William Optics CLA20 is a high-quality, universal cell phone mounting system compatible with most telescopes available on the market. This simple and at the same time extremely well thought out accessory allows not only to significantly increase the comfort of observation, but also to enrich it with an educational aspect during the simultaneous presentation and discussion of the image in the field of view.

The set consists of a William Optics Swan eyepiece with a focal length of 20 mm and a field of view of up to 72 °. Its advanced, five-element optics covered with a full multi-layer coating guarantee that the image displayed on the smartphone screen will always be sharp and contrasting.

The eyepiece and the phone holder are connected by a durable and precisely made aluminum adapter, ensuring a stable mounting of the smartphone.

The most important features of the William Optics CLA20 phone mounting adapter

• compatible with most phones, as well as telescopes and finders (spotting scopes)
• William Optics Swan 20 mm eyepiece with a field of view of 20 ° ensuring excellent image quality and no vignetting
• phone clamp with a wide range of adjustments and a maximum spacing of 85 mm

Technical specifications

• eyepiece: William Optics Swan
• focal length of the eyepiece: 20 mm
• eyepiece field of view: 72 °
• eyepiece optical construction: 5 elements in four groups
• diameter of the eyepiece frame: 1.25 "
• type of eyepiece coating: full multilayer coating (FMC)
• maximum distance between the phone holder: 85 mm
• eyepiece mounting material: aluminum

Elements of the set

• an eyepiece with a field of view of 72 °
• aluminum arm for attaching the eyepiece
• phone holder

guarantee

24 months