The history behind digital photography and digital cameras.// ডিজিটাল ছবি এবং ডিজিটাল ক্যামেরার পিছনের ইতিহাস

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Bismillahir Rahmanir Rahim

Assalamu Alaikum wa Rahmatullahi wa Barakatuhu

Dear Sir, Today I will share with you the history of taking pictures on camera and welcome all of you.

What kind of open colors are used to take pictures in the same way and what are they used for? The image of the way the first picture was taken says something else.

It was only possible for kings and emperors to take pictures of themselves and capture them in frames.

In most cases, kings and emperors used to have their paintings painted by portrait artists. But now we have entered the age of technology where we are taking pictures of ourselves and spreading these pictures on social media. At present we have to go through many steps to reach this stage of this modern technology of photography. Nowadays digital images used to be color images in the codechrome system, before that there were black-and-white images from small negatives in the gelatin system, before that there were platinum prints, egg whites prints, and so on.

If I go back in the history of this photography, there will come a time of dagrootype. The French artist Louis Daguerre, who used to capture magical images on a plate in a fancy way, has become the center of interest for photographic scientists in the world today.

What is dagrotype? We don't know much about photography before we know what a dagrotype is. There are two things that work behind photography. The light will be reflected from the person I am taking and will fall on a screen. The light reflected from the object in front will go away, other surrounding lights will not be able to enter there. Second, the light casts a permanent shadow over the screen.

Dagerotype: - A box is drilled through an alpin-sized hole and the box is aimed at the scene. From a straight light scene, the reflected light enters through a hole in the box and creates a reflection of that scene on the opposite side, on the back wall of the box. That image is exactly like the front view, only inverted. That is, if you are human, head down, feet up. The success of this camera is due to the fact that the ambient light is not allowed to enter as much as possible because the light is reflected on both sides of the box so that the image of the back wall can be mixed. Goes.

This is called pinhole camera or camera obscura). We call it camera but there is no image stability here it can only be considered as a shortcut method for drawing pictures. This method can be called cheating. Here the artists do not look at the picture but only the picture that falls on the screen of the camera obscura. Then the ambushing artists made a picture with the pencil size on the picture and the picture was painted on the wall.

This is the miracle of Louis Dagger and some of his disciples. This is called dagerotype.

I will discuss the history of photography in the second part inshaAllah.

God bless you