Note: Eyepiece not included; available separately, with optional illuminator.
The William Optics 50mm f/4 finder scope with 90° erecting prism fits perfectly on your William Optics and other telescopes. You may already have a favourite 1.25" eyepiece to install, and so the finder is offered without an eyepiece. Its 5.7° field, when paired with our optional 24mm focal length eyepiece (E-WA24) and reticle illuminator (E-IR), will make finding that faint star a cinch.
Fully multi-coated optics deliver maximal brightness and contrast. The Amici prism delivers an upright and non mirror-reversed image. The helical focuser accepts standard 1.25" eyepieces.
The main tube diameter is 54mm, and the dewshield diameter is 58mm. Nylon-tipped screws avoid marring. The tube is white powder coated. The length is 220mm and the weight is 620g.