All language subtitles for 15 - Camera to RAW File

So far, we know that raw files accommodate
a higher color depth than JPEGs.

Let's take it a step further and explore
how a raw file is

actually created by your camera.

The reason it's important to understand
this process

is because raw files are proprietary
and specific to each camera manufacturer.

The proprietary nature of a raw file
is the reason

additional formats like DNG
and TIFF were created.

They're meant to be universally accepted
and not confined

to the applications of one manufacturer.

Let's

start our explanation
by exploring the sequence of events

that occur
when we actually take a photograph.

Once you press the shoot
button, also known as the shutter release

light photons
enter your camera and straight.

Your camera's image sensor.

The image sensor is made up

of microscopic
individual sensors called photo sites.

Each photo site

represents
one pixel in your digital image.

The photo site records

the number of photons that are collected.

The brighter the light,

the more photons that are collected.

These individual recordings
are then transported

in translated into digital information.

The information is stored

into the temporary memory of your camera.

From that point,

the camera has to process this information
using a microprocessor

and processing engine.

Cannon, for example, uses

the digital processing engine.

This processing

engine
or software turns the digital information

into a digital image
that most applications can understand.

The processing engine
proprietary to each manufacturer

is responsible for a number of processes,
such as applying, sharpening,

saturating colors,
setting the brightness level

of the various parts of the exposure
and much more.

The original data
captured by the image sensor and not yet

processed into a compressed file
format such as JPEG is known as raw data.

This raw
data is essentially your raw file.

You can think of raw data
as the image captured

onto a film with a traditional SLR camera.

The film is then sent to a studio,
which in turn develops

it into a printed photograph.