I am getting my translations from Maya to nuke via a mel script that allows me to export my translate and rotate channels and import than into nuke and all seems to be working okay. The problem that I am having is one of how to translate the horizonatal and vertical aperatures in Maya I have a HD 1080 (1920 x 1080) scene with a camera set to a film aspect ratio of 1.777 which gives me the folowing settings
Camera aperature 1.679 0.945
focal length 35
which gives me a film gate that matches the resolution gate
But in Nuke when I set up a 3d camera and import the data and set my project to 1080 I have a focal length of 35 but my
horizontal aperature is 24.576
vertical aperature 18.672
interchanging these numbers between applications is obviously not working - my camaera match move is perfect but this is driving me crazy - any help would be great.