View Full Version : Cinemascope Format With Dv
neofg 04-13-2006, 11:40 AM Hi all! I have a big big problem...
I shot a short-film next week, and I want to make it in Cinemascope format(1:2.35)...
Now...I shot with a dvx100a in widescreen PAL(720x576)...
What's the resolution of my CINEMASCOPE FRAME? Is it(In letterbox) 720*306?
In what resolution I must to make a mask for my camera, and in what I could make renders for cg?
Help me please buddies...
Thanks...
Francesco G.
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Tagger
04-13-2006, 02:05 PM
personaly i would just tape off the lcd at 1:2.35 if your camera doesnt have build in guidlines. I would just film them as is and later in editing i would make a mask with the same ratio and lay it on top of my project.
That way you have an indication to what your viewable area is, but you still have the chanse to do some vertical adjustments in post if needed
neofg
04-14-2006, 10:10 AM
Thanks...
That's what I will make...Just with dvx100a I have a squeezed vision of the widescreen recording, so I made a widescreen project in an editing's program, I apply bars, I put it on dv and used as reference for the camera lcd.
Now...I would know the resolution to have a right idea of the Cinemascope's area, and that for masking and for renders...thanks again
Tagger
04-14-2006, 07:32 PM
screenformats are an areanorm, not a resolutionnorm. cinemascope is usualy used on movies made on film or high definition digital recording not DV material so there isnt a "resolution" for it. You can do the calculations for yourself and see what you come out. Also depends on what you start from, 16/9 or 4/3 format. If you say that you have 720*306 that could be true, but havnt done the calculations myself.
btw, if we usualy record in a weird format we usualy hang a referencemonitor to our camera and tape it off on there
neofg
04-14-2006, 10:54 PM
Thanks...Yes, I use a widescreen format, and dvx100a show it squeezed...I use a paper mask...
Just I would to know if someone make it before...
Thanks for your help man...
Integrity
04-15-2006, 03:27 AM
Don't forget about the pixel aspect ratio.
576 / 9 * 16 = 1024
1024 / 2.35 = 435.74468085106382978723404255319 (~436)
So your frame resolution with the ratio applied is 720x436 letterboxed in a 16:9 PAL frame. But if you're working with square pixels this won't matter.
I've read that the formal display ratio is 2.39 and not 2.35, but I'm not sure if everyone follows this.
ZaKKoS
04-15-2006, 10:54 AM
Non dovresti registrare con il widescreen attivo. il più delle volte per ottenerlo le minidv semplicemente dimezzano la risoluzione verticale. mantieni l'opzione disattivata e piazza due cartoncini o del nastro di carta per farti da guida con la composizione sul monitor di controllo e poi taglia le parti in eccesso in post. in questo modo come già diceva tagger avrai dell'aria in testa con cui poter fare degli aggiustamenti verticali. Il fatto che tu lo veda distorto è perché la videocamera probabilmente ora usa pixel rettangolari infatti una volta importato il materiale in premiere o quello che è lo vedrai correttamente.
[you shouldn't record with the widescreen option turned on. Most of the times to achieve it dv cameras simply use half vertical resolution. Keep the option turned off and place a couple of cardboards or paper tape on the field monitor as a guide for the composition and cropt it later. In this way, as Tagger already said, you'll have some material to do some vertical shift if needed. You see it squeezed probably because the camera now uses non square pixels but when you'll import it in a widescreen project in premiere, or what program you use, you'll see it correctly.]
For cropping it anyway is a simple equation (always use your horizontal resolution):
16:9 => 720:16=x:9 -> (720*9)/16 = 720x405
2.35:1 => 720/2.35 = 720x306
neofg
04-15-2006, 10:56 PM
ZaKKoS, you are great! Thanks to Integrity too...
I use (I said it before?:rolleyes: )Panasonic DVX100a, and it's CCD is a native 16:9...So if I record it in 4:3 I loose information...If I record in 16:9 and then resize in letterbox(or, like now, in cinemascope) I give more quality...
Thanks all...Suggestions are ever welcome...
Ciao Zakkos e buona arte!
Integrity
04-16-2006, 02:40 AM
You can do it either way. You can make a 720x306 white frame for your set up of masking on the LCD and put it into a PAL widescreen project into Premiere...but you need to make sure that it's interpreting it as square pixels. Or you can create a 720x436 frame and put it in the same kind of project and have it interpret it as the PAL widescreen pixel ratio. I was just doing it this way because then the mask file's pixels will be native to the PAL's pixels.
Tagger
04-16-2006, 11:03 AM
ZaKKoS, and it's CCD is a native 16:9...So if I record it in 4:3 I loose information...
the fact that you lose resolution isnt because of your CCD, cause it's not true that you lose information recording in 4/3.
Your camera will record 720*576 no mather what, it'll just change pixel aspect ratio's wether you go to 4:3 or 16:9. Your CCD records a higher resolution then that so it can handle both and and internaly downscale it so you wont lose 'information'.
You will have to mask more afterwards and in your editing you'll lose more of your vertical then you would in 16/9 so it might be more productive to work in a 16:9 project
neofg
04-27-2006, 03:36 PM
Thanks Integrity...
Tagger...I know that it change pixel ratio, but it's not the same to record cinemascope in a 4:3 frame , that is like a letterbox...and a native 16:9 frame...Just for the reason that all two frames have the same resolution...
ashrass99
05-13-2006, 09:19 PM
Why dont you shoot normally and clip inside the computer...so you have more options to play and also run the movie without clipping too.
curious_69_george
05-21-2006, 06:15 PM
ZaKKoS, you are great! Thanks to Integrity too...
I use (I said it before?:rolleyes: )Panasonic DVX100a, and it's CCD is a native 16:9...
That camera does not have native 16:9 CCD's. It has 4:3. The squeeze mode in the camera is an aspect ratio conversion (0.9 --> 1.22) that changes the way the record device picks up the image. It yields better resolution if going to wide screen then shooting in 4:3, then cropping.
The best way to go would be to rent (or purchase) an optical anamorphic adaptor. That will give you the best resolution, when shooting for widescreen with that camera.
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