Hmm, I don't think I'd be interested in World 3D's method of creating lenticular prints, plus, World 3D is not really for the individual looking for a print or two. One must have a minimum order of 1000 pieces or $2000. World 3D makes promotional items for companies.
Snap 3D, as far as I know, does not deal with digital files for the making of their lenticular prints. They use the old 1980's Nimslo system.
I'll just send the one roll of exposed Fuji Superia 400 film I shot with my Nimslo to Snap 3D and will let you know of the results. I've already had the film processed locally. Once the film gets to Snap 3D they'll take 4 to 6 weeks so patience is needed. I'll be ordering 8x10 and/or 11x14 prints.
Here is Snap 3D's site:
http://www.snap3d.com/index.htm . They're in Toronto.
I said whats that?
Lenticular - Lenticular images are digital files that have been specially prepared and then printed onto a lens material. This material is a special plastic made up of lenticules, hence the name lenticular printing. The image, viewed through the lenticules, appears to move as it is turned creating dramatic animation or depth.
http://www.world3d.com/faqs.html
John Powers