So, for example, if you were using a 200mm lens, your shutter speed would need to be 1/200 of a second or more, whereas if you were shooting with a 50mm lens, shutter speeds of 1/50 of a second would suffice, although this also depends on whether you’re photographing a moving subject or not.
CHOOSING THE WRONG FOCUS POINT
Focusing on the wrong spot can also cause blurry photos, so it’s important to understand your camera’s focus modes. Although manual focus is great for some situations, it’s not necessarily the best option when you’re shooting fast action and need to track a moving subject.
Even when you’re not using manual focus, however, leaving everything up to the camera won’t always get you the best results. If you’re not sure what your camera is focusing on, half press the shutter button until you see a red focal point through the viewfinder. You can then use the dial to change focal points or simply move the camera until your subject is in the line of focus.
NOT SHOOTING IN HIGH ISO
Many new photographers have been told or read somewhere that they should be shooting with the lowest possible ISO to avoid digital noise in their photos.
But while it’s true that using a higher ISO setting can lead to more noise, it’s still a great way to get sharp images in low light while hand holding your camera. After all, it’s better to get some good photos with a bit of noise than it is to end up with a whole memory card of photos that are either blurry or underexposed.