Phone cameras in the last few years have improved immensely to handle low light and movement. However, they use software to compensate and correct for their limitations when they are physically limited by (1) lens size – which allows the amount of light through, (2) sensor size – which limits the light detected – so low light conditions are worse and (3) zoom – most phone have 3 lenses – wide (0.5x), normal (1x) and zoom (2x to 3x).
The software will compensate for zoom (usually digital zoom for anything greater than5x) which can be seen in the grain and noise of zoomed images, long exposure shots impose multiple images and taking the average of the images.
The comparison with DSLR may soon be obsolete with mirrorless cameras. They remove the “SLR” component which makes them (1) take more frames per second (5 to 20 fps), (2) quicker to focus and (3) more intelligent to monitor the photographer’s eye to locate where the subject is located.
The one area in which phones cannot beat cameras is lenses. A 5mm lens on a camera compared to a 72mm lens on a DSLR camera is a difference of 200x the area for light to go through. That is a huge difference.
Having said all of that, know the limitations of the camera on your phone or DSLR and use it wisely! 🙂
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