Super. That works.
I also looked to see if aladinlite had some attribute for PA, but alas it does not.
Anyway here is the update file.
I set the width to 700px (looks to line up well with the system display) and the height adjusts based on the camera sensor (to the nearest pixel). - note : will not work for sensors with rectangular pixels. (but would seem like a fairly simple addition by adding input for sensor width and height which would create the ratio attribute).
EDIT - it does work with sensors with rectangular pixels now (adjusted to read in micron size of the pixel also so the sensor actual size can be calculated and used for the ratio of image height/width).
sensor.JPG