Lens Flashcards Preview

Dig. Photography > Lens > Flashcards

Flashcards in Lens Deck (12):
1

Lens

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.

2

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

The Nodal Point and the Sensor/ Film plane

3

Focal length of the lens

The distance between the two points in the lens.

4

Nodal Point

optical sensor of the lens where the light crosses.

5

Zoom Lens

Incorporates many focal lengths in the lens.

6

Normal Focal Length

Angle of view is normal human eye view and as the mm decreases the view increases.
-50mm: Most Basic
-35mm: wider
-63mm: narrower

7

Wide Angle Focal Length

-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.

8

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

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

9

Fish Eye Lens

Wide angle
No set focal Len
Extreme Distortion
360 Angle view

10

Telephoto Lens

Isolation and magnification
-longer and etremeley narrow
-Fixed Focal Length

11

What are the 8 Focal Lengths for a Telephoto Lens?

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

12

Zoom Lens

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