The set of IDAS NBZ filter and Commlite brand filter drawer.
- Commlite drawer is precisely calibrated for the IDAS filter glass thickness. (The native unit is not the right distance when IDAS filter is in place)
- Kit is only available with NBZ filter.
- The filter is specifically designed for the filter drawer. No compatibility with others.
- Other brands of filters possibly creates the optical distortion due to the improper light path.