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(4) Charging and maintenance instructions
for the nickel-cadmium battery are pro-
vided in a
separat~
sheet. Please read
this carefully, and remember that this
battery must be kept charged at all
times.
(5)
One
set of four penlight cells (or one
charging of the nickel-cadmium battery)
provides sufficient energy for a minimum
of 10 complete films
.
The expendable
penlight cells should be changed annually,
even if less than 10
films
were exposed
.
Always
replace
the
cloth tape across the
battery holder opening as a protection
against leaky batteries.
(6) The
list
on the back cover of this manual
lists applicable batteries for both the mo-
tor-drive
and exposure-control. Beware
especially of miniature non-mercuric but-
ton-celis which have the same dimensions
as the
proper mercury
cells.
These
cheaper button-cells .deliver excessive
voltages, leading to inaccurate
exposure.
Only 1.35-volt mercury cells listed on
page 29 should be used in your LEICINA.
28
The measuring LEICINA
strap
has black dots printed at 4" (10 cm)
intervals
to facilitate critical measurement of short
distances as, for
example,
when making film
titles.
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