Slow shutter speed

Both of these photos have been taken with slow shutter speed which gives off an unusual effect on the photo its self.

Shutter speed is measured in seconds, mostly in fractions of seconds.

This waterfall has obviously been taken with quite a slow shutter speed because of how much of a 'blur' effect is on the water and all the splashing of the water coming off it, which almost looks like smoke. This shows that it has been slowed down quite a lot to capture the 'blur' effect which a lot of people do when taking photos of waterfalls to look like this one.

 This photo also has obviously been taken in a very slow shutter speed, as in the photo you can see that because the bridge is a still object it is completely clear as is all the water because there is no movement in there either. As for the sky, the clouds are moving constantly so the majority of them also have the 'blur' effect. The blur starts from where the clouds was when he first took the photo and because of the slow shutter speed the camera has caught them moving across the sky to make the photo have the same unusual effect and make it look more interesting.

Fast shutter speed

This photo has been taken with fast shutter speed, which leaves a very detailed effect on the photo of the bubble.  You can tell this has been taken with fast shutter speed because when the girl has gone to touch the bubble to pop it, as soon as her finger has hit it the photographer has captured it in a split second. Therefore the photo shows us half of the bubble just looks normal because all of it hasn't popped yet but the first half which her finger is touching you can see every last bit of detail, every bit of movement which happens as she pops the bubble with her finger. Obviously people use this effect to catch every single bit of movement in detail for a fast moving scene.  

This photo also has been taken with fast shutter speed, which would be a good idea if wanting to capture a fast moving animal.    This animal is obviously running at a very high speed, in this picture the background is all blurred and all the focus is on the animal. The fast shutter speed has abled the photographer to catch the animal in movement without a single bit of blur on the focus of the picture. 

Shallow depth of field  

Shallow depth of field is when your only focusing on one thing in the picture usually up close to the front of the photo. The object or person you are concentrating and focusing on will be in focus at the front and everything else will have a 'blur' effect on it. 

Deep depth of field 

Large depth of field is when the background is more concentrated than the up closer to the camera view. With this photo you can see that round the sides and across the bottom has got the 'blur' effect on it where as behind that all the background is focused and concentrated on so is more clear for you to see.