(question) a real life special effects sequence at DVinfo.net

David Cummings · June 2nd, 2006, 03:44 PM

I have a question for some of you more technically savy people. I had this really awsome Idea for a sequence I want to do that involves two cameras spaced 4inches apart (focused on the same object with multiple jump cuts back and forth spaced only frames apart in the timeline. I want to apply the idea of stereo photography to video to create a 3d "trippy" kind of image. my problem is that I have two completely different cameras and I need a way to measure the focal legth to match the cameras exactly. Is there some kind of rig or otherwise that I can set up to make sure the focal legths are matched and that both cameras are focused on the same point? The physical position of the cameras is not as important and just happens to be the easiest thing to adjust. Go figure :)

thanks, Dave

Bill Hamell · June 2nd, 2006, 04:09 PM

David,

The first thing I thought of was a low-tech solution.
Use a monitor with A and B inputs set-up one camera on the A input, then lay some tracing paper over the monitor, mark some key areas, switch to the B input match the camera to the marks you made.

Bill

David Cummings · June 3rd, 2006, 04:38 AM

thats a great idea. beats the hell out of my alternative... I was going to upload the some frame grabs and layer them in photoshop. Thanks, you just saved me about 3 hours. haha

June 2nd, 2006, 03:44 PM	#1
David Cummings Regular Crew Join Date: Mar 2006 Location: denver, colorado Posts: 80	(question) a real life special effects sequence I have a question for some of you more technically savy people. I had this really awsome Idea for a sequence I want to do that involves two cameras spaced 4inches apart (focused on the same object with multiple jump cuts back and forth spaced only frames apart in the timeline. I want to apply the idea of stereo photography to video to create a 3d "trippy" kind of image. my problem is that I have two completely different cameras and I need a way to measure the focal legth to match the cameras exactly. Is there some kind of rig or otherwise that I can set up to make sure the focal legths are matched and that both cameras are focused on the same point? The physical position of the cameras is not as important and just happens to be the easiest thing to adjust. Go figure :) thanks, Dave

June 2nd, 2006, 04:09 PM	#2
Bill Hamell Major Player Join Date: Aug 2004 Location: Mystic Ct. Posts: 477	David, The first thing I thought of was a low-tech solution. Use a monitor with A and B inputs set-up one camera on the A input, then lay some tracing paper over the monitor, mark some key areas, switch to the B input match the camera to the marks you made. Bill __________________ Cinematographers Bring Shadow To Light

June 3rd, 2006, 04:38 AM	#3
David Cummings Regular Crew Join Date: Mar 2006 Location: denver, colorado Posts: 80	thats a great idea. beats the hell out of my alternative... I was going to upload the some frame grabs and layer them in photoshop. Thanks, you just saved me about 3 hours. haha