Levenhuk Blitz 60 BASE Telescope

Max theoretical magnificationTheoretical magnification. It depends on the eyepiece used, and eyepieces are interchangeable, which gives the possibility of obtaining different magnifications. It can be calculated by dividing the focal length of the objective lens by the focal length of the eyepiece used. The magnification given is the maximum obtainable in the configuration in which the telescope is supplied; it does not take into account the additional magnification that may be obtained with a Barlow lens or image reverser. It does not take into account the limitations on magnification generated by the Earth's atmosphere and the objects within it.

Średnica zwierciadła lub obiektywu (apertura) – decyduje o zdolności rozdzielczej sprzętu oraz zasięgu obserwacyjnym. Większe instrumenty dają zwykle większe możliwości obserwacyjne, lepszą jakość obrazu i większą ilość szczegółów.

Focal length [mm]
The distance between the focus of an optical system and the focal point of the optical system. It affects the magnification given by the optical system and the lens speed.

The ratio of the focal length of an optical instrument to its diameter. It is a constant that determines the amount of light reaching the focal point of the main lens or mirror. In practice, the smaller the value of f, the better and more accurate the image we get.

This is the smallest angular distance between two point objects at which they are still visible as two separate objects. Expressed in seconds of arc.

Barlow’s lens
A scattering lens placed in the focuser of a telescope before the actual eyepiece. It gives the effect of extending the focal length of the lens, which for visual observation gives the effect equivalent to using an eyepiece with a shorter focal length. Simply put - higher magnification.