Cover Glass Grafco® Square No. 1 Thickness 22 X 22 mm

Because of surface tension, the liquid drop alone tends to sit in a thick dome

With a cover glass in place, the drop is flattened out, allowing the clinician to focus with high power very close to the specimen

The cover glass also confines the specimen to a single plane which reduces the amount of focusing necessary

The cover glass also protects the objective lens from immersion into the liquid