Photography Basics

Question 1

Is the 60 mm lens fixed or zoom?

Answer 1

Fixed

Question 2

Is the 24-70 mm lens fixed or zoom?

Answer 2

Zoom

Question 3

What are the factors affecting exposure? ( Exposure triangle)

Answer 3

ISO

Aperture

Shutter speed

Question 4

What does the ISO effect?

Answer 4

It is the light sensitivity of the sensor

Question 5

What are the effects of a higher ISO.

Answer 5

The higher the ISO the higher the noise in the photo and therefore is a reduced quality of the image

Question 6

What affects does the aperture have?

Answer 6

It controls the volume of light that reaches the lens and the depth of field.

Question 7

What is the depth of field?

Large opening=?

Small opening =?

Answer 7

The amount of acceptable sharpness within a photo that appears to be in focus.

Best is 1/3 in front and 2/3 behind

Large opening = short depth of field

Small opening = larger depth of field

Question 8

How are apertures expressed and how does changing then affect things?

Answer 8

Expressed as f-stops

A change in the f-stop will either double the volume of light or cut it in half.

Closing down on stop will cut the light in half

Opening up one stop will double the light

bigger number is less light and smaller number is more light

Question 9

How do you increase the depth of field?

Answer 9

Use a smaller aperture (larger number)

Increase the camera to subject distance = move away

Use a shorter focal length= zoom out

Question 10

What does shutter speed do?

Answer 10

Controls the amount of time the sensor is exposed to light.

Question 11

What are the exposure modes used in photography and how does it affect the camera?

Answer 11

Programmable = camera select s aperture and shutter speed

Aperture priority = you select aperture and camera selects shutter speed * used most

Shutter Priority = you select shutter speed and camera selects aperture

Manual = you select aperture and shutter speed

Question 12

What are the three metering modes of through the lens metering?

Answer 12

Matrix - metering across whole frame * most used*

Centre weight - metering from centre of frame

Spot- metering of a specific spot *only used in specific instances like surveillance

Question 13

What level of grey does the camera see?

What does that do to light and dark scenes.

Answer 13

18 %

Light scenes such as snow would wee more and make it look more grey

Dark scenes such as arson would look over exposed.

• change the compensation *

Question 14

What are the aperture setting steps?

Answer 14

1- select an aperture 
2- check shutter speed and determine if fast enough for hand held
3- if not fast enough 
         - adjust aperture 
         - add a flash
         - use a tripod
         - Adjust ISO

Question 15

What are the manual setting steps?

Answer 15

1- select an aperture

2- adjust the shutter speed so the meter is 0 and determine if fast enough to hand hold

3- if shutter speed not fast enough

     - adjust aperture
     - add a flash
     - use a tripod 
     - adjust ISO

Question 16

When do you use auto focus mode?

Answer 16

Dynamic area

Single point

Question 17

When do you use manual focus

Answer 17

Night photography

Close up photography

Fingerprint photography

Question 18

What does Inverse Square Law mean?

Answer 18

The intensity of light reaching an object is inversely proportional to the square of the distance between the object and the light source.

• the closer the light the more intense and the smaller the area in the light.**

** the further back the light goes it becomes less intense and covers more area up to a point**

Question 19

What are the flash techniques?

Answer 19

Direst flash

Bounce flash

Oblique flash

Feathered flash

Fill flash

Question 20

What is a fill flash used for?

Answer 20

It is used to lighten shadowed areas.

use a sync cord

Question 21

What is perspective?

Answer 21

The rendition of three dimensional objects onto a flat, two dimensional surface in such a way as to convey the impression of depth and distance

Question 22

What are the three flash modes

Answer 22

Synchronized flash

Slow-sync flash

Rear curtain sync

Question 23

What affects the perspective?

Answer 23

Perspective is not changed by changing the focal length

Changing camera position changes the perspective

Perspective will remain constant regardless of the lens as long as the camera to subject distance does not change