Depth, well, it is one of the words that is analogous to many other things. While all the other secondary meanings of the word are related, the primary meaning would be ‘the distance between the top and bottom surfaces’. Even when it comes to a movie, the depth becomes a lot of things too. For suppose, the depth of a film can indicate the story going to deeper levels or the subject of the movie being deep. But we are particularly talking about the depth of field!

But technically, or to say, visually, depth or precisely depth of field is something that deals with focus. Depth of field is the field of vision that is in focus in a particular shot. Different camera lenses allow a certain depth of field. The aperture of a camera lens decides the amount of light that the sensor captures. Hard to understand, right? Let us break it down!

How does a camera function?

A camera is something that captures light through sensors. When you click the capture button, the light reflecting from the subject falls on the sensor. The shutter closes, and the captured light develops an image. Cameras are something that can control time with light. You can capture a moment of running time, and you can freeze that particular moment and hang it in your homes.


Aperture is the hole of the lens. The light that passes from the subject is passed through the aperture of lenses before hitting the sensor. You can adjust the size of the aperture, and it affects the photo differently. When the aperture (opening) of the camera is wide open, it lets in all the light coming from outside. When more light falls on the sensor, only the subject appears clearly, and the rest of the background becomes blurred.

Because of the vast light that is going in through large aperture, this blurring of the background happens. And the blur occurs because the background is not in the depth of field. Depth of field is the area of focus in an image or a video. By making the aperture wide open and letting in more light, you decrease the area of focus, and only the subject of the image appears clearly.

depth of field and aperture

Similarly, if you decrease the size of the aperture, the light hitting the sensor is reduced. By each point of decrease in the aperture, the area of focus begins to increase. And if you tighten the aperture to the largest and closest, you can observe that now even the background is clear and not blurry. This blurring and focusing of subject and background happen because of the light going in and hitting the sensor.

F – stop

Something much more critical and confusing here is that the values of changing the aperture are referred to as ‘f-stops’. If you change the f-stops, the aperture either increases or decreases as per your requirement. The f-stops are fractions and are measured as f/1.8, f/2.8 and may have greater f-stops till f/22 or even higher. The common mistake one can commit while talking or understanding f-stops are about how they impact aperture.

It is clear to use that if aperture (hole) is wider then it lets more light in and the depth of field (area of focus) decreases. And if the aperture is close and tight having a smallest possible opening, it only lets little light and the depth of field increases. The f-stops with smaller numbers indicate wider aperture and the ones with bigger numbers indicate tighter aperture.

f stops and depth of field

It is that, greater the number of f-stop, lesser the opening of the aperture. And lesser the number of f-stop, greater the opening of the aperture. So, if you want to take a picture focusing only the subject and blurring out the background, you should choose lesser f-stop number on camera as it means that you are widening your aperture and letting more light. Thus, decreasing the area of focus, i.e., depth of field!

depth of field cheat

Wrapping up!

We have discussed how the depth of field is created, shifted and used to take pictures or videos. In the following week, let’s get into the practical use and ways of depicting the depth of field. We shall also see different types of uses of the depth of field to tell stories visually.

I have been reading this book, nausea, for quite a long time. No matter how short this book is, don’t fall for the less number of pages, it is a lot of content that exhausts an average mind. When I began this book, I read 85 pages in a single go. But then, I didn’t dare touch it for two months. It is not that I didn’t want to open the book; there was never a moment that I didn’t think about it.

Everything I look reminds of “nausea”. The way Jean-Paul Satre wrote the book, he takes time to explain everything around the character. The character hits an existential crisis and begins to observe everything around him keenly. He begins to explain everything to us in a detailed manner. We are reading his journal, the pages left from his diary. His name is Antoine Roquentin, and his dairy explains all his thoughts and feelings about everything.

There is a page where Antoine explains how he felt anxious when he thought about his existence. He keeps reminding himself that he exists. And he keeps repeating “I think therefore I exist” in his mind numerous times and at the end, says, “I think therefore I am moustache” and loses it! He begins to question everything since he picks up a rock to skip it in a river; begins to question the essence of stone, and since then, he asks the nature of everything.

