Spider and Secondary
The advanced Protostar spider provides for
easy collimation with the included hex wrench. It has wireless dew
removal heat controlled by a switch on the seconday cage.
The 1.37" eliptical flat secondary mirror
minimizes obstruction. It has an enhanced aluminum coating.
The light shroud, of lycra-spandex fabric,
allows airflow to reduce tube currents, while shielding stray light. It
stays in place, opening and closing automatically with the telescope.
The internal rings support the shroud and
act as light baffles to improve contrast.