Jump to content


Photo

compression in hvx


  • Please log in to reply
3 replies to this topic

#1 Ratheesh Ravindran

Ratheesh Ravindran
  • Basic Members
  • PipPip
  • 23 posts
  • Cinematographer
  • Kolkata,India

Posted 13 June 2006 - 10:32 AM

hi,
hvx is new to me.i want to know one thing.how does the image looks like when it is shot on 720/24p.is this ideal for film transfer and will the images shot on hvx remain as HD signals till the end.please throw some light on this.
thanking you,
expecting a reply soon,
ratheesh ravindran.
  • 0

#2 David Mullen ASC

David Mullen ASC
  • Sustaining Members
  • 19769 posts
  • Cinematographer
  • Los Angeles

Posted 13 June 2006 - 12:04 PM

I've heard that 720P is the best shooting mode for this camera. It is the same DVCPRO-HD codec as is used by the Panasonic Varicam. As for how it looks transferred to 35mm, that's something you'd have to test. The overall quality should be a little lower than the Varicam since this is a 1/3" CCD prosumer camera, not a 2/3" CCD professional camera, with fewer pixels on the chip; certainly the lens on the HVX200 will not match a $30,000 HD zoom.

As to whether the 720P signal you record remains 720P through the post chain to the film recorder, that's sort of up to you and how you post it. You could, for example, downrez it to standard def and thus not be in HD anymore.
  • 0

#3 Ratheesh Ravindran

Ratheesh Ravindran
  • Basic Members
  • PipPip
  • 23 posts
  • Cinematographer
  • Kolkata,India

Posted 15 June 2006 - 07:22 AM

thanx a lot david..


I've heard that 720P is the best shooting mode for this camera. It is the same DVCPRO-HD codec as is used by the Panasonic Varicam. As for how it looks transferred to 35mm, that's something you'd have to test. The overall quality should be a little lower than the Varicam since this is a 1/3" CCD prosumer camera, not a 2/3" CCD professional camera, with fewer pixels on the chip; certainly the lens on the HVX200 will not match a $30,000 HD zoom.

As to whether the 720P signal you record remains 720P through the post chain to the film recorder, that's sort of up to you and how you post it. You could, for example, downrez it to standard def and thus not be in HD anymore.


  • 0

#4 Matt Irwin

Matt Irwin
  • Basic Members
  • PipPipPipPip
  • 389 posts
  • Cinematographer
  • Los Angeles

Posted 18 June 2006 - 06:01 PM

I'm shooting a short right now with the HVX that has a considerable amount of night exteriors. We tested 1080/24 and 720/24n shooting modes and found that the 720 has noticeably less noise in the camera's "problem area" (between 5 and 20 IRE, roughly). We're shooting 720/24n, and overall I've been very happy with the footage, night shots included.
  • 0


CineLab

Broadcast Solutions Inc

Rig Wheels Passport

The Slider

Tai Audio

Glidecam

rebotnix Technologies

Technodolly

Visual Products

Ritter Battery

Wooden Camera

Gamma Ray Digital Inc

Opal

Aerial Filmworks

Metropolis Post

Abel Cine

FJS International, LLC

Willys Widgets

Media Blackout - Custom Cables and AKS

CineTape

Paralinx LLC

Abel Cine

CineTape

Visual Products

FJS International, LLC

Opal

CineLab

Tai Audio

Wooden Camera

Aerial Filmworks

Technodolly

Metropolis Post

Willys Widgets

Media Blackout - Custom Cables and AKS

Glidecam

Paralinx LLC

Rig Wheels Passport

rebotnix Technologies

The Slider

Gamma Ray Digital Inc

Broadcast Solutions Inc

Ritter Battery