depending on the intensity of light in different parts of the photo

It was discovered in the beginning of 1800 that a plate was coated with a 'light sensetive' chemical substance, depending on the intensity of light in different parts of the photo, the parts of the plate reacted differently. As a result, the picture appeared on the plate. The problem is that in other places ... this image could not be permanently shaped.

For work I use:

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Camera	Canon 80D
Lens	Canon -50 mm 1:8-5.6G
Category	Landscapephotography
ISO	100
Location	Dhaka
Processing photos	Outdroor

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For work I use:

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Camera	Canon 80D
Lens	Canon -50 mm 1:8-5.6G
Category	Landscapephotography
ISO	100
Location	Dhaka
Processing photos	Outdroor

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Approximately ten to twelve minutes to make the camera go in the light to take this picture; As I mentioned earlier, it took a long time to capture a picture in Daguerreotype, because the medium could not be very light sensitized. The funny thing is, the presence of two people in the picture (check out) Exposing images for a long time usually does not capture anything running on the film (lecture is coming out in front of exposure), but one of them was a shoe polisher, and one of his customers. Because of which they were fairly stable in one place.