As part of looking for a possible location of the polarimeter being designed for FIES (see below) several pictures and movies were made of the inside of the adapter, for the first time including the ADC. The movies show all moving mechanisms in the adapter. See for details

A returning issue with mounting instruments at the Cassegrain focus at the bottom of the adapter has been that of the screw holes used to mount the different instruments losing their thread so they can no longer be used. In the long run this might become an issue when too many holes are effected. We are checking if the existing holes can be repaired/modified, and/or if new holes should be made.

Thomas Augusteijn 2013-05-10