He begins to contemplate people, their actions, lifestyles; doesn’t see meaning in doing whatever it is. And he questions everything in a rather radical manner by drowning in absurd imaginations. Jean-Paul Sartre has carefully written the thoughts of Antoin in a way that while reading the pages that consist of anxious thoughts, we feel nervous too. I found myself observing everything in a more detailed manner and started describing things around me after reading 85 pages in a single go. I’m like Antoin too, and this book acted like the rock for him in his story.

Ever since I have read those pages, I became sensitive to smell. I began keen on observing the smells of everything. I even had a vomiting sensation, literal Nausea after sniffing certain smells. All the world is smells, visuals, audio, touch and taste. And there is nothing more to it; I feared reading this book any more. I needed time to continue reading this gem. And I have overloaded myself with it. After this overdose, something continued its journey with me—the meaning of this particular book.

Even though I have more 80 pages to read, I somehow knew where he was leading with the rest of the book. The effect that the 85 pages have done to my mind, I had the thoughts of Antoin for next 80 pages. I understood Antoin, and I suffered from similar views. I knew where Jean-Paul would lead me next. And I had existential crisis myself at the age of 19, and it was four years ago on 21st September that I first this ‘nausea’ that Sartre calls.

This Nausea bothered me, and I had cried multiple nights because I didn’t know anything anymore. Everything seemed false because nothing had any meaning. I don’t know if this is how it feels for everyone, but the way Sartre had written it down, I could relate to it. I resumed reading the remaining pages to see if I was right and yes, I was. And I predicted right, and it went over like I thought it would. But it was more beautiful than the first half of the book. He did not just raise multiple existential questions; he tried to resolve it.

Even though the resolution is not correctly baked, even Sartre knows that. He didn’t claim to have answers for the problems. Instead, he ended with a note of temporary patches that Antoin would do to avoid Nausea. It is a significant literary work as its style is new, post-modern and unique. Not only for its academic brilliance, but it is also philosophically sound. Unlike other books which claim to be resolutions of your life and offer fake solutions through influence, Nausea is pretty much straight forward and asks you questions. It is up to you to resolve those questions, or you can choose to embrace them.

You might be having a good day or a bad day. You might be depressed or delighted. You might be having a stressful day ahead or an easy-going one; the only thing that can make you smile after a human contact is “food.”

 If you are sad, it makes you feel better. If you are happy, it doubles your happiness. In this article, let us learn about some dangerous kitchen and food practices that we follow every day and how can we stop them, so that we can be happy and healthy.

Using Separate Cutting Boards:

Most of us use the same cutting board for vegetables, fruits, raw meat, cooked meat etc. Never do this, this very harmful and wrong practice. If you use the same board for cooked and raw meat, there is a big chance of cross-contamination of food.

If you use the same board for cutting fruits and vegetables for your salad and resting the raw meat, there is a significant chance that the bacteria in the meat will enter the salad and cause severe health issues. Use separate boards to keep it clean and efficient.

Preheating The Cooking Utensil Correctly:

The typical cooking mistake is not preheating the pan cooking utensil correctly before you start cooking. By not preheating correctly, it delays the process of cooking and even leads to serving raw food.

It is very dangerous, mainly when you are cooking meat or mushrooms. They cause food poisoning, and even there are cases of intestine damage. So preheat the pan correctly before you start cooking.  

Stirring Or Turning The Food Too Often:

It is a classic rookie mistake we all make, checking the food and stirring it often. Many experts chefs say ” stir occasionally” don’t stir frequently. By stirring food frequently there will be a huge quality issue to the food. It may stick to the bottom of the pot, may not cook properly, may lose the flavour and even remain uncooked. Let the food settle down; don’t stir it frequently.

Turning the food frequently, especially meat, omelettes, pancakes, etc., can make it undercook or overcook it. By this, it may be undercooked, lose its texture, lose its flavour, lose its texture, and maybe burnt. Please don’t turn it frequently; let it cook entirely so that it can be healthy and delicious. 

Don’t Eat Hot Food In Plastic Plates: 

Most of us don’t consider this seriously, but this is very important, we should try to avoid plastic, plates, cups etc. for hot foods. Some of the chemicals are harmful to the human body, such as BPA (bisphenol-A) and phthalates. BPA, mainly found in a type of plastic called polycarbonate.

They interact with hot food, which we consume them, and it causes severe health problems. It can lead it various types of cancers, heart diseases and sometimes organ failure. Never consume hot foods in plastic containers. 

In the end, if we avoid the things above we can be safe and keep our loves one safe.

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