It's also annoying when you have a motorbike and it's hard to find the right angle and composition, but when you look at it the results are blurry. Let's discuss what usually causes blur...
1. Shutter speed is not fast enough
It is important for you to remember not to use a shutter speed slower than 1/ focal length. For example, if you are using a 50mm lens, you should use a shutter speed of 1/60 or faster. Moreover, if you shoot with a 200mm telephoto lens, at least use a shutter speed of 1/250 because telephoto lenses are more prone to blur.
2. Pay attention to the subject's movement
For still subjects and still photographers, you can use method number 1 above. But if the object being photographed moves, the photographer also moves, we'll discuss how tomorrow.
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3. Shoot wide open
If you use a 50mm f/1.8 lens, you should not use the largest aperture lens because when used at the largest aperture, the lens has weaknesses in producing super sharp photos. You can lower it a little, for example when using an f/1.8 lens you can use an aperture of f/2 or f/2.8. If you want your photos to be sharp at f/1.8 aperture, you can use an f/1.2 lens and so on.
4. High ISO
High ISO usually causes noise in photos. When you force yourself to use a high ISO, your photos will look less sharp because of the noise.
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5. Light quality
Photos that look sharp are also influenced by the quality of light and the right contrast. There are dark and bright lights. You can try taking photos with flat light conditions and less contrast, then your photos will look less sharp. Even though technically it might look sharp, visually it could be less sharp.