Instructor Ms Davis A camera measures how much light is reflecting off of a subject You use the cameras light meter to determine how much light your photo will need Proper Exposurewhat is it ID: 474338
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Slide1
Proper Exposure and Light Meter Basics
Instructor: Ms. DavisSlide2Slide3
A camera measures how much light is reflecting off of a subject. You use the camera’s light meter to determine how much light your photo will need.Slide4Slide5
Proper Exposure-what is it?
The first step in making a good image, is to properly expose it
.
An exposure is a single image on your camera’s
sensor or film.
We call it an
exposure
because the
sensor or film is
being exposed to the light outside of the camera
.
But there is
an
art to the process of exposure, which is the balance you strike between lightness and darkness in any single exposure
. This is
proper exposure
.
To get the correct balance of light and dark, you need to allow the right amount of light to hit the
sensor.Slide6
Proper exposure
Using
a water analogy:
Not
enough – just enough – too
much
Underexposed
–
Proper Exposure- OverexposedSlide7
There are 3 camera controls that control proper exposure.
Let’s find them on your camera. Digital cameras are different!Slide8
Proper exposure (cont.)
Think of filling a bucket with water. Once you know
how much
you need, there are several ways of getting
that same
amount of water in the
bucket. You adjust
aperture, shutter speed and ISO
to get proper exposure.
When they are combined in the correct proportions for the amount of light available, you will get a correctly exposed image (i.e. an image that isn’t too bright or too dark).Slide9
How does this picture look? Slide10
Or this one?
UnderexposedSlide11
And this one?Slide12
And this one?Slide13
How about this one? Proper exposure!Slide14Slide15Slide16Slide17
Proper exposure: This was taken by a beginner last year.Slide18
Light Meter
You must be on M on the mode dial.
You
must adjust your shutter speed and aperture dials to obtain proper exposure. The objective is to get only one line under the o.
What happens if the lines are over in the -? In the +?
Your ISO also plays a major part in proper exposure too, but we won’t cover that at this time. Just leave it at 400.
You must meter off of your
subject to determine how much exposure it needs.
Not all camera’s have a meter that looks
like this
Light meter on the Nikon D90Slide19
Hands on Break
1) Practice using your shutter speed dial and
aperture dials
to create a proper exposure, using the light meter inside your camera
.
Start at 1/60 on the shutter speed dial, and go up from there.
Do not go below 1/60
.
2. Hands on break. Practice using your light
Meter and adjusting your shutter speed and aperture dials
To obtain proper exposure. And practice focusing.
Shutter speed
ISO
Aperture