Aperture and Depth of Field

So as a beginning photographer the connection between Aperture is Depth of Field isn't always taken into account. As a beginner we mainly think Aperture only effects how much light is let into the lens. I'm going to show you a few photos i took in my home with a static-ish camera never changing focus, only changing Aperture and bumping lighting as needed. For these shots I started at an aperture of f/1.4 and went up to f/16 as that's the range of my Nikkor 50mm f/1.4.

Before I show the photos i want to explain Aperture just a little more to give a better understand of it and how it works.

The aperture of a lens is how wide it opens to let light in. Aperture can range from (on average) f/1.2 to f/32 depending upon the lens. The lower the number the wider the aperture [ f/1.2 > f/3.5] And also the the lower the number the faster. Now when the Aperture is wide open is drastically narrows the field of focus. This happens because of how the images enters the lens and is distorted by the wideness of it[ see this picture taken from wiki for a visual]

Shot at F/1.4 Yoshi is clearly in focus or within Depth of Field. While Mario and the bottle of water are outside of the range of focus



















When shot t f/2.8 Mario is still out of focus but you can see he is coming closer to focus with this photo.
















f


Here at a wide open f/16 Yoshi, Mario, The Bottle, and all of my sensor dust can be seen.



















During all of these photos which can be seen here the camera was never moved, focus was never changed, and the subjects where never moved. The only thing changed was the aperture of the lens. I think my next photo guide blog will be on shutter speed and action. See you guys when i get back from Seattle...if I ever make there.