APERTURE

Aperture is a measurement of the lens open so that the light can enter the sensor of the camera. The aperture is usually marked by the f/number.

Let’s look at our camera, the aperture look like f/2.8, f /4, f/5.6; etc. The larger aperture will be marked by the smaller f/number and the smaller aperture will be larger the f/number. For example f/2.8 is much larger aperture than f /18.

Aperture is strongly related to Depth of Field, the larger the f/number (e. f/22) will ensure that from the foreground to the horizon is relatively in focus. Conversely the smaller the f/number (e. f/2.8), the more narrow the space of focus, this will cause the effect of blur on the background of the image.

Aperture settings can be adjusted due to the image that we want to get. I usually use a large f/number (f/22) for landscape photos to produce a focus image from the foreground to the horizon. And I will set a small f/number (e. f/2.8) if I want to shot an image with a specific focus point. Aperture setting this limited and depends on the lens that we use. There are lenses that can tolerate up to f/number such f/1.4 or there is only f/3.5 and up.

This images that will shown below will make it more clear about aperture explanation. I'll show some pictures that I took with different aperture settings and taken with my Nikon D200 and Nikon Fix Lens 50mm 1:1.8. With this lens I can make arrangements with the opening up to f/1.8.

Let’s look together!

f/1.8

(You can see the blur background)

 f/2.8

 f/5.6

f8

f18

 

f22

 (see the same focus between foreground and background)

Okay! You could see the difference now. That's all that I could explain about Aperture.

You can try it! Thank You.