HDV (1080i) Title is bed size

Arekwp · Post by **Arekwp** » Fri Feb 08, 2008 11:03 pm

Why
Project 1440/1080
video source HDV Sony FX1/Z1

Add title - title visible format 4:3

WHY ??

intersilmultimedia · Post by **intersilmultimedia** » Thu Feb 28, 2008 8:29 pm

I don't understand the question. What exactly is the problem?

Gorf · Post by **Gorf** » Fri Feb 29, 2008 2:27 pm

Arekwp wrote:Why
Project 1440/1080
video source HDV Sony FX1/Z1

Add title - title visible format 4:3

Because 1440:1080 is 4:3

VideoKillers · Post by **VideoKillers** » Mon Mar 24, 2008 9:04 pm

Format DV 720*576 is 4:3 - I'm use my sony vx2100 in 16:9 format.
HDV is 16:9 NOT 4:3.

Devil · Post by **Devil** » Tue Mar 25, 2008 9:20 am

HDV 1080i in 16:9 ratio is 1920x1080, not 1440x1080. Your cam shoots anamorphically in 4:3 to give you the impression of 16:9.

VideoKillers · Post by **VideoKillers** » Sat Mar 29, 2008 11:20 pm

If DV 16:9 visible video source on text window in 16:9 why HDV visible 4:3 ?

Devil · Post by **Devil** » Sun Mar 30, 2008 7:54 am

DV 16:9 is letter-boxed. HDV 1080i 16:9 is 1920x1080. If shot in 1440x1080, it has anamorphic compression, because 1440x1080 is 4:3.

Blame the camera for being 4:3!

Gorf · Post by **Gorf** » Sun Mar 30, 2008 1:45 pm

Devil wrote:DV 16:9 is letter-boxed....

No it isn't. DV is 720x576 or 720x480 regardless of the picture aspect ratio.

Devil · Post by **Devil** » Sun Mar 30, 2008 2:29 pm

Gorf wrote:
Devil wrote:DV 16:9 is letter-boxed....
No it isn't. DV is 720x576 or 720x480 regardless of the picture aspect ratio.

Exactly, that is what I said: it is letter-boxed. If used in 16:9, only the centre 720x405 pixels are used for the image, the rest being black. AFAIK, I don't think DV cams had anamorphic compression for 16:9. Both my high-end cams have letter-boxing (which I never use!) with the reduced vertical pixel use. Actually, I think it is bloody useless!

troppo · Post by **troppo** » Mon Mar 31, 2008 2:01 am

My camera will shoot 16:9 DV without letterboxing. It's still 720x576, it just changes the pixel shape to get the 16:9 ratio.

Devil · Post by **Devil** » Mon Mar 31, 2008 7:34 am

OK, some may have anamorphic compression!

Gorf · Post by **Gorf** » Mon Mar 31, 2008 9:30 am

My 10-year-old consumer Sony and 5 year old "prosumer" Canon both use anamorphic squeeze to yield widescreen.

Which ones letterbox?

Devil · Post by **Devil** » Mon Mar 31, 2008 11:00 am

Both my Panasonic 3-CCD machines do.

Gorf · Post by **Gorf** » Mon Mar 31, 2008 1:26 pm

OK having read up on it a bit, it sounds like it's a setting available on some cameras- you can either use full-frame 16:9 or letterboxed 4:3.

Although full-frame should be better because the whole DV frame is being used for compression, some cameras (Sony was mentioned) introduce edge artefacts when stretching the crop to fit the frame. In these circumstances you should, if your camera supports it, letterbox to 4:3 as the black borders will compress well, leaving more of the bitrate for the actual picture. Otherwise, shoot 4:3 and crop to 16:9 in the editor.

Not that any of this tangent helps the OP at all...

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HDV (1080i) Title is bed size

HDV (1080i) Title is bed size

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