Superior in design and in performance, the B1 Series incorporates a wide range of features designed for university and laboratory use. Superb optical clarity and reliable mechanical engineering assures years of top performance. Choose from two grades of objectives: Standard Achromatic lenses deliver excellent clarity and normal flatness of field, while the ASC Achromatic Super Contrast objectives deliver extra contrast to the image. Combined with precision coaxial coarse and fine focusing adjustments, the B1 models are exceptionally high quality microscopes available within a tight budget.