| Brand | American Optical |
| Microscope Structure | Upright |
| Microscope Type | Compound Microscope |
| Magnification Range | 100X - 970X |
| Viewer | Binocular |
All objectives are compatible with this 160 mm tube length microscope. They are not infinity objectives (infinity objectives are not compatible with the AO Series 4 microscope). Nothing was held back in the manufacture of the AO Series 4 (the AO Series 2 is similar, but without the built-in illumination system in the base).