View Full Version : cropping for 185 framing shot 4K 2:1
10-21-2008, 08:49 AM
I am wondering if there are any recommendations for cropping and framing material that was shot 4K 2:1 when the final aspect ratio is going to be 1.85. Basically the framing used in camera was just like 35 mm offset for academy soundtrack. We would like to use red rushes to crop off 440 pixels on the left side of the 4K images and then fit the rest into 1920x1080 prores files.
10-21-2008, 09:58 AM
You can use the Quicktime batch render of R3D Data Manager and simply select the options for letterboxing. With RedRushes, you need to figure out the math and turn on cropping.
10-21-2008, 10:06 AM
I'm afraid the cropping in RR is still a bit buggy.
10-21-2008, 11:43 AM
I know the math i need, but RR crashes when i try and crop. Also, my big question is does the crop affect the 4K 2:1 source file? that is where the math comes in. In a telecine we would crop off and pan over the image before it became 1920x1080. That's what i would like to do for this. I guess I could generate 2048 x 1024 QT files and then crop off the side to generate 1920 x 1080 QT files. That's a lot of time, space and work.
10-21-2008, 11:44 AM
How are other people doing 1.78 or 1.85 Full Frame Height work if the material is captured at 2:1?
10-21-2008, 01:13 PM
If you're on a Mac with OS X 10.5, my free Clipfinder application will let you set the crop rectangle visually and will also allow you to numerically specify any desired aspect ratio. See the Help Pages for details.
Also (and you may of course know this already, but is has confused many people), the crop settings in REDline and REDRushes are relative to the debayer resolution, e.g. if you debayer 4K 2:1 material at 1/2 resolution your "full frame" to crop from would be 2048 x 1024.
10-21-2008, 02:20 PM
Shot in 2:1
For the 35mm 1:85 print, I've kept the width as we always loose anyway 3-5% on projection. We don't even see the blacks on top and bottom. (Though the projectionnist has sometimes problem to adjust the framing).
For the 16:9 video master I've kept the black stripes on top and bottom. (I like this framing:-) )