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-   -   to squeeze or not to squeeze (https://www.dvinfo.net/forum/panasonic-dvx-dvc-assistant/29914-squeeze-not-squeeze.html)

Zareh Tjeknavorian August 1st, 2004 11:44 AM

to squeeze or not to squeeze
 
Dear friends and mentors,

I am about to begin my first project with a DVX100A overseas where I intend to shoot 16:9 at 25p (PAL). I have decided against the anamorphic adapter due to the limitation in focal length and in order to facilitate the use of other lens adapters. This leaves squeeze mode as my next best choice. My questions are as follow:

1. I understand that 16:9 squeeze mode enables a superior image on this camera, and I am committed to this aspect ratio. However, I intend to broadcast the finished product in parts of the world where 16:9 broadcast standards and TVs do not yet exist. I always assumed that when output on 4:3 TVs a 16:9 image is automatically letterboxed. Is this true? If not, what are my options?

2. Certain products, such as the 16:9 viewfinder adapter, panasonic 7" portable monitor, and 16:9 playback adapter for monitors, seem to suggest that while in squeeze mode the viewfinders on the DVX100A are unable to display the uncompressed image. If this is true, what is the best course of action?

My goal is a finished product that will meet both US/European 16:9 broadcast standards and the traditional broadcast standards of the CIS and Middle East.

I greatly appreciate any of your thoughts on these matters.

Barry Green August 1st, 2004 05:05 PM

Re: to squeeze or not to squeeze
 
Quote:

I always assumed that when output on 4:3 TVs a 16:9 image is automatically letterboxed. Is this true? If not, what are my options?
Not true. A 16:9 image will be vertically squished (as if someone had pushed the sides in and stretched the top and bottom out) on a 4:3 TV.

If you're playing your 16:9 image from a DVD, all DVD players can do automatic letterboxing. If not playing from a DVD, it'll look squished.

Your only option is to render a "letterbox" version from your NLE, for display on 4:3 TV's (i.e., un-squish the image in post).

Quote:

seem to suggest that while in squeeze mode the viewfinders on the DVX100A are unable to display the uncompressed image. If this is true, what is the best course of action?
True. Your course of action is to either use one of those devices, or just get used to composing the squeezed image. It's not a drastic squeeze -- unlike film anamorphics, which compress the horizontal space at a 2:1 ratio, the video squeeze is only 1.33:1, which isn't too dramatic. But if you must see the image in its full 16:9 shape, either you use one of the above-mentioned devices, or you can try this cost-free trick: just swap to "letterbox" mode to preview the image in its proper composition, then swap back to "squeeze" mode to record it.

Boyd Ostroff August 1st, 2004 05:14 PM

Burning the finished video to DVD might make sense in your case. As Barry notes, the DVD players will perform automatic letterboxing during playback. From what I've also read, DVD players sold overseas are multi-format and can be used with either PAL or NTSC systems.

In the case of broadcast I'd assume that the TV station or network could convert your footage into the correct format from your DV master.

Zareh Tjeknavorian August 1st, 2004 07:59 PM

Thanks very much to you both.

Is FCP 3 able to render a letterboxed version, as Barry suggested for 4:3 sets? Also, is this possible on Premiere (the NLE of choice in Armenia)?

Generally, I am curious what NLE will allow us to work with 16:9 24p/25p material.

Bogdan Apetri August 2nd, 2004 09:27 AM

Another question (I, too, own the advanced 25p model):

When shooting in the squeezed mode, are the focus numbers on the chart (the one that is circulating on the net) still valid? I'm very curious.

I guess Barry has the answer to this. And if he does, thanks a lot Barry for the 37 to 50 numbers - I've been away till yesterday so my thanks comes late.

Barry Green August 2nd, 2004 10:58 AM

The focus numbers do not change when you go to squeeze mode.

Bogdan Apetri August 4th, 2004 07:51 AM

Thanks again Barry.

When I will return to the US late August I will buy the anamorphic guide - I don't own the adapter yet but planning on renting one for a project.

By the way, are there similar charts that you know about (focus, f-stops etc) for the Century wide-angle and especially telephoto adapters? I guess they would be equally helpful - not so much for the wide one since you will tend to stay full wide when shooting with it, but mainly for the telephoto adapter - focus numbers change, and you have to stop down as well.

Barry Green August 4th, 2004 12:13 PM

I know the numbers change for the .6 wide-angle, as I've got one and we always set focus at 24 or 25, which is basically sharp to infinity. Don't know about the telephoto adapter.

Bogdan Apetri August 5th, 2004 03:31 PM

Thanks for the tip Barry!

Always helpful.

Bogdan


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