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+--- Thread: Custom Frame Size - Panasonic GH4 (/thread-4050.html)
Custom Frame Size - Panasonic GH4 - TogTobias - 03-27-2016
Hi everyone.
The Panasonic GH4 specs are as follows when set to 1920x1080P. In this mode there is NO cropping of the native image sensor.
Aspect: 4:3
Sensor: 17.3mm x 13.0mm
Video Size: 35mm
When I put these measurements into FF3D and set up prime lenses for 12mm, 14mm, and 25mm I find that the image is not consistent in FF3D with the real world.
I took physical measurements of a room and its windows. Top to bottom, side to side, depth, window measurements (from ceiling, from floor). I measured the placement of the camera distance and lense height for a test image. I then built a set inside FF3D that fit the exact measurements of my test room.
I find that FF3D seems to add a solid 2 feet or more in the top and bottom of the screen. The left and right of the image seems to be only off by about 2-3 inches of the real life camera image. Any ideas as to why this is happening and how to really lock in FF3D to be exact?
Re: Custom Frame Size - Panasonic GH4 - TogTobias - 03-27-2016
Figured this out. Turns out that in video mode the GH4 switches over to 16:9 (duh). In FF3D the 16:9 aspect ratio has to be selected from said drop down when setting up the custom frame size. After doing that, the images are identical.
I hope my mistake will help the next person set this up correctly. Happy Pre-Vizing!
Re: Custom Frame Size - Panasonic GH4 - Innoventive Software, LLC - 04-18-2016
Glad we could help... :0