Furthermore, some filters are tunable, allowing observers to take images at several points in the spectral lines.

The telescope mirror can be upgraded in size to 3/4 of a meter with small modification, and even larger with additional adaptions.

[2] Another novel feature of the DOT is the roof which is made of a special polymer fibre which retains its shape after being stretched and does not loosen after time.

Patterning and test installation of this specific skin is done in cooperation with the team of Poly-Ned who made more retractable coverings for telescope structures.

A high UV resistance PVC coated Polyester weave is important for this kind of structuresm, called Textielarchitecture in Dutch.