The ZEISS Additional Lens 5 APO 2.0x FWD 35 mm is designed to expand the magnification range and optical performance of the Stemi 508 microscope. With apochromatic correction, it delivers outstanding image sharpness and accurate color reproduction. This attachment lens increases the total magnification range to 12.5x–100x while maintaining a practical working distance of 35 mm.

The ZEISS 0.3X FWD 287 mm front optics system is designed to significantly extend the working distance while reducing magnification in compatible stereomicroscopes. With an extended working distance of 287 mm, it allows comfortable handling of large specimens and tools beneath the microscope. This front optics system enhances flexibility in industrial, laboratory, and educational applications where additional space is required.

The ZEISS 0.4X FWD 211 mm front optics system is designed to reduce magnification while significantly increasing the working distance in compatible stereomicroscopes. With a working distance of approximately 210–211 mm, it allows comfortable handling of larger specimens and tools beneath the microscope. This front optics system enhances flexibility in laboratory, industrial, and educational applications that require additional space and overview.