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Old March 22nd, 2004, 08:50 AM   #1
New Boot
Join Date: Feb 2004
Location: Paris
Posts: 13
theorical workflow ?

Hi everybody !

i'm a french guy (sorry for the bad english) working in postprod and i've been wondering about a new technique. I've been using it with my personnal DV camera and it showed very good results.
i'm going to buy a GR-HD1, i hope the result will be good with that cam too.
what do you think of it ?

here the deal (it only works with very high amount of light)

-while shooting (in HD mode) put the shutter in manual mode and switch it to the maximum value avaliable. (1/4000 on my DV). Of course you must also be sure not to have a too low exposure and take care of having no gain at all.
This will give you very sharp picture, with no motion blur at all, wich will be very helpfull in postproduction.

-do you camera move as steady as you can.

-aquire you're move and convert it to a full resolution loseless image sequence. (such as tga or tiff).
in the same time do an export of you're rush in DV so you can edit it in any movie software. (avid xpress pro was the one i had in mind)

-when you're editing is done, use the EDL an aplie it to a compositing software witch can read it and can also work in full def image sequence. (maybe C3 can do that but i'm not sure).
and export again your movie (in image sequence) without recalculating it (i mean only copy the image you need in another place, and rename it proprely.)

-now here is the post prod :
*deartifacting with magic bullet or 55mm after plugin.
*stabilise you're motion with furnace or any stabilisation tool (you should'nt have a probleme since you're movie does not have motion blur)
*color correct and mask aera to add optical blur if there isn't enought.
*do other post you need to add.
*finaly, add motion blur with and appropriate plugin (like reelsmart motion blur for exemple.)

-go back to the editing process to link together all the render.

-retime (using twixtor) and resise the movie depending on what purpose it deserve (i mean for a film : full size and 24p, pal : resize and 50i, internet, ....)

it's only theory but do you think this will work as good as it is already with my personal camera ?

ps: all apologizes again for my bad english
Alexandre Bartholo is offline   Reply With Quote
Old March 24th, 2004, 12:49 AM   #2
RED Code Chef
Join Date: Oct 2001
Location: Holland
Posts: 12,514
If I understand it correctly you are adding motion blur in post
instead of in camera. If so, what's the point? It adds a lot of
extra work. I also doubt whether a post motion blur on a 2D
image (as opposed to a 3D blur) will look the same as the camera

Also using stabilizing software will decrease your resolution
because the software needs to zoom in a little. Better to have
a stabilizer while shooting, if possible.

Rob Lohman,
DV Info Wrangler & RED Code Chef

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Old March 27th, 2004, 12:57 AM   #3
Join Date: Oct 2003
Location: Point Pleasant, NJ
Posts: 437

What is the advantage of this workflow (in a couple sentences)?

Merci bien...
Frederic Lumiere is offline   Reply With Quote
Old April 4th, 2004, 03:51 AM   #4
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Location: Paris
Posts: 13
the aim of this workflow is to obtain best image quality, at the lowest cost, and not so much work.

the shooting phase at high shutter give a sharpen image, so it's esay to track (stabilise) and to create mask to add motion blur. (with a low shutter, you would get so much motion blur that the post prod would take years to give a good result)

the editing part is not interresting as there are software that can edit directly the HD mpeg2 without conversion. (but in the end that make the process a little more easy).

i'm going to buy the cam so i would be able to post a link to a image done with that workflow.

(arg un francais, il faut qu'on se rencontre et que je vois ta cam !!!!)
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