Workshop
2 – Studio Week 4 research questions
In a given situation you are using a Pulso 2 flash pack with a single
head and P70 reflector attached. The
subject is 2m from the head and the unit is set to a power setting of 10 and a
flash meter indicates correct exposure will be achieved by using f64. Your maximum lens aperture is f2.
Given:
Unit: Pulso 2
Heads: 1
Reflector: P70
Subject d: 2m
Power: 10
f-number: f64
Answer the following questions.
1. The Guide Aperture (GA)
of this unit is;
[a] 64
[b] 45
[c] 32
[d] 22
[e] 16
2. Moving the subject to a
new distance of 4m would require the use of;
[a] f64
[b] f45
[c] f32
[d] f22
[e] f16
3. Moving the subject to a
new distance of 8m would require the use of;
[a] f64
[b] f45
[c] f32
[d] f22
[e] f16
4. In the given situation
above, what f-number would you use to achieve correct exposure if the subject was moved to 64m?
F4
In a given situation you are using a Pulso 2 flash pack with a single
head and P70 reflector attached. The
subject is 64m from the head and the unit is set to a power setting of 10 and a
flash meter indicates correct exposure will be achieved by using f2 for a
single flash discharge. Your maximum lens aperture is f2.
Given:
Unit: Pulso 2
Heads: 1
Reflector: P70
Subject d: 64m
Power: 10
Flash number: 1
f-number: f2
5. Complete the table
below to maintain correct exposure for each new power setting.
|
Pulso
2 Flash Power setting
|
Number
of flashes
Required
to maintain correct exposure.
|
|
10
|
1
|
|
9
|
2
|
|
8
|
4
|
|
7
|
6
|
|
6
|
8
|
Let’s make this challenging, J
6. Assuming you have just
correctly exposed your subject in the previous question with power setting of 6; how many flash
discharges would you need to correctly expose the
subject if it was now moved to 128m.
Answer: ____16_____ flashes (phew)
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