Accessory · MSRP $137
William Optics 1.25" 90° Erect Prism for Cat 51 WIFD
Key specifications
| Accessory type | Other |
|---|
All specifications
| Interface | 1.25 inch eyepiece end; Cat 51 WIFD focuser fitting |
|---|---|
| Compatible with | William Optics Cat 51 WIFD |
About
A 90-degree erecting prism taking 1.25-inch eyepieces, made to fit the Cat 51 WIFD's focuser directly rather than slipping into a standard 1.25-inch holder.