The Digital Reflected-Light Microscope and Graphene Mapping System is an award-winning low-cost scientific instrumentation project developed by Kilian Günthner to make advanced materials research more accessible. High-quality reflected-light microscopes capable of identifying graphene and other ultra-thin materials typically cost thousands to tens of thousands of euros, placing them beyond the reach of many schools and early-stage researchers. Kilian designed a system using custom optics, calibration hardware, and software to retrofit standard microscopes into tools capable of visualizing graphene flakes. The project won first prize in Technology at the North Rhine-Westphalia (NRW) state level of Jugend forscht, and was later cited by researchers as an enabling tool for early graphene experimentation.