What are the basics of photography?

There are three things you need to know to understand photography. Once you understand these three basic elements and how they relate to each other, you will be limited only by your own creativity and willingness to practice. These are:

• Aperture: If you look into a DSLR lens, you will see a set of blades through which a aperture is made in the center for light to pass through. That hole is a aperture and the lens can make the aperture smaller or larger by moving that blade. The bigger the aperture, the more light will go through, it is obvious. Aperture control of your camera is another way to change how much light the sensor receives. The size of the aperture controls how many images appear in focus behind and in front of what you are focusing on. This effect is Department-of-Field (DoF). When the background becomes too obscure as we move beyond the subject, we call it a "shallow" depth of field. If most of the picture appears to be in near-distant focus, we call it "deep" instead.

• Shutter Speed: The shutter is a door to illuminate the light-proof box in which the sensor resides. Shutter speed is the period when the shutter is open and, as you would expect, the longer it opens, the more light it can reach the sensor. Simply put, you can control the speed of your subject.

• ISO: If you've ever bought a film roll, you may remember that you had a variety of choices. In most stores, you can buy 100, 200 and 400 speed films, and in a good camera shop, you can buy much more. These figures are the ISO rating of the film, sometimes called Film-Speed ​​(or before 1990, it was called ASA). With film, the higher the number (e.g. 400, 800, 1600), the more sensitive the film will be to light, so it can be used in dark environments. The lower the number (e.g., 50, 100, 200), the less sensitive they are to light, making them more suitable for use in bright daylight. So why don't people just shoot ISO 1600 movies all the time? Unfortunately, the high-speed film was also more granular and had less color. This phenomenon is called "digital noise".

Exposure - Working together: To get a better grasp of how these three elements work together to create a photograph, a analogy can be useful. Think of it this way: Photography is like filling a bucket with water from a tube. If you fill the bucket but it does not overflow, we can say that we have the right exposure. n Photography, getting the right exposure means getting the right amount of light sensor for ISO setting, creating a picture that is not too bright or too dark.

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Pillars of Photography

Basics of photography (Part -3)...

"As most of us live in a world of democracy, this means that almost every country has its own democracy. Democracy now operates on its four pillars (legislature, executive, judiciary, media), just as photography operates on three pillars (hole, hole, shutter-speed, ISO). Now, as a photographer, it's your job to master these three basics, because photography works on these three basics."

(NOTE: If you are new to this blog, then before reading this article, do check the previous articles.)

In the previous articles of this series, we have discussed the following things, do check them out :

• Types of Photography...
• Composition in Photography...

So, let's discuss the three main pillars of photography in detail, they are as follows: 

1) APERTURE :

The hole is the most important column than the other two because it adds different dimensions to your images by focusing on the subject and obscuring the background or foreground, the first thing being. Another thing is that it can bring the whole image into focus. So basically it controls the depth of field.

Now, depth of field is nothing but how much image is in focus is the depth of field of that image. Now consider that a hole is a hole made in a lens that controls the amount of light entering the camera. The bigger the whole, the more light is entering. Small means full, low access.

Now, how is this hole expressed? Hence it is expressed in terms of 'f-stops or f-numbers'. F-stops are numbers that tell you the full diameter. 'Small means hole, big means whole and big means hole, small means whole'. If you increase the F-stops, it means you are reducing the hole (diameter of the hole) and vice versa.

2) SHUTTER SPEED :

Now, what is the first shutter? So imagine that your eyelid is the camera sensor and your eyelid is the shutter of your eye. So when your camera doesn't fly, your camera shutter is closed so that no light can come in and apply to the camera sensor. Exactly what happens when you press the shutter button, your shutter opens so the light comes in and hits the camera sensor and after the sensor enters the light and captures all the details, the shutter closes and the image is captured.

Now, shutter speed is how long the shutter is opened to collect information through the light. So by adjusting the shutter speed, you are basically adjusting how long your shutter will open.

Now how is this shutter speed expressed? So it is expressed in seconds, mostly in seconds. Such as - 10sec, 5sec, 1sec, etc; in seconds and 1 / 2sec, 1 / 100sec, 1 / 1000sec, etc. Now, what is 1/100sec, which means 1/100th of a second. '1/10 seconds <10 seconds'.

3) ISO :

ISO is a very important pillar of photography, as it will control the quality of your image. But now what does this ISO mean? ISO is nothing but the sensitivity of your camera's image sensor.

Now what does this sensitivity mean? Sensitivity basically controls the amount of light required. For example, if the sensitivity of the sensor is low, the amount of light required is high and if the sensitivity of the sensor is high, the amount of light required is low. And this sensitivity is controlled by ISO.

Now how is this ISO expressed / represented? In our cameras, it is basically represented by numbers. Such as - 100, 200, 400, 800, etc. So now ISO is the complete opposite of the hole, here as you increase the number you increase the ISO (sensitivity) and the amount of light required is less. As you reduce the number, you are reducing the ISO (sensitivity) and the amount of light required will be higher.

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