The Olympus DF PLAPO 1X-2 Auxiliary Lens is an attachment specifically designed for Olympus SZX9 stereo microscopes. Here's a breakdown of its key features:

• Magnification: 1x. This means it doesn't alter the magnification of your existing objective lens.
• Application: Acts as an auxiliary lens, likely placed between the objective and the microscope body.
• Purpose: There are two main possibilities:
  • Increase working distance: By adding a lens element, it might extend the working distance between the objective and your sample. This provides more space for manipulation of tools or allows for thicker specimens.
  • Improve image quality: The PLAPO (Plan-Apochromat) designation suggests high-quality optics. This lens element could potentially correct for aberrations and improve image sharpness or resolution.

Without additional information, it's difficult to say for certain which function is primary. However, given the 1x magnification, increasing working distance seems more likely.

Here are some additional details to consider:

• NA (Numerical Aperture): The mentioned 0.10 NA refers to the light-gathering ability of the lens system it's used with.
• WD (Working Distance): If you can find the working distance specification of the SZX9 objective you plan to use this with, you can potentially calculate the total working distance when the auxiliary lens is added.

Overall, the Olympus DF PLAPO 1X-2 Auxiliary Lens offers additional functionality for your Olympus SZX9 stereo microscope, potentially improving working distance or image quality.