AAton 35-III, User Manual

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the body. Remove the viewing screen. Clean both upper and lower
surfaces of the screen and reinstall.
5.3.2 Eyepiece
Clean the eyepiece lens, which is the outermost element closest to
your eye, by first blowing the surface with canned air, then cleaning
with lens fluid and a Q-tip. Remove the eyepiece and clean the field
lens, which is located on the inside of the eyepiece, in the same
fashion.
5.3.3 Viewfinder
Do not install the eyepiece back right now. First, look inside the
camera’s eyepiece seat, and locate the two triangular lenses (called
the Pechan prism). Clean these two triangular lenses using canned
air or an air syringe. Then install the eyepiece back.
5.4 MAGAZINE
5.4.1 Exterior
Keep the external surface of the magazines clean by wiping down
with a cotton cloth with alcohol or a mutli-purpose cleaner. When a
deeper cleaning is necessary, use De-Solv-It rubbed into the mag’s
surface with a cotton cloth. Finish with alcohol applied with a cloth
to restore its original finish.
5.4.2 Pressure Plates
The magazine pressure plates should be cleaned of dirt and film par-
ticles by means of a dust-free cotton or chamois cloth. After clea-
ning, run your finger across their surface for a slight lubrication.
5.4.3 Interior / Film Path
Open the door of the magazine and inspect all surfaces on which
the film rides. If any film dust buildup is apparent in the sprocket or
roller areas, use alcohol and a Q-tip to clean. Use a utility brush
Finding the Dirt…
There is a simple means of
locating much of the dirt
within your viewing system.
Look through the viewfinder
with no lens on the camera and
adjust the diopter ring. If the
dust particles remain in focus,
they are most likely located on
either side of the eyepiece. If
the dust comes in and out of
focus as the ring is moved, the
dust is probably located on
either surface of the viewing
screen. Furthermore, if the
dust appears to be on the same
focus plane as the cross hairs of
the viewing screen, it is most
likely on the bottom surface on
the screen and easily accessible.
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