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June 16, 2006
Boujou Test of Nikkor 85mm f/1.4 for Maya
I shot a few frames with my Nikon D200 using my new Nikkor 85mm f/1.4 AF-D lens and ran the images through Boujou 3 to see how it and Maya would see the lens.
I told Boujou that the lens focal length was 85mm, and that the film back was 23.6mm x 15.8mm which is, as far as I could research, the active area of the Nikon D200 APS-C chip.
The free move yielded a nice, well-defined point cloud -- you can easily see the curved chair back and flat wall beyond -- so I expected a lens solve close to 85mm.
Instead of an result close to 85mm, what I got from Boujou was a virtual lens with a focal length just under 50mm.
Maybe long lenses don't produce enough parallax for a closer solve.
Maybe more extensive testing on a longer sequence is required.
Since I intend to combine my Nikon D200 photography with rendered backgrounds from Maya and Maxwell, I'd like to get a good handle on how to best match lenses.
Posted by digital artform at June 16, 2006 05:25 PM