Jump to content


Photo

Could somebody tell me what TV lines are


  • Please log in to reply
1 reply to this topic

#1 Richardson Leao

Richardson Leao
  • Basic Members
  • PipPipPipPip
  • 363 posts
  • Other
  • Stockholm, Sweden

Posted 25 April 2008 - 03:37 AM

Hi All,

sorry for my ignorance but I need a video camera to do a film scanning device and I am a bit confused with the terminology. What is the advantage of a camera with more TV lines? And would the TVL be equal to the pixel resolution of the ccd, let's say, PAL, 720x5andsomething, wouldn't the no. of vertical lines be equal to=5andsomething? But I've seen cams that have 470TVL and full frame pal resolution. What does it mean?

Also, just to not bother u twice, can someone indicate for me a nice PAL video capture comp card (for uncompressed video or DV25 compression - NO MPEG).

Thanks heaps!
  • 0

#2 John Sprung

John Sprung
  • Sustaining Members
  • 4635 posts
  • Other

Posted 25 April 2008 - 02:45 PM

TV lines are a measure of resolution that originated in the early analog TV days. They would shoot charts consisting of alternating black and white lines of equal width. Originally it was line pairs per picture height, both for vertical and horizontal. But counting individual lines rather than pairs gives you a bigger number, so the marketing departments seem to like that way better now. ;-)




-- J.S.
  • 0


Willys Widgets

Wooden Camera

Metropolis Post

Tai Audio

Media Blackout - Custom Cables and AKS

Broadcast Solutions Inc

Aerial Filmworks

CineLab

FJS International, LLC

Glidecam

Technodolly

New Pro Video - New and Used Equipment

Ritter Battery

Paralinx LLC

Rig Wheels Passport

The Slider

rebotnix Technologies

Abel Cine

Gamma Ray Digital Inc

CineTape

Visual Products

Technodolly

Media Blackout - Custom Cables and AKS

The Slider

Paralinx LLC

Visual Products

rebotnix Technologies

Glidecam

Ritter Battery

Abel Cine

Aerial Filmworks

CineLab

Gamma Ray Digital Inc

Tai Audio

CineTape

Wooden Camera

Willys Widgets

Broadcast Solutions Inc

Metropolis Post

FJS International, LLC

New Pro Video - New and Used Equipment

Rig Wheels Passport