Simply put, a Dobsonian telescope is a type of large aperture Newtonian telescope design popularised by John Dobson back in the mid 1960s, and from whom it takes its name. Also referred to as a ...

With the telescope being a Newtonian design, it means the optical system must be collimated to perform at its very best. This can be a confusing and frustrating process for the beginner as it ...

This telescope has a 20-inch mirror and is based on the Newtonian-Dobsonian design, with one big, curved mirror that collects and focuses light, while a second, diagonal mirror reflects it to a ...

Simply put, a Dobsonian telescope is a type of large aperture Newtonian telescope design popularised by John Dobson back in the mid 1960s, and from whom it takes its name. Also referred to as a ...