Abstract: Many samples (inorganic and organic) have magnetic properties. This adaptor which is comprised of an electromagnet and a sample holder (slide) can be directly mounted on a standard microscope (upright or inverted). The magnetic field is uniform across the sample and can be modified (due to the electromagnet design). The mount allows changing the field while simultaneously imaging the sample. Notably, the universality of the adaptor design will allow it to enable a wide range of investigations, impacting numerous fields.