How anamorphic focus without diopters.
OM 24mm f2.8
Nikon 50mm f1.8
Hypergonar 35mm projection lens.
50mm work well from infinite to close focus.
24mm well just for close focus,infinite vignetting.
(mump is so noticeable)
If all these anamorphic adaters have been designed to close the cylindrical lens to each other,we don´t need diopter!