Aperture

Aperture is a fundamental part of photography, and DSLR's. Your aperture determines how much light is let into the camera; the bigger the aperture number, the smaller the opening; the less light that comes in. The smaller the aperture number, the larger the opening; the more light that comes in. To get the shallow depth of field(or blurry backround) that can be seen in some images, you need to use a small aperture. What aperture you can use is determined by which lens you have. Kit lenses generally have a 3.5-5.6 aperture. What this means is that it's wides point the lowest aperture you can have is a 3.5 and at its greatest focal length the lowest aperture is a 5.6. Now to demonstrate this, I took a few test shots today at different apertures to show what the different apertures look like. Now note, the aperture can affect other things such as shutter speed and iso. I will tie in all the different elements in a future blog post.

Note how the background is blurry in the first image, and in the last image the entire image is in focus.

f3.5

f4.5

f5.6

f7.1

f9

f11

f14

f20

f22

Feel free to comment below or e-mail me if you have any questions. It can be frustrating to understand at first, but be patient and it will come to you.

Hope this helps
Cheers