About this product
Part Number: M-GB50
William Optics 50mm f4 guider / finder.
Available with or without the 90º diagonal, which features a 90º erect image prism.
- Fully multi-coated, high quality 50mm objective
- 5.7º field of view
- 54mm OTA / 58mm dewshield diameter
- 1.25" Helical focuser - accepts standard 1.25" eyepieces
- White power coated finish
- Nylon head screws
- Includes guide rings and mounting base
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