Lens

Question 1

Lens

Answer 1

Focuses the light entering the camera. The different length determines the Focal length of the lens which is the distance between the two points in the lens.

Question 2

What are the two points in the Focal Length of the lens.

Answer 2

The Nodal Point and the Sensor/ Film plane

Question 3

Focal length of the lens

Answer 3

The distance between the two points in the lens.

Question 4

Nodal Point

Answer 4

optical sensor of the lens where the light crosses.

Question 5

Zoom Lens

Answer 5

Incorporates many focal lengths in the lens.

Question 6

Normal Focal Length

Answer 6

Angle of view is normal human eye view and as the mm decreases the view increases.

• 50mm: Most Basic
• 35mm: wider
• 63mm: narrower

Question 7

Wide Angle Focal Length

Answer 7

• Shorter than normal lens: theres more info in lens.
• Wider view : greater than human view
• Used for panoramas.
• as focal length gets shorter the angel of view gets wider
• Shorter lens means more distortion: barrel Distortion.

Question 8

What are the 8 different Focal Lengths for a Wide Angle Lens?

Answer 8

28mm
24mm
22mm
18mm
13mm
12mm
11mm
7mm

Question 9

Fish Eye Lens

Answer 9

Wide angle
No set focal Len
Extreme Distortion
360 Angle view

Question 10

Telephoto Lens

Answer 10

Isolation and magnification

• longer and etremeley narrow
• Fixed Focal Length

Question 11

What are the 8 Focal Lengths for a Telephoto Lens?

Answer 11

70mm
80mm
105mm
135mm
200mm
300mm
500mm
1000mm

Question 12

Zoom Lens

Answer 12

Many Focal Length
18mm–>140mm Wide to telephoto
18mm–>55mm normal to telephoto
-Aperture is not as focused