Simple collapsible, pop-up light or Dew shield for dobson telescopes

The precautions needed to be taken in the nights of stargazing are notoriously two: The shield of any stray light that could be inserted in the optical observation path, The isolation of the inside of the telescope than the outside air currents that would promote the formation of dew condensation on the primary and secondary mirrors. There is also a third trick,

Increase the targeting precision of digital circles (or “Go-To”), del Dobson, with three large adjustable feet to ... 5 euro.

This article is dedicated to those who like me, know how well maybe their learn star hopping, and comfortable pointing in public star partyes is, when sometimes make use of the convenient digital circles passive pointing, or possess telescopes “Go_To”, and therefore knows that, in order to maximize the pointing accuracy, needs to put Dobson telescope in perfect horizontal "air bubble" level . The operation