Check the listing for details. Olympus U-MBFL3 Reflected Light Brightfield Mirror Cube Module for BX Microscope. Condition: Used, Made in Japan. Listed at 320.00 USD. Olympus U-MBFL3 Reflected Light Brightfield Mirror Cube Module for BX Microscope This includes the optional Neutral Density (ND) filter. If you don’t want this installed, simply remove it. This is used for a high intensity light such as HBO 100 or Xenon. If you are using a halogen, then you are not going to want the filter. The filter is very dark so it passes only a small percentage of the light, 0.5%. Olympus price list Year 2018. $480. Compatibility: Cube is the narrow style for the 6-position turret on the Olympus BX2 and IX2 series (ex. BX41/BX51/IX71, etc) and also retrofits the older 4-position turret on the BX and IX series (ex. BX40/BX50/BX60/IX50/IX70, etc). It will not fit the BX3/IX3 series (ex. BX43/BX53/IX73 etc). Condition: Excellent working condition.