Hello People, Social Mela is presenting a photography course which is for everyone who wishes to learn the art of photography be it:-
- An amateur photographer, who knows the basics.
- Job seeker, who wish to make his CV look impressive.
- Traveler, who is on a journey to explore the world and capture those moments, or
- A commoner with a smartphone.
In this previous post, we started with very basic stuff such as the very word Photography, Light, Camera Lens, Types of Light, and Working of the camera.
In this post, we will talk about Exposure.
In our world the master source of light is the sun, that reflects upon objects around and then we have a camera that captures this light, the light enters in the camera through the lens.
There are three basic functions that a camera has that helps us control light so that we get a proper exposure.
Proper exposure – A photo in which there isn’t too much of light or photo isn’t too dark.
Image source – www.photoinsomnia.com
Aperture is also called IRIS or F-Stop, which is the diameter of the hole inside the lens, bigger the hole more the light enters the camera and vice versa. A big hole means a brighter image than a smaller one. The confusing thing here is that smaller the F-stop number it represents the larger diameter of the lens aperture.
For e.g. going from f1.4 to f/2 decreases the size of the aperture, therefore, it allows less light to enter the camera.
Image source – www.lifehacker.com
so if there is a lot of light outside then you have to decrease the size of the aperture which is actually increasing the F-Stop number.
2) Shutter Speed
Image source –www.bhphotovideo.com
The camera has a shutter that opens and closes to allow light to enter camera’s body. Faster it opens and closes lesser the light comes in. For a camera, even 1 sec seems to be a long duration, but for me and you it’s a quite insignificant duration of time. For a camera in that duration, a lot of light enters into it which may destroy the image.
Shutter speed can go up to 1000 of a second and at these fast speed allows us to capture moving objects, such as running athlete, or a hummingbird. So if there is too much of light outside you might have to increase the shutter speed and if there is dark outside you might consider slowing down your shutter speed.
Image source – www.shuttermuse.com
ISO is basically the sensitivity of the camera’s sensor – (a digital wonder that captures light and turns it into the photo). Higher the ISO it means the sensor is more sensitive to the light and makes a brighter photo. The negative side of raising your ISO when it gets dark is the photograph comes with the grain so higher your ISO the more grain your photo will contain. Depending upon camera you will be able to raise the ISO without getting grain.
Image source – www.exposureguide.com
The art of photography is to balance these three functions:-
Image source – www.ourfifthhouse.com
So learning photography is basically diving deep into these functions. Hope now you understand a little bit more about your camera and how to use manual functions to get a perfect exposure.
Thank you! Signing off
-Team Social Mela