TM 5-5575-319-14
e . N e g a t i v e d i s p l a c e m e n t p a r a l l e l t o t i l t a x i s . W h e n r e c t i f y i n g i n a r e f e r.
ence plane that is tilted, it is necessary to move the negative right or left of the
r e c t i f i e r s c e n t e r .
7 - 3 .2
D e t a i l e d .
The rectifier is designed to automatically retain a sharp focus throughout its
magnification range, regardless of the angle of tilt. Sharp focus is achieved only
when the extension of negative, lens, and easel planes intersect at a common line
and if at least one image point is in sharp focus.
7-8