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F-stops and exposure.

Click on the correct answer
You can have more than one attempt at each question but each wrong guess will affect your score.


1

An aperture and shutter combination of f-11 at 1/125th of a second will produce the same exposure, using the same film speed, as which of the following ?

 

 

f-8 at 1/60th of a second.

 

 

f-8 at 1/250th of a second.

 

 

f-16 at 1/30th of a second.

 

 

f-5.6 at 1/250th of asecond.

 

 

 

 


2

If a combination of f-16 at 1/30th of a second yields the correct exposure what effect will be seen by increasing the aperture to f-8 ?

 

 

Underexposure.

 

 

Overexposure.

 

 

Nothing.

 

 

Reduced film speed.

 

 

 

 


3

My light-meter tells me I need an aperture of f-11 using 400 ASA film. If I am actually using 100 ASA film what aperture should I set ?

 

 

f-16

 

 

f-22

 

 

f-8

 

 

f-5.6

 

 

 

 


4

If I change my shutter speed from 1/250th of a second to 1/60th of a second how much more light will reach the film ?

 

 

Half as much.

 

 

Twice as much.

 

 

Four times as much.

 

 

Thee times as much.

 

 

 

 


5

What is the difference , in stops, between f-4 at 1/60th of a second and f-16 at 1/60th of a second ?

 

 

2 stops.

 

 

4 stops

 

 

6 stops

 

 

8 stops

 

 

 

 


6

What is the difference , in stops, between f-4 at 1/60th of a second and f-8 at 1/30th of a second ?

 

 

1 stop.

 

 

2 stops.

 

 

3 stops.

 

 

4 stops.

 

 

 

 


7

A film with a speed of 400 ASA is;

 

 

Twice as sensitive as 800 ASA film.

 

 

Half as sensitive as 200 ASA film.

 

 

Twice as sensitive as 200 ASA film.

 

 

Twice as sensitive as 100 ASA film

 

 

 

 


8

If I wanted to give my film 2 stops more exposure I could do which of the following ?

 

 

Increase the size of the aperture. (smaller f-number)

 

 

Reduce the size of the aperture. (larger f-number)

 

 

Increase the shutter speed. (faster)

 

 

Any of the above.

 

 

 

 


9

A setting of f-8 at 1/125th of a second using 100 ASA film would be equivalent to which of the following ?

 

 

f-11 at 1/125th of a second using 200 ASA film.

 

 

f-4 at 1/500th of a second using 100 ASA film.

 

 

f-11 at 1/30th of a second using 50 ASA film.

 

 

None of the above.

 

 

 

 


10

Which is the faster lens ?

 

 

50 mm f-2.8

 

 

300mm f-2.8

 

 

90mm f-2

 

 

50mm f1.4

F-stops and exposure.

Click on the correct answer
You can have more than one attempt at each question but each wrong guess will affect your score.


1

An aperture and shutter combination of f-11 at 1/125th of a second will produce the same exposure, using the same film speed, as which of the following ?

 

 

f-8 at 1/60th of a second.

 

 

f-8 at 1/250th of a second.

 

 

f-16 at 1/30th of a second.

 

 

f-5.6 at 1/250th of asecond.

 

 

 

 


2

If a combination of f-16 at 1/30th of a second yields the correct exposure what effect will be seen by increasing the aperture to f-8 ?

 

 

Underexposure.

 

 

Overexposure.

 

 

Nothing.

 

 

Reduced film speed.

 

 

 

 


3

My light-meter tells me I need an aperture of f-11 using 400 ASA film. If I am actually using 100 ASA film what aperture should I set ?

 

 

f-16

 

 

f-22

 

 

f-8

 

 

f-5.6

 

 

 

 


4

If I change my shutter speed from 1/250th of a second to 1/60th of a second how much more light will reach the film ?

 

 

Half as much.

 

 

Twice as much.

 

 

Four times as much.

 

 

Thee times as much.

 

 

 

 


5

What is the difference , in stops, between f-4 at 1/60th of a second and f-16 at 1/60th of a second ?

 

 

2 stops.

 

 

4 stops

 

 

6 stops

 

 

8 stops

 

 

 

 


6

What is the difference , in stops, between f-4 at 1/60th of a second and f-8 at 1/30th of a second ?

 

 

1 stop.

 

 

2 stops.

 

 

3 stops.

 

 

4 stops.

 

 

 

 


7

A film with a speed of 400 ASA is;

 

 

Twice as sensitive as 800 ASA film.

 

 

Half as sensitive as 200 ASA film.

 

 

Twice as sensitive as 200 ASA film.

 

 

Twice as sensitive as 100 ASA film

 

 

 

 


8

If I wanted to give my film 2 stops more exposure I could do which of the following ?

 

 

Increase the size of the aperture. (smaller f-number)

 

 

Reduce the size of the aperture. (larger f-number)

 

 

Increase the shutter speed. (faster)

 

 

Any of the above.

 

 

 

 


9

A setting of f-8 at 1/125th of a second using 100 ASA film would be equivalent to which of the following ?

 

 

f-11 at 1/125th of a second using 200 ASA film.

 

 

f-4 at 1/500th of a second using 100 ASA film.

 

 

f-11 at 1/30th of a second using 50 ASA film.

 

 

None of the above.

 

 

 

 


10

Which is the faster lens ?

 

 

50 mm f-2.8

 

 

300mm f-2.8

 

 

90mm f-2

 

 

50mm f1.4