed
Images are less cluttered when zoomed

Take this keyboard for example; The surrounding environment is very messy. On the right, it is zoomed in for better focus. It also makes objects straighter with less warped edges.

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3. Zoom in to make the background stand out more

Longer focal lengths tend to make distant objects appear closer and larger. Take a look at the two images below; objects are the same distance in both images, but the zoomed in image on the right causes the farther object to take up more space in the image. This phenomenon is often called “compression”, but it is simply an effect of a narrow field of view.

There are many other ways to take advantage of the zoom feature on smartphone cameras. In most cases, the loss in quality is barely noticeable. Some phones even have optical zoom, like the Samsung Galaxy S24+ with 3x optical zoom, so you don't lose any quality. Feel free to zoom in and take the photos you've always wanted!

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