The Y-FL attachment allows you to add fluorescence to any Nikon E400 or E600 microscope. This arm installs between the binocular tube and the microscope stand with the provided bolts - no alignment. It has a 4 position slider to accept filter cubes as well as 3 different strength ND (ND4, ND8, ND16) filters to adjust illumination intensity. Also includes shutter mechanism and field diaphragm. In order to have a functional fluorescence microscope you would need to add an illuminator and filter cubes which are not included with this part. Serviced and tested on E400 stand with excellent results. All mechanical parts function smoothly.
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