Glossary > Telescope accessories > General > Series > Omni
Glossary | Telescope accessories | General | Series | Omni
Inexpensive Plössl eyepieces, the ideal addition to every entry-level telescope.
Due to their four-lens design, Plössl eyepieces cause almost no chromatic aberration. Some very simple telescopes are offered with three-lens or even two-lens eyepieces, which often cause significant chromatic aberration and loss of contrast. An eyepiece from the OMNI series is therefore a very good and inexpensive addition to every entry-level telescope.