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DSLR Tutorial - Day 1

This program is very precise and no blabbers. Everything is dealt to the point and no rubbish stories. Since you would have known about the digital camera and its usage you have now upgraded your camera to DSLR. So lets start from the DSLR and it's basics of control will continue.


Camera : A camera is a device that captures the the environment and its objects into a 2D chemical film, that can be then printed into a photographic paper.

How does a Camera work?
The light absorbing film is placed in the darkest chamber of the camera. For a split second the external light is exposed from a pinhole by a rapid shutter mechanism, and that light is absorbed on the chemical film.

apperture - is the pinhole, that regulates the amount of light
shutter -  that regulates the time for which the light comes through the apperture.



Digital Camera : The same process is done electronically, but
light absorbing film - replaced with -> light absorbing sensor. The sensitivity of the sensor can be controlled and it is called the ISO, starting from 100 to 6400 and growing, where 100 is the lesser sensitivity and it increases.

As sensitivity increases, noise will also increase.

Assuming that you have the basic idea of a digital camera we proceed further,
What is a DSLR Camera?


Digital Single Lens Reflex Camera

What you see is reflected into the view finder it is directly imposed to the sensor that is behind the aperture and the shutter.


Advantages of a DSLR
1. You can change the lens according to the type of photography
2. Can control every individual aspects like apperture, shutter speed, sentivity, exposure, depth of focus.
3. Get high resolution pictures.
4. Add various types of external flashes and accessories.

All these will be discussed very clearly in the following chapters...

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