Here's what causes a smartphone camera's photos to come out blurry

Here's what causes a smartphone camera's photos to come out blurry
Smartphone cameras have evolved tremendously over the years, as we've said countless times. That's why point-and-shoot cameras are closer to their state of obsolescence than they've ever been. The cams on our phones aren't perfect, however. Even a top-performing cameraphone like the Galaxy S6 or the iPhone 6 may fail, and nobody likes it when their shots come out blurry.

But what causes blurry photos, anyway? Well, a dirty lens may be the culprit – the glass covering your phone's camera comes in contact with your fingers more often than you think. That's why cleaning your camera before taking photos is a good idea - wipe it with a piece of soft cloth to remove smudge build-ups.

Blurry images could also be caused by your phone's camera failing to focus properly. This might happen when you're taking close-ups against a distant background – the camera might prioritize the background instead of focusing on your subject. Thankfully, we have tap to focus supported by pretty much every modern phone's camera. Use it to aid your camera in focusing at the right spot.

Thirdly, low-light photos may be affected by blur if the user's hands are not perfectly steady while holding the phone. Even the press of the shutter may cause blur if one's not being careful. You see, a photo is not captured instantly. The camera's image sensor has to be exposed to light for a certain period of time, and in low-light situations, this period could be as long as a quarter of a second, if not more. Any movement that occurs during this brief moment will produce some amount of blurring in the image. That's why cameras featuring optical image stabilization are much more effective in such scenarios. OIS won't help if your subject itself is moving, however.

Alright, now you know what causes blurry images and how to minimize the chance of such ever occurring! Take a look at the gallery below for examples.

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8 Comments

1. frankg

Posts: 173; Member since: May 14, 2014

Ohw Really........

5. tdslam720

Posts: 70; Member since: Jan 05, 2015

And here I thought I was actually going to learn something inside of generating ad revnue

6. sgtdisturbed47

Posts: 969; Member since: Feb 02, 2012

There's a technical explanation that gives more detail. The lens determines how much light reaches the sensor, the sensor sensitivity (ISO) determines how much of that light is going to be turned into digital info, the electronic shutter determines how long the sensor is turned on to capture that light, and the image processing determines how the image taken will look upon review. The wider the aperture of the lens, the more light is brought to the sensor. f/2 lets in twice the amount of light as f/2.8, so the lower the f-stop the better. The wider the aperture, and the more light available, the quicker the shutter will be without causing blur. Using plenty of light ensures no blur.

2. SupermanayrB

Posts: 1188; Member since: Mar 20, 2012

Hopefully this will be helpful to someone.

3. joevsyou

Posts: 1093; Member since: Feb 28, 2015

who was expecting not the so obviously answers and maybe a few tips?

4. chocowii

Posts: 478; Member since: Jan 30, 2014

Yes! Crappy editorials!

7. ian018

Posts: 1; Member since: Mar 30, 2015

i think cameras are like human eyes they can only focus at one point the surrounding areas will get blurr

8. An.Awesome.Guy

Posts: 636; Member since: Jan 12, 2015

Well,I know most people already know these stuff ,but for who don't know I will add Use sport mode when there is someone on movement or when you are inside a car.(not on driving seat) And to reduce you hand shaking effect use a timer (whatever it is called on your camera app) because when you press the shutter button (physical or on-screen) your phone will shake further more.

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