Look, binoculars are the everyday items which are being used and also for enjoying it, so at some stage in time it will become dirty then you will need to clean it properly. Some casual clothes can easily clean the case covers in your home. But if you are cleaning the lenses, then you must be extra careful because it has extra sensitive and it can be damaged by using some rough clothes. So it’s better to choose brushes for cleaning the lenses. It any large dust is on the glass and not getting removed quickly then you must go for microwave fiber cloth. You must wipe out the lenses very gently and in circular moments. If in case it isn't able to clean it properly then you must go for special cleaning liquid and clean it properly.