Just wondering how far I can go if I decide to "detail" clean my old pair of Japanese Canon 7x35 porros. I am new to this hobby and while I see no issues with fog, fungi, mold or anything all I have done to clean up this old pair of binoculars is clean the glass with cleaner and a soft cloth. Is there anything someone would recommend as a guide as to how to properly clean an old set of vintage binos? I see I could screw off the parts on the large end and have tightened all screws but nothing more at this point. Any suggestions as how to lubricate or properly clean things would be appreciated.