Photography- EXPOSURE TRIANGLE
What Is
Photography?
Photography
is the art of capturing light with a camera, usually via a digital sensor or
film, to create an image.
The
first permanent photograph was captured in 1826 (some sources say 1827) by
Joseph Nicéphore Niépce in France.
BASIC CONCEPTS OF PHOTOGRAPHY
These are the main photography basics:
1.
Exposure
2.
Aperture
4.
ISO
7.
Focal length
8.
Sensor size
9.
Focus
10. Sharpness
11.
Camera settings
12. Camera modes
13. Metering modes
15. White balance
16. Histogram
17. Composition
18. Photography gear
19. Editing
EXPOSURE-THE MAIN ELEMENT OF PHOTOGRAPHY
Exposure is the most important photography basic and the photography concept, exposure is depend on the amount of light collected by our camera.
“Photography is painting with light”, Photography is about capturing light.
The photography exposure basics are
the aperture, shutter speed,
and ISO.
The image should be correctly exposed,
that is, with the perfect amount of brightness where you can see all the detail
in the highlights and the shadows.
1.APERTURE-A FUNDAMENTAL CONCEPT IN PHOTOGRAPHY
In
brief, the aperture works
like our pupils; it’s the opening of the camera lens, which controls the amount
of light that goes through the lens to the camera sensor.
The wider the aperture the
brighter the image will be, and
the narrower the aperture the
darker it will be.
It
also plays a significant role in the depth
of field and sharpness of
the image.
The
aperture of the lens is defined by a value known as “F-stop”.
The larger the
F-stop number is, the smaller the aperture and
the smaller the F stop number is the larger aperture .
The best aperture
camera settings will depend on
the light, the subject that you’re shooting, and the final look that you want
in your image.
https://www.youtube.com/watch?v=YojL7UQTVhc&list=PLBWs5dCYykYXo6VmL9EuetvoLSH8bEHlt
2. SHUTTER SPEED
A KEY ELEMENT FOR PHOTOGRAPHY
The
shutter speed is
related to how long the camera shutter is open and capturing light.
This
has a significant impact on the exposure;
a longer shutter speed will capture a brighter image.
a shorter shutter speed will translate into a darker image whereas
The best shutter speed settings will
depend on the available
light and the
motion that you want to capture in your subject.
3.ISO –
when you double your ISO speed, you are doubling the brightness of the photo. So, a photo at ISO 400 will be twice brighter than ISO 200, which will be twice brighter than ISO 100.
the higher the ISO, the brighter the image will be, and
the lower the ISO, the
darker the photograph will be.
The
ISO number is usually measured using “ISO levels”,
which follows this sequence:
ISO stands for International Organization of Standardization.
The International Organization of Standardization was a governing body responsible for standardizing sensitivity ratings for camera sensors.
A high ISO number makes the roll of film more sensitive to light.
When the photography world made the switch to digital cameras, it retained the ISO standard to describe a digital sensor’s light sensitivity.The minimum setting on most digital cameras is ISO 100, which is the least sensitive to light. The maximum light sensitivity setting varies by camera model.
EXPOSURE TRIANGLE –THE PHOTOGRAPHY BASICS
The
photography basics of aperture, shutter speed, and ISO,
it’s time to put them all together!
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