Types of Blur

Motion blur can be created in the field by photographing
a subject/object that's moving quickly.

It's about time the Digital Traveler had a conversation about blur.

There's three types of blur:

1. Lens Blur
2. Motion Blur
3. Gaussian Blur

All can be made in Photoshop. While Photoshop does a good job in making blur, getting blur though your lens in the field is better.

And if you want to clear up blur, check this out.