Enhance your Zeiss Stemi 305 Series stereo microscope with this high-quality 0.5× objective (Part No. 435263-9050-000) from Spectra Services. Designed to provide a 185 mm working distance and threaded M49×0.75 mount for analyzer integration, this front-optics module transforms your microscope into a more versatile, wide-field imaging platform. The adapter converts a 58 mm mount diameter to 66 mm — ensuring compatibility with standard lighting and accessory interfaces. Its precision optics and stable mechanical fit make it ideal for macro-imaging, industrial inspection, biological dissection, and educational stereo microscopy applications.

Whether you are capturing large-field stereo images or preparing for documentation and quality inspection, this 0.5× optics upgrade adds flexibility and enhanced field-of-view — perfect for labs, workshops, and routine stereo work.

Key Benefits

• Specifically built for Zeiss Stemi 305 Series stereomicroscopes.

• Provides 0.5× magnification with 185 mm free working distance — ideal for macro work, large samples, or wide-field viewing.

• Mount interface M49×0.75 for analyzer, adapter converting 58 mm → 66 mm, enabling compatibility with standard accessories and illuminators.

• High-quality Zeiss optics for consistent, sharp imaging — suitable for industrial inspection, biological dissection, stereo documentation, and teaching labs.

• Allows expansion of your Stemi 305’s versatility — from standard stereo zoom to wide-field macro imaging without losing optical integrity.