Window assembly installed in 50mm diameter optical port in vacuum housing lid (lid not included in this assembly), which allows an external objective to be placed close to the center of the sample space. Designed for the Magneto-Optic module and accommodates objectives less than 39mm in outer diameter. Typically used with raised pole tips (sold separately) to achieve optimal field immersion for samples near the recessed window. Allows 5mm to 10mm working distances.

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