**Sirius Optics is still open for business. As the situation is changing on a daily basis, check our website for the most up to date information.**

Visit this page for updates on the measures we are taking to combat COVID-19.

Starting Monday 27th April we will be introducing new shop hours and will open from 10am to 5.30pm Monday to Friday and from 9am to 2pm Saturdays. Closed Sundays.

Sirius 1.25in 15mm Plossl Eyepiece

More Views

Sirius 1.25in 15mm Plossl Eyepiece
AUD $39.00

Availability: In Stock

OR Download PDF


The Plössl is an eyepiece usually consisting of two sets of doublets, designed by Georg Simon Plössl in 1860. Since the two doublets can be identical this design is sometimes called a symmetrical eyepiece. The compound Plössl lens provides a large 50° or more apparent field of view, along with relatively large FOV. This makes this eyepiece ideal for a variety of observational purposes including deep-sky and planetary viewing.

The chief disadvantage of the Plössl optical design is short eye relief compared to an orthoscopic since the Plössl eye relief is restricted to about 70–80% of focal length. The short eye relief is more critical in short focal lengths below about 10 mm, when viewing can become uncomfortable especially for people wearing glasses.

For a longer eye relief we reccomend considering Long Eye Relief Eyepieces.

Additional Information

Specifications No

Product Tags

Use spaces to separate tags. Use single quotes (') for phrases.