i just made a saddening discovery🙂)
i thought my 6x13 rolleidoscop (similar to the heidoscop here above) would make 6x13 negs or slides with the right frame to frame distance so, slides i can just view as they are, and negs i can contact print in pairs as they are.
But actually that's wrong as each single frame (not each double frame) is rotated upside down by the lens so in order to rotate them back correctly i will have to cut them up into single frames, then re-align them lol
Or otherwise i will print them just upside down backwards- if there's no text i could get away with it?
is this correct or am i making a mistake?
by the way if you look at the drawing i made, crosseyed, you can see the shapes popping out into 3d 🙂