close-up

[P3D Elliott Swanson <elliott@xxxxxxxxxxxxxxxxxxxx>]

Don,

I think the person responding to your post assumed you had a Nimslo, and
from my reading of your post, you don't and just want to use a Nimslo
mask for a photo shot with a Realist. 

Yes, it will work, but no it won't work. You will probably have enough
horizontal adjustment to get a viewable 3D image (assuming the background
has been masked with posterboard so you don't have visual confusion from
unmatched distance points), but it will be terribly distorted-- the lens
spacing on a Realist won't work for portraits. What you'll get is a
picture that makes someone's face look as though it were a weird contour
map-- a foot and a half deep. 

You can use a Nimslo to get a normally proportioned portrait as the other
person described, using two adjacent lenses. Depending upon how you plan
to do this, a +2 or a +3 diopter correction lens across both Nimslo lenses
will work. Sharp focus for a +3 will be at 12.3 inches, and for a +2 at
17.3 inches. If you use a Cokin "A" cu lens, you can set it to cover the
Nimslo lenses and the finder to see what you're doing. You can use the 
illumination from the bottom flash on an Nimslo Optilite Flash (point the 
main flast straight up in the air-- you're too close to use it).