Out-of-focus images

The following article offers you a short overview of the possible causes for out-of-focus images. More information about the individual problems can be found in the articles in the respective subject areas. These are essentially the main causes of out-of-focus images:

  • Improper focusing
  • Camera shaking/blurring
  • Motion blurring
  • Dirty lens or filter
  • Quality of lens / Images captured with the widest diaphragm
  • Technical defect


After blurring, an incorrect focus is the main cause of out-of-focus images. It is mentioned briefly below. For a more in-depth explanation on this topic, see Technical Basics – Focus.

Read more: Focus


The “blurring” of an image is one of the main causes for blurred images.

Read more: Blurring

Motion Blurring

Motion blurring is another type of shutter speed-dependent image blurring. Here the moving object is blurred in the image despite exact focusing. The cause for this, in relation to shutter speed, is the object’s speed of movement.

Read more: Motion Blurring

Further Causes for Blurred Images

Besides the causes that have already been mentioned, lens quality, dirty lenses or technical defects can influence an image’s sharpness.

Read more: Further Causes for Blurred Images

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