Deutsches Optisches Museum

The Deutsches Optisches Museum traces eight centuries of optical instrument making, from medieval spectacles to electron microscopes, and it makes a strong case that Jena has been at the centre of this history longer than anywhere else. The collection is particularly strong on the Carl Zeiss period — the microscopes, cameras, and projection systems that came out of the Zeiss factory in the late nineteenth and early twentieth centuries are displayed with original technical documentation and some of the best explanatory writing of any German science museum.

The museum recently underwent a comprehensive renovation and the new presentation is excellent: clear, well-lit, and genuinely illuminating about how optical technology changed the way humanity sees the world. It sits a short walk from the main university buildings and is easily combined with the planetarium and botanical garden.

things to do museum
A story
Carl Zeiss was an optician who set up his workshop in Jena in 1846. His collaboration with the physicist Ernst Abbe from 1866 transformed lens-making from a craft into a science, replacing trial-and-error grinding with calculated optical design. The Zeiss-Abbe partnership effectively founded the modern optics industry, and the products they developed — microscopes, telescopes, binoculars — set standards that competitors spent decades trying to match.