Summative Review

Question 1

When using a pinhole camera, why is the image produced, inverted?

Answer 1

Because the straight lines of line bounce off the top of the object, then must descend in order to reach the pinhole. The light passes through the hole, still in a straight line, and reaches the bottom of the wall.

Question 2

What is a pinhole camera?

Answer 2

A simple camera without a lens, but a tiny aperture, a pinhole, and light proof box with a small hole in one side. Light from a scene passed through the aperture and projects an inverted image on the opposite side. This is known as the camera obscura effect.

Question 3

When a pinhole is placed between a person and the wall, what does it do?

Answer 3

It eliminates all other light sources and an image is produced. This is because the the pinhole focuses the rays of light making them only strike one point. This stops the rough surfaces of objects from bouncing off at many different angles, as they normally would.

Question 4

Pinhole VS SLR

Answer 4

Pinhole:
•light tight box= foamcore 
•Aperture = pinhole 
•shutter = tab
•light sensitive material = photopaper

Both:
•light tight box
•aperture 
•shutter
•light sensitive material 

SLR:
•light tight box + mirror and gears and more settings
•aperture = adjustable lens
•shutter = adjustable curtain
•light sensitive material = film or light sensor

Question 5

What is ISO?

Answer 5

The light sensitivity of the paper, film or sensor.

Question 6

What does a small number ISO do?

Answer 6

Makes it not as grainy, sharper image and you will need more light.

Question 7

What does a larger number ISO do?

Answer 7

Makes it more grainy, and much more efficient in low light.

Question 8

ISO on pinhole?

Answer 8

The photopaper.

Question 9

What is aperture?

Answer 9

Controls the size of the opening

Question 10

What does a smaller number (f4) aperture do?

Answer 10

Larger lens opening allowing more light into the camera, therefore shallow depth of field.

Question 11

What does a larger number (f22) aperture do?

Answer 11

Smaller lens opening and lets less light into the camera, therefore deep depth of field.

Question 12

What is shutter?

Answer 12

Controls the amount of time the camera allows light in AKA exposure time

Question 13

What does a slower shutter speed (bigger number = 1/1000) do?

Answer 13

Shorter exposure time, freezes action, allows less light in.

Question 14

What does faster shutter speed (smaller number = 1/30) do?

Answer 14

Longer exposure time, Blurs actions, lets more light in.

Question 15

What is the sunny 16 rule?

Answer 15

1. Set the shutter speed to the setting nearest to the ISO film speed.
2. Set the f-number according to weather chart (provided)

Question 16

What is bracketing and how is it done?

Answer 16

The process of taking 5 photos, purposely under and over exposed in order to ensure the best exposure. You keep the shutter or aperture setting, then increase by 1, then 2, then decrease by 1, then 2, of the other, depending on whether it’s wanted blurred, shallow depth etc…

Question 17

What is deep depth of field?

Answer 17

The larger the aperture the deeper the field, more objects focused

Question 18

What is shallow depth of field?

Answer 18

The smaller the aperture, the shallower the field, less focused objects

Question 19

What’s depth of field?

Answer 19

Distance between the nearest and farthest objects in a scene that are in focus. The size of the aperture affects it.

Question 20

What are the steps to go from an undeveloped image on a roll of film to a developed roll of film?

Answer 20

Step 1: take black canister from camera, put in closed black bad with reel and big canister.

2: put in reel, then reel into canister, while all still inside the bag.
3: pour developer into canister for 7 and 1/2 minutes (500ml)
4: pour in stop for 1 min (500ml)
5: fix for 3 min (500ml)
6: take out film from reel and canister then rinse