Thank you! In the case of these larger lenses projector lenses, their minimum focus distance is around 15m-20m and their maximum focal distance extends past infinity for the focal plane of the camera. Thats why shortening the distance is required for this lens. I recently came by a lot of well preserved yet massive anamorphics for basically nothing in auction, in their current state they are very impractical for filming but since I have so many I can hack away, experiment and adapt.
Shortening the distance between the front & rear anamorphic lens will not only change your squeeze ratio, but you will loose infinity for longer focal length taking lens, because you have changed the afocal arrangement in the original design. You have to be very careful in picking your taking lens. Adding diopter in the front is more universal. :-)
SassySpaceMan got a reaction from Jim Chang in Projection anamorphic adapter 35 NAP 2-2 modified sample video
SassySpaceMan reacted to Jim Chang in Projection anamorphic adapter 35 NAP 2-2 modified sample video