The MS-100, 100-1000X Microscope is an intermediate level Biological Microscope that is ideal for a high school or university student, hobbyist or technician. The Microscope has a monocular head, at 45 degree angle for comfortable viewing, and is rotatable 360 degrees for easy sharing of the specimen view. The Biological Microscope has both coarse and fine focus knobs to help the user to achieve a sharp focus. LED illumination provides a bright white colored light and also has an intensity control to set the optimal lighting conditions. The Biological Microscope has a filter holder with included blue color filter. The included AC power adapter allows for use internationally without the need for a voltage transformer.