Get Acquainted with The Diaphragm (Aperture)

 

The diaphragm is one of the things that can make a dimensional photos. Thanks to diaphragm, magical photographs can be produced.

For simplicity, the diaphragm of the lens aperture is a measure of when the photos were taken.

The Openings? Yes, there is a hole in the diaphragm within the lens. The hole where this light we can adjust the amount. If the hole is getting bigger then the incoming light will be more and more, as well as vice versa.

small diaphragm (f/22) © wiranurmansyah

Don't be surprised if these numbers look at f/2.8, f/4, f/5.6, f/8, f/11, f/16, f/22 and so on. These are numbers that represent the high or low diaphragm.

To remember is f/2.8 is larger than f/16. Moving from f/2.8 to f/4 will reduce light one f-stop. The diaphragm in the sequence above is a standard sequence of highlights in one f-stop.

Often confusing newbies are numerical values that are as small as f/2.8 turns out is great openings (where incoming light more). Remember, the f/2.8 aperture is large and f/22 is the small openings. It may sound strange, but eventually we'll get used to it.

The diaphragm and the depths of space (Depth of Field)

f/2.8

The diaphragm determines the dimensions of our pictures. Rather is setting the depth of space or Depth of field (DOF). The diaphragm will affect directly to the DOF.

Large diaphragm (f/2.8) will be made increasingly thin DOF, the diaphragm is often used for portrait photography. Because it can isolate objects with background. If you see a photo portrait with the background blur, then it is certain the photographer using a diaphragm.

f/22

Another case with landscape photography, photographers need a wide DOF. From the object nearest to the camera up to a distance as much as possible focus. This is the time we are using a small diaphragm (f/22). We can also apply the principle of the hyperfocal distance, which will be discussed at the next post.

To understand more about the diaphragm, the main thing to do is to experiment on their own. Use the diaphragm creatively, you might want to try photographing landscape with f/1.8? No problem!

I hope a little introduction about diaphragms can be beneficial. Don't forget to read my friend from the diaphragm shutter speed and iso.