Understanding APERTURE (with Examples) In-Details

APERTURE

In the EXPOSURE TRIANGLE the last element and the most vital one is the APERTURE, for the beginners this might sound a bit confusion but if you use is correctly in your photos, then you can capture mind blowing pictures through it; So in this Blog we are going to know the following thing,

1. What is Aperture?

2. Use & Adjustments of Aperture.

3. Some values for different types of situations.

4. Things to be kept in mind before adjusting your Aperture.

 

But before that, 

IF YOU DIDN'T READ OUR OLD BLOGS ON SHUTTER SPEED AND ISO THEN IT'S HIGHLY RECOMMENDED TO READ THOSE IF YOU DON'T HAVE AN PROPER IDEA ABOUT THIS THINGS, LINKS ARE GIVEN BELOW GO CLICK AND CHECK THOSE..

>>https://myexposure00.blogspot.com/2020/09/understanding-shutter-speed-with.html

(Understanding Shutter Speed (with Examples) In-Details)

 

>>https://myexposure00.blogspot.com/2020/09/understanding-iso-with-examples-in.html

(Understanding ISO (with Examples) In-Details)

 Now, let us Get Back to our First question, 

 

What is Aperture?

 We know that in front of every lens there is a Shutter which controls the duration of light before hitting the Sensor Board, but apart from shutter speed there is another gate through which the amount of light is controlled, i.e. known as Aperture.

 So we have came to know about the Aperture, now let us understand how to Use it.

Use & Adjustment of Aperture.

 First of all let us know about the use of Aperture::

USE: 

The main thing which the Aperture do is controlling the Depth of Field or in other word it controls the Bokeh effect. Now, you might have a question in your mind, I've said before that it control the Amount of Light and now telling that it controls the Depth of Fields, so whats does it really do?

Let us know the relation between Depth of Field and Amount of light with Examples::

Example 1::

In the given (below), the aperture is f/2.5, you can observe that the background is too blurred and the subject is in small area, so the Depth of Field (AREA IN FOCUSED) is LESS in this case.

 

Example 2::  

 

 In the given (below), the aperture is f/11, you can observe that the full image is in focus
so the Depth of Field (AREA IN FOCUSED) is MORE in this case.

 

 

 

 So from the two examples we conclude that,

APERTURE           DEPTH OF FIELD         BLURRINESS 

     high                                less                             more         

     less                                more                             less          

ADJUSTMENT::

Now we know what are the uses of the Aperture, now let us learn how to Adjust its value,

Aperture is measured in f-stops, e.g. :: f/1.2, f/2.5, f/8, etc.

 

F-STOPS          APERTURE OPENING        BLURRINESS  

low(f/1.2)                        wide                                more          

high(f/8)                        narrow                               less           

Some values for different types of situations.

 

For Portraits ::

f/1.2 - f/4

For Landscape & Cityscape

f/8 - f/11

For Street Photography

f/8

For Light Star

f/14 - f/16

Things to be kept in mind before adjusting your Aperture.

 

While adjusting the Aperture look at the LCD screen instead of the viewfinder.