The Leica DMi1 enables cell biologists to check and document cell and tissue cultures within seconds. Equipped with LED illumination, it provides constant color temperature with up to 20 years lifetime. The convenient two-hour auto-off function helps reduce energy costs. To improve workflow, phase contrast observation is simplified as the 10x, 20x, and 40x objectives share the same light ring meaning the user no longer needs to match light rings and objectives. If documentation is needed, a configuration with a digital camera connected to the integrated C-mount is available.