Mamiya PRO 645 Instructions Manual page 39

* Cold Temperature Photography
a.
Use a fresh lithium battery
b. Utilize the External Battery Case accessory.
(Permits battery to be placed inside clothing).
Batteries that fail at low temperatures may still
be used at normal temperatures. However fre-
quent temperature changes shortens battery life.
c. Avoid sudden temperature changes when going
indoors, to prevent moisture condensation on
camera and lenses. (Also important for film
protection).
Things to Watch
* When using the AE Prism Finder FE401
When using this finder it is imperative that the
Film Speed Dial on the Roll Film Holder is prop-
erly set for the ISO number of the loaded film, as
it interfaces with this finder. If not done, wrong
exposures may result.
*When the mirror is locked in the up position.
* The Focal Plane Shutter Curtain may be dam-
aged if the camera faces strong light sources,
especially the sun. Return
sition or cap lens
38
mirror to normal
to
prevent such damage.
po-