Speedlight

Question 1

Light enables you to see what?

Answer 1

The subject.

Question 2

Shadow enables you to see what?

Answer 2

Depth.

Question 3

What are the steps before turning speedlight on:

Answer 3

1. AV mode
2. Determine aperture based on DOF
3. Test shot
4. If necessary, override shutter speed by dialing in exposure compensation
5. Repeat steps 3 & 4 until you like how
   ambient light is recorded

Question 4

What are two main factors used to determine the power of the speedlight?

Answer 4

Flash to subject distance

Reflectivity of the subject

Question 5

FEC means:

Answer 5

Flash exposure compensation

Question 6

Shutter speed controls:

Answer 6

Ambient exposure

Question 7

Aperture controls:

Answer 7

Flash exposure

As long as the sync speed for your camera is not exceeded, then shutter speed has no effect on flash exposure.

Question 8

If you go from a shutter speed of 1/30’ to 1/60’ what effect does this have on what type of light?

Answer 8

Reduces the ambient light by 1/2 (50%) - 1 full stop.

Question 9

If you go from a shutter speed of 1/125 to 1/60 what happens?

Answer 9

Doubles the amount of ambient light - 1 full stop.

Question 10

If you go from a shutter speed of 1/60 to 1/80 what happens?

Answer 10

Reduces the ambient light by 1/3 (1/3 stop).

Question 11

What exposure control affects the flash exposure and why?

Answer 11

The aperture affects the flash exposure because if you open the aperture it let’s more light in. If you close down the aperture it reduces the amount of light that comes in.

If you want more ambient light in the exposure, use a slower (longer) shutter speed. If you want to dim the ambient light, use a faster (shorter) shutter speed.

Question 12

Why should you build your shot in steps?

Answer 12

If you change too many things at once – moving the light stand, resetting the power level, zooming the flash – when th ereaulting picture doesn’t turn out the way you expected you don’t know why or what you should change.

Question 13

How do you build your shot in steps for a single speedlight?

Answer 13

1. Find exposure for ambient light.
2. Position & modify speedlight to get shadow quality you want.
3. Play with power level.

Question 14

How many characteristics does light have and what are they?

Answer 14

Nine characteristics

Intensity - how hot is the light
Direction - direction it comes from & angle it hits subject
Path - direct or reflected
Temperature -
Shadowline - sharp or blurry
Contrast -
Consistency - even or dappled, steady or changing
Highlights - speculate, glare
Chiaroscuro - transition from light to dark quickly

Question 15

Shadows give us info about:

Answer 15

Shape & depth

Strong shadow uses hard light, subtle shadow uses soft light.

Question 16

Depth is decoded by:

Answer 16

Light/shadow & shape/position

Question 17

What is dynamic range?

Answer 17

The maximum range from light to dark

Question 18

In a high dynamic range situation, what would you do?

Answer 18

Exposé for highlights and use fill light for shadow areas.

Question 19

How is the f-stop number determined for a lens? In other words, why would two different lenses have different physical sizes of the aperture?

Answer 19

Aperture is determined by a ratio of the opening to the focal length of the lens.

Question 20

What does the AE lock button do?

Answer 20

It holds the meter reading so that you can meter a scene, then re-compose.

Question 21

Where is the AE lock button located?

Answer 21

Back of camera, top, 2nd from right. Indicated by ‘*’

Question 22

AE means

Answer 22

Automatic exposure

Question 23

What is the color temperature of shade?

Answer 23

7000k

Question 24

What is the color temperature of flash?

Answer 24

6000k

Question 25

What is the color temperature of cloudy?

Answer 25

6000k

Question 26

What is the color temperature of daylight?

Answer 26

5200k

Question 27

What is the color temperature of white fluorescent?

Answer 27

4000k

Question 28

What is the color temperature of tungsten?

Answer 28

3200k

Question 29

How does light travel?

Answer 29

Light travels in a straight line until it hits something. When it hits an object, light will bounce off it or be absorbed by it - or do a bit of each.

Question 30

At what angle will light bounce off an object?

Answer 30

The same angle that it came in. The angle of reflection equals the angle of incidence.

Question 31

What should be your first consideration in controlling the look of light you create?

Answer 31

The size of the light source.

Question 32

How does the distance of the light source from the subject affect the edge of the shadow?

Answer 32

The further away the light source from the subject, the harder the shadow. The closer the light source is to the subject, the more it can wrap around the subject, producing a softer shadow.

Question 33

What affect will the size of the light source have on the shadow?

Answer 33

The smaller the light source, the harder the shadow.

The larger the light source, the softer the shadow.

Question 34

The distance between the subject and what determines the exposure?

Answer 34

The distance between the subject and the lights determines the exposure, not the distance between the subject and the camera.

Question 35

How does distance between the light source and the subject affect the evenness of the light?

Answer 35

The closer the light source to the subject, the more dramatic the fall-off will be. Likewise, the farther you place your light from the subject the more even the light will be.