The subject self-build a telescope, at a certain point of its progression it leads to make concatenated choices, where the pupil of the eye conditions the determination of the minimum magnification with an eyepiece "telescope finder" or wide field; from which it is derived the design of the full light field" (Field Of View) be prepared, and then the
With the previous article we saw the mirror 200F6 working with parabolization's corrections derived from five successive retouch actions and following Foucault tests controls. With this article we will see the remaining 5 tweaks that will bring us to the end of the mirror processing. Obviously, this continues to be a realistic simulation of the cases in which
Now that, with previous articles we did a little 'light on the road to complete the construction of a mirror, we walk that way "that becomes increasingly narrow and challenging" parabolizing slowly with a slow progression of quality. Obviously this is a simulation of what would happen in reality, but it is
WHY’ STUDY WHAT MANY SOFTWARES OFFERS’ READY TO USE The study of the Foucault test results is very important in order to be able to evaluate the advice provided by the software prepared for this calculation independently and well. Nobody is perfect and even programs for these calculations are, while he is able to guide
Work characteristics - Aggregates - granulometric Sequences - Traceability of abrasives to achieve mirrors for telescopes. CHARACTERISTICS OF WORK: As already mentioned in other articles relating to the construction of mirrors for telescopes, current amatorial making of such an object provides a raw disc of glass that go to constitute the mirror, is rubbed
The machining of a mirror for the telescope provides that a raw glass disk which will constitute the mirror, He is rubbed with its center against the edge of a second glass disc forming tool function, with the interposition of abrasive carborundum wet. The abrasive used for the heavy initial work roughing or excavation of
As described in the previous article entitled "Preparatory phase to Foucault's test", We have prepared the room, with mirror aligned and testers on their tables and stands, left to acclimatize the mirror to reach the safe thermal equilibrium with the ambient temperature, and now we are ready to begin the first test session. take the
NOTE for those who are going to read this article already having previously read the two articles 1) “FOUCAULT TEST; what is it and how to function” e 2) “Setup del test in Foucault”, it will be interesting to find an answer to the question that arises spontaneously, which is: “But when the test should begin to perform
The TEST AMATORIALI The need to perform the tests on the optical processing in, typically with parabolic reflective surface for Newtonian telescopes, It is designed to be able to see them with the presence of any of the relevant mirror surface shape errors, and of these errors get the QUANTITY ', in order to study and apply
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,
