will be shooting a collision. one take. at DVinfo.net

Go Back   DV Info Net > The Tools of DV and HD Production > Open DV Discussion

Open DV Discussion
For topics which don't fit into any of the other categories.

Thread Tools Search this Thread
Old October 2nd, 2004, 05:15 AM   #1
Major Player
Join Date: Aug 2002
Location: Brooklyn, NY
Posts: 642
will be shooting a collision. one take.

hi. i am going to shoot an experiment where a truck will hit a metal post driving at 80 kmph (about 50 mph). the collision will be shot with 4 cameras.

1 - a full shot of the collision, shot at a 90 degree angle from the collision course.
2 - close-up of collision, same angle as 1.
3 - from behind the post, camera set on ground, truck moving towards camera.
4 - collision shot from high angle, camera mounted on some kind of tower above the post

the only camera which will be operated during the experiment is camera 1. all other cameras will be mounted and set in their positions and then monitored over the monitor.
the experiment will be taking place around noon, in a desert landscape, on a dirt road, which we will wet down before hand in order to minimize dust. the weather will probably be hot, sunny, close to no clouds.

i want to hook up all four cameras to a single monitor, with the option of toggling the monitor from one camera to another.

this is a one take shoot. no second takes! the truck is attached to a special vehicle which begins to accelerate. when the special vehicle reaches 80 kmps, it detaches itself from the truck and stops while the truck continues on it's collision course. a small special effect explosion will take place when truck hits post.

i've never done anything quite like this and would be happy to hear your comments, suggestions, tips, etc.

Adi Head is offline   Reply With Quote
Old October 2nd, 2004, 10:28 AM   #2
Inner Circle
Join Date: Feb 2004
Location: switzerland
Posts: 2,133
you miss a view from the truck itself
Giroud Francois is offline   Reply With Quote
Old October 2nd, 2004, 10:29 AM   #3
Major Player
Join Date: Dec 2002
Location: Northridge Ca
Posts: 734
If you have the money, a disposable camera locked off mounted on the dash would provide an interesting view. Would be great if you could mount it in a heavy duty box to provide protection, with only an open port to shoot through.

You might consider shooting at a high shutter rate to get some interesting slow motion effects in post. With the full sun you should have no problem with the high shutter rate.

When you are panning an object going at high speeds, and the object stops quickly, there is a tendency to overpan past the point of impact. Be sure to practice panning the camera, and stopping the pan quickly. (A way to aid this is to have a "spotter" stand next to the camera operator and call out, "Five, Four, Three, Two, One!", and zero is the collision, as the car speeds along. This way the operator has a good idea when to anticipate the hit.)

Again, with the camera that is panning the car, you need to decide; should the camera be set on a focal length and just pan, or, should you start tight on the car and widen as it gets closer to the post (more tricky)? My inclination would be to set your size on this camera for the hit at the post, and just "hard lens" the pan. No zooming. If you let the operator zoom, he may choke a bit and he could end up too wide or too tite.

If it was easy, they'd get a relative to do it.
Wayne Orr is offline   Reply With Quote
Old October 2nd, 2004, 01:17 PM   #4
Major Player
Join Date: Aug 2002
Location: Brooklyn, NY
Posts: 642
ok, thanks. i'll check out the in-car camera option. any more ideas and/or tips?
Adi Head is offline   Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

(800) 223-2500
New York, NY

B&H Photo Video
(866) 521-7381
New York, NY

Texas Media Systems
(512) 440-1400
Austin, TX

Precision Camera
(800) 677-1023
Austin, TX

(800) 323-2325
Mineola, NY

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > The Tools of DV and HD Production > Open DV Discussion

Thread Tools Search this Thread
Search this Thread:

Advanced Search



All times are GMT -6. The time now is 09:19 AM.

DV Info Net -- Real Names, Real People, Real Info!
1998-2018 The Digital Video Information Network