How to influence flash power

Question 1

Name four ways to influence flash poser.

Answer 1

1. Distance from subject
2. Flash zoom setting
3. Camera ISO
4. Aperture

Question 2

Light intensity falls off quickly. What is the name of the formula and what is the formula.

Answer 2

Inverse square of distance.

1/D2

Question 3

You have more control over the flash/s when…..

Answer 3

The closer the flashes are to the subject the more control you have.

Question 4

On a Nikon flash unit, what happens when there is not enough flash power for the scene?

Answer 4

There is a blinking ready light. This means the flash is underexposing the shot.

Question 5

If there is a blinking ready light, how do I know how much the photo is underexposed?

Answer 5

On the LCD screen in the upper right hand corner.

If it disappears, Function Button 2 on the SB-900

Question 6

Aperture affects……………

Answer 6

light from the flash.

Question 7

Shutter speed affects……

Answer 7

the ambient light.

Question 8

the only way to get even coverage is for

Answer 8

the lens and the flash be set at the same focal length.

Question 9

The most common way to get more power out of your flash is to…..

Answer 9

change to a higher ISO.

Question 10

As you change ISO, how do you know what the new usable distance is?

Answer 10

Look on the LCD display on the back of the flash.

Question 11

If you are having trouble lighting a scene and the flashes aren’t putting out enough power, you must……

Answer 11

choose a larger aperture.