With the William Optics 45° Amici prism you get an image that looks exactly as it does in real life. Straight. Not rotated. Not inverted. You point your telescope and immediately see what you're looking at. That feels more natural and makes observing much easier, especially if you're just starting out.


The prism works with any telescope and any eyepiece with a 1.25″ connector. You snap it on, and you're ready to observe. The 45° angle provides a relaxed posture, keeping you observing comfortably longer.
Inside is high-quality BaK-4 glass with a non-reflective coating. That sounds technical, but it simply means that your image remains clear and calm. Light loss is minimal, so details come out better. Useful if you want to view birds, landscapes or the moon without losing focus.
The brass ring clamp holds your eyepiece securely without scratching. It feels solid even when you change eyepieces frequently. The compact design makes the prism light and easy to carry.
So you get a reliable and user-friendly prism that makes your observations instantly more enjoyable.
Specifications
Capacity
| Feature | Description |
|---|---|
| Insight | 45° |
| Telescope connection | 1,25″ |
| Optics coating | Whole |
Details
| Feature | Description |
|---|---|
| Upright image | Yes |
| Horizontally correct orientation | Yes |
| Ring clamp | Yes |
General
| Feature | Description |
|---|---|
| Color | Black / silver |
| Weight | 170 g |
| Type | Divergent optics |
| Design | Amici prism |





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