Jump to content



Sign up for a free account to remove the pop-up ads

Signing up for an account is fast and free. As a member you can join in the conversation, enter contests and remove the pop-up ads that guests get. Click here to create your free account.

Photo
- - - - -

Progressive Scan in different view modes...


This topic has been archived. This means that you cannot reply to this topic.
6 replies to this topic

#1 of 7 OFFLINE   Darren Haycock

Darren Haycock

    Second Unit



  • 456 posts
  • Join Date: Nov 13 2002

Posted April 06 2004 - 12:51 PM

Hey guys,
I really haven't jumped into the HDTV market yet (being a poor college student has somethin' to do with it), so please forgive my ignorance. But I heard that almost, if not all widescreen HDTVs will stretch a progressive scan signal to fill the screen. In other words, for 16x9 material, this is no biggie. But for 4x3 material such as certain tv shows or certain video games, it will stretch and be distorted. Are there any tvs that will let you change the view modes even in progressive scan?
"Make ready, for this is our first and final battle..."

#2 of 7 OFFLINE   Steve Schaffer

Steve Schaffer

    Producer



  • 3,759 posts
  • Join Date: Apr 15 1999

Posted April 06 2004 - 02:50 PM

Darren,

What you're referring to is the "locks in full when fed progressive scan" syndrome. In olden times, like 3 years ago and older, there were a large number of 16/9 sets on which the various stretch/zoom modes would not work if they were fed 480p. This is no longer the case.

Virtually all 16/9 sets currently on the market will stretch/zoom a 480p signal, I can't think of a single mainstream mfg whose sets won't do this.

HD scanrates are a different matter. Virtually all current sets still lock into full mode when fed 1080i or 720p.
Steve S.
I prefer not to push the subwoofers until they're properly run in.

#3 of 7 OFFLINE   Darren Haycock

Darren Haycock

    Second Unit



  • 456 posts
  • Join Date: Nov 13 2002

Posted April 06 2004 - 06:05 PM

Thanks Steve, I appreciate the informative response. Good to know this really isn't an issue anymore...
"Make ready, for this is our first and final battle..."

#4 of 7 OFFLINE   Steve Schaffer

Steve Schaffer

    Producer



  • 3,759 posts
  • Join Date: Apr 15 1999

Posted April 07 2004 - 03:00 PM

Darren,

Just to be sure, when you've picked out some likely candidates it would be a good idea to post again inquiring as to whether or not the particular model numbers you're considering have the lock in full with 480p problem. Some plasmas still have this characteristic, but most all crt and rptv sets don't.
Steve S.
I prefer not to push the subwoofers until they're properly run in.

#5 of 7 OFFLINE   Allan Jayne

Allan Jayne

    Screenwriter



  • 2,406 posts
  • Join Date: Nov 01 1998

Posted April 08 2004 - 02:11 AM

I say you ought to find out for sure whether the TV locks in full with progressive scan and if it does lock in full, you should shun it.

You definitely need the ability to zoom and to do 4:3 mode.

Video hints:
http://members.aol.c...ynejr/video.htm
.

#6 of 7 OFFLINE   Darren Haycock

Darren Haycock

    Second Unit



  • 456 posts
  • Join Date: Nov 13 2002

Posted April 08 2004 - 05:12 AM

Don't worry Allan. For that much money, it better do everything I want it too, plus more! Thanks for the link.
"Make ready, for this is our first and final battle..."

#7 of 7 OFFLINE   nick_rh

nick_rh

    Stunt Coordinator



  • 86 posts
  • Join Date: Jan 01 2003

Posted April 08 2004 - 05:35 AM

I have the Panasonic PT-47WX53, and while it locks into Full mode on 1080i HD material, it does allow you to choose among Full, 4:3, and Zoom on normal progressive scan material. The only option lacking in that mode is Just, which performs a combination of cropping and stretching to create a more normal-looking 16x9 picture from a 4x3 source.