Shutter speed and motion blur

Have you wondered how people have photos of waterfalls that look smooth and give the illusion of motion or direction of flow? Maybe you are more concerned with why your wildlife photos aren't crisp, or why a baseball pitch looks blurry? It all comes down to shutter speed and motion blur. Shutter speed is given in increments of seconds, generally a whole 1 is 1 second and any fraction thereafter will be faster than a second (1, 1/250, 1/2000, 1/4000). I have some photos of birds to illustrate the general idea of what the difference in shutter speed might look like.

ISO 64 f2.8 1/160sec Nikkor 70-200 2.8GII

ISO 64 f2.8 1/160sec Nikkor 70-200 2.8GII

ISO 3200 f4.5 1/2000 sec Micro Nikkor 105mm 2.8G

ISO 3200 f4.5 1/2000 sec Micro Nikkor 105mm 2.8G

ISO 1000 f2.8 1/6400 sec Nikkor 70-200 2.8GII

ISO 1000 f2.8 1/6400 sec Nikkor 70-200 2.8GII

ISO 400 f2.8 1/8000 Nikkor 70-200 2.8GII

ISO 400 f2.8 1/8000 Nikkor 70-200 2.8GII

All of these were captured with the D810 - I have listed the lenses that were being used at the time. Please note that as shutter speed is adjusted, often the ISO is adjusted as well. This goes back to my first blog about the relationship between shutter speed, aperture and ISO. Camera settings also vary depending on how much sunlight is available at the time of the photo.

 

Let me know what you think in the comments section.

-Mitch