10-2-1 Cleaning the Viewfinder
Use a dust blower to clean the CRT screen and mirror
inside the viewfinder barrel.
Clean the lens and protecting filter with a commercially
available lens cleaner.
Never use organic solvents such as thinners.
Disassembling the eyepiece for cleaning
Detach the eyepiece from the viewfinder barrel.
For the detaching procedure, see 9-2-6 "Detaching
the Eyepiece" on page 163.
Remove the eyecup from the eyecup holder.
Remove the protecting filter, together with the packing
ring, from inside the eyecup holder.
Detach the protecting filter from the packing ring.
Depending on the temperature and humidity, the
protecting filter may mist because of vapor or your breath.
To ensure that the viewfinder is always clear, replace the
protecting filter with a fog-proof filter (Part No. 1-547-
341-11, not supplied).
Fitting the fog-proof filter
Replace the protecting filter on the packing ring with the
Be sure to correctly assemble the fog-proof filter, the
packing ring, and the eyecup so that the reassembled
eyepiece is waterproof.
When cleaning the fog-proof filter, wipe it very gently
with a soft cloth to avoid damaging the anti-fogging