Thread: Binocular cleaning

We recently were given a zeiss 8x30 set if oldish binoculars. When I had a look thru them they gave a very poor detail somewhat dim and poor light detail. The exterior lenses look ok but looking from objective to ocular I can see dust etc inside. The clarity does not equal even a basic scope. Can these be restored or are they not worth the effort? I am guessing about 30 years old but outwardly in very good condition. If they can be retored optically then by whom and at what cost? Would they ever be as good as more modern steiners etc?