In V-Ray 3.60, supposed to be released soon, focal distance will be “animateable”.
Focus distance can’t be linked to view changes in Rhino but maybe there will be a way to script this when 3.60 comes out.
FYI, in the upcoming Rhino 6 (i.e. current BETA) focal settings can be saved with SnapShots, and furthermore is already animatable with Bongo 2 for Rhino 6
Either Rhino adds the missing camera properties like aperture and shutter speed, and they are recorded with view changes and can be recalled with Named Views…
Or V-Ray adds an editable setting in their Batch render tool where we could define these properties.