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Canon VI-L Instruction Manual page 14

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ITTRARED PHOTOGRAPHY
O n
t h e D e p t h - o f - F i e l d
S c a l e Q )
o f
a l l C a n o n
L e n s e s i s t h e l e t t e r " R . "
T h i s i s f o r i n f r a r e d f i l m .
W h e n u s i n g t h i s f i l m , f o c u s i n t h e n o r m a l w a y .
R e a d o f f t h e d i s t a n c e o f t h e o b j e c t y o u a r e f o c u s i n g
o n
a s
s h o w n
o p p o s i t e t h e
D i s t a n c e
I n d i c a t o r
M a r k
o n t h e L e n s D i s t a n c e S c a l e ( 3 ) .
T u r n
t h e
l e n s b a r r e l u n t i l t h e d i s t a n c e r e a d i n g i s o p p o s i t e
t h e " R "
m a r k .
Y o u r
l e n s i s n o w
f o c u s e d f o r
i n f r a r e d p h o t o g r a p h y .

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