| Author | Message | ||
     Winfried Rating: N/A |
It is almost impossible to clean a modern focussing screen without scratching it - they are made from molded plastic, and the very fine surface structure gets damaged when applying any tool. I had good results when giving them to my optician to clean them in an ultrasonic bath. The only DIY method I would recommend is to rinse (NOT wipe!!!) a focussing screen with a strong solution of dish washing lotion, and let it dry (with one edge pointing downwards). |