Fog-proof filter
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 fog-proof filter.
Detach the protecting filter from the packing ring.
4
For the detaching procedure, see 9-2-6 “Detaching the Eyepiece” on page 151.
2 Remove the eyecup from the eyecup holder.
3 Remove the protecting filter, together with the packing ring, from inside the eyecup holder.
Detach the eyepiece from the viewfinder barrel.
1
Eyecup
Viewfinder Eyecup Protecting Packing
barrel holder filter ring
10-2 Maintenance
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.
Caution
Never use organic solvents such as thinners.
Disassembling the eyepiece for cleaning

Be sure to correctly assemble the fog-proof filter, the packing ring, and the eyecup so that the reassembled eyepiece is waterproof.

Note

When cleaning the fog-proof filter, wipe it very gently with a soft cloth to avoid damaging the anti-fogging coating.

Maintenance 10 Chapter

10-2 Maintenance 167