lens settings
I'm sure that the lens scaling in 3DS 1.0 is wrong. We're going to be
changing it in 2.0 to be consistent with the way Ashade does it.
You're correct about what 3DS means by FOV… it's the distance from the
upper-left to lower-right corner. We got our original numbers from a Canon
lens chart, but it turns out that the chart we were using was either wrong
or we interpreted it wrong. Whichever… it's fixed in 2.0.
– G