This document discusses different types of camera lenses and their effects. Wide-angle lenses below 35mm are used for landscapes and exaggerate depth and distortion, while mid-range 50mm lenses represent normal human vision. Telephoto lenses over 100mm are used for portraits and wildlife and have a shallower depth of field. The document also explains rack focus, a technique where the camera shifts focus between the foreground and background to draw attention. It provides a preliminary filmmaking task to demonstrate match on action, shot/reverse shot editing, and following the 180-degree rule with careful framing.

1. Lenses:
Focal Length &
Depth of Field

2. WideAngle
Lens
-35mmorbelow
- Below10mm=fisheyelens
 Used for landscapes and wide shots
 Greater depth of field
 Exaggerates depth
 Distorts lines – especially below 10mm

3. Mid-range
Lens
-50mm
 Used for streets and documentary
 Represents how we see

4. Telephoto
Lens
-100mmandabove
 100mm used for portraiture
 200mm plus used for sport and wildlife
 Shorter depth of field
 Flattens space

5. Focal Length - 17mm Focal Length - 100mm
35mm 85mm Wide Angle Telephoto

6. Rack Focus
 This process refers to the changing of focus during the shot,
shifting the image in focus from the foreground to the background
or vice versa.
 The movement can be small or more pronounced, but if the depth
of field is shallow it is more noticeable.
 The technique is used to draw attention to something in the frame
or to creating further meaning.

7. Preliminary
Task
Continuity task involving filming and editing a
character opening a door, crossing a room and
sitting down in a chair opposite another character,
with whom she/he then exchanges a couple of lines
of dialogue.
This task should demonstrate…
 match on action
 shot/reverse shot
 the 180-degree rule.
You should also carefully consider your framing.