Barlow Lenses and Focal Reducers

Simply, it's a concave (negative) lens placed between a telescope objective and eyepiece to increase the magnification, usually by two or three times. The negative lens reduces the angle of convergence of the light cone, effectively making it appear to the eyepiece that the primary has a longer focal length. It was invented in the early1800s by English physicist Peter Barlow (1776–1872)

Low budget Astrophotography

Astrophotography may sound to be a huge step for beginners and is only reserved to professionals who spend years and years in this hobby and with quite expensive gadgets. As a matter of fact it needs good experience, but you will educate yourself with trial and error time after time, but to be honest, it's very tricky and maybe impossible to have results like the powerful high-end imaging devices, especially when imaging deep sky objects, but with cheaper equipment you can create decent images if you know how to tweak'em to the limits, now we will see how it's done.