Darkfield is far more interesting and often determines the course of action in a case, but it is important to first scan through the sample in brightfield. Brightfield is simpler to work with, so it’s easier to focus the sample and scan through it to select a suitable area. It is also easier to differentiate between the different WBCs and crystals in darkfield. Other than that we rely on darkfield for the rest of the information, so we usually only spend 5-10mins in brightfield and the balance in darkfield.