Canon XL 1 Manual del usuario - Página 17

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Unlike selecting the audio output in VCR mode, you cannot mix the balance at

this point — even if VARIABLE is chosen at the VCR menu, it is fixed during

camera mode.

Depth of Field

Shallow vs great DOF

Manipulating DOF = iris

Focal length (zooming in) - long focal length = shallow DOF

Camera to object distance (focus)

Cables

1. BNC - only designed to carry video signals

- co-axial

- insulated protected sheath

- doesn't generate electricity outside, nor is it influenced by electricity

outside of it

- professional cable

- analogue cable, carrying an analogue signal

2. Kettle plug - carries current/electricity

- controls behaviour of devices

- carries only electricity, not audio or video

3. RCA - analogue cable

- co-axial

- not professional

- domestic plug

- can take either video or audio, not simultaneously

- can only take one wavelength of information

4. Firewire cable - aka 4 to 6, 4 to 4, 6 to 6, 1394 protocol

- digital cable

- carries video and audio simultaneously

- only need one cable to digitise

- 2 types of firewire:

- also carries control information, can start and stop your machine

using a complicated control algorithm

(zooming out) – short focal length = great DOF =

all in the same focal plane

Firewire 400 = slower than USB2

Firewire 800 = same speed as USB2