Rear Screen projection and Red One

[omar robles]

I am going to be filming an indie film in april and I am set on shooting car driving scenes on rear screen projection (i hate green screen, so please dont advise me to shoot it with that) I am going for the classical hitchcock look. Also the rear screen projection work of natural born killers. So at the moment I am researching the logistics of doing this with the red one camera. I have access to a 3500 projector.

If any of you can offer me some insight i would appreciate it.

O

[Cail Young]

Brighter the better.
Make sure you can set the colour temperature to match whatever you're lighting with.
Try slightly defocusing the projector if you're seeing the "screen door" effect.

[David Rasberry]

I am going to be filming an indie film in april and I am set on shooting car driving scenes on rear screen projection (i hate green screen, so please dont advise me to shoot it with that) I am going for the classical hitchcock look. Also the rear screen projection work of natural born killers. So at the moment I am researching the logistics of doing this with the red one camera. I have access to a 3500 projector.

If any of you can offer me some insight i would appreciate it.

O

More than just color temp involved. I don't know how a Red will react, but shooting stills of conference rooms we install for record I white balance the camera to the room, or in your case the scene lighting, then go into the projector setup menus and adjust the RGB balances to match on the camera monitor. Usually winds up looking very weird and unbalanced to the eye, but looks normal on camera. The lamps in most projectors are not true white, nor are the color filters true RGB and camera sensors react to them differently than your eye.

[Vinit Borrison]

Cali is right, Brighter the better, and also the bigger the better - get the largest screen you can if you have a wide shot involving two actors in the front seats. We just did a super tiny job with rear screen pm me and ill send a link. Also try and get as much separation from the back screen as possible.

[Noah Kadner]

Yeah do a google search for the TV series 24 and rear projection. They have it down to an art. I believe they currently shoot the background plates with an array of Canon 5D Mark IIs and/or Sony video cameras.

Noah

[omar robles]

The owner of the place that rents out projectors advised me to shoot front screen projection as opposed to rear screen. He said the image softens from projecting the image through a screen. Does them seem right to any of you?

David can you please provide me a link to show your rear screen clips.

thank you

o

[Cail Young]

Yes, the image softens but unless you put the projector where the camera is you can't front project without having to correct for perspective distortion. (You also risk projecting onto your foreground). As long as you have a nice screen you'll be fine. This is why you need a really bright projector.