Inverted Metallurgical Microscope LIMM-A10 Labtron Inverted Metallurgical Microscope features an infinity optical system, polarizer, fixed and rotatable analyzer, DIC attachment and multiple filters. With an ECO infrared sensing system for auto-shutdown and support for bright field, dark field, polarizing, and DIC, this efficient and reliable microscope is ideal for metallography, mineralogy and electronics research.