Filters

The spare JHKs filter set was mounted in the stop wheel. This was done as a preventive measure such that observations with these most frequently used filters is still possible if we have problems with the filter wheels. A spacer was added to the holder of the original J filter to prevent stray light.

With the calibration unit in place, some of the NOTCAM filter have been scanned using NOTCam spectroscopy. See

http://www.not.iac.es/instruments/notcam/filters/

The four narrow-band filters purchased by G. Ostlin have been tested and found to have a severe red-leak. They were dismounted and sent back to the owner.