Cameras,Videotape
& Formats
1
Objectives
• Describe three classifications
of video equipment
• Describe camera classifications
• Identify the types of videotape
and videotape formats
• Discuss acquisition strategies
2
Classifications
• Professional
• Pro-sumer
• Consumer
3
Professional Cameras
• Higher resolution
images
– Typically in the 600700 lines range
• Usually a 3-chip
imaging device
• Interchangeable
parts
4
Professional
Cameras
• Bigger!
• More expensive
• Interchangeable
parts –
– Lens
– Record deck
– Peripherals
5
Professional
Cameras
• Professional
tape formats
–BetaSP
–DVPro, DVCam
–D1, D2
• Usually
component signal
6
Prosumer Cameras
• Mid-range image
resolution
– Typically in the
400-500 lines range
• May have
interchangeable
parts
7
Prosumer Cameras
• Smaller size
• Less
expensive
than
professional
• Usually single
chip imaging
8
Prosumer Cameras
• Tape formats
–MiniDV
–Digital 8 & Hi8
–SVHS
• Usually
component
signal
9
Consumer Cameras
• Somewhat
low resolution– Typically less
than 300 lines
• Single chip
image
• Very
inexpensive
10
Consumer Cameras
• Formats
– VHS
– Standard 8mm
– VHS-C
• Composite
signal
11
Signal Types to Tape
• Composite
– Video info
saved as
“grouped”
– Color &
brightness
together
12
Signal Types to Tape
• Component
– Video info
split
– Color &
brightness
separate
signals
13
Signal Types to Tape
• Digital
– Use transfer
protocol
–Current is
IEEE 1394
14
Videotape Physical
Attributes
2 Basic Types:
Open Reel
Cassette
15
Analog Tape
• Tape format often
is described by
width of tape– I inch
– ¾ inch cassette
– 8 mm
– ½ inch VHS
16
Digital Tape
• Tape format is
described by
the signal type– miniDV
– Digital 8**
– DVPro
– DVCam
17
Professional Tape
• Open Reel
– 2 inch
• four video heads
– 1 inch
• helical scan
• Cassette
– Beta SP
– ¾ inch
– D1 & D2
18
Prosumer Tapes
• ¾ inch cassette
• S-VHS
–
s format
• Hi8
–
s format
• Digital 8
• miniDV
19
Consumer Tapes
• VHS
– composite format
• Standard 8mm
– composite format
• Digital 8
• miniDV
20
Digital Editing
Systems & Software
Professional
“Turnkey Systems”
• Includes all
hardware, software
and peripherals
– Avid System
– Media 100
– MAC-based
21
Digital Editing
Systems & Software
Prosumer
• More specialized
cards for video
• Desktop computer
orientation
• Software such as
Adobe Premiere or
Final Cut Pro
22
Digital Editing
Systems & Software
Consumer
• Simple IEEE 1394
cards
• Desktop computer
orientation
• Software such as
Avid Cinema,
• Videowave, iMovie
23
Tripods
• Strong
enough to
hold weight of
camera
• Stable
• Fluid head
24
Tripods
The least
stable
tripod!!
25
Acquisition
Decisions
• Needs of the
project
• Funding
• User skills
• Trends
26