The BA210, at its core, is a microscope designed to adapt to meet the needs of educators and students in practice, everything and so, with the accessories it has, can be extended to the needs of other types of fields. The basic configuration of the microscope is a combination of Color Corrected Infinity Optical System [CCIS®] optics in both the internal optics and EF-N Plan objectives in an attractive, stable microscope body that reproduces sharp, flat images across a flat field. by F.N. 20mm.