Omegon Amici Prism 45° 1.25″ to 1.25″ Erecting Prism
When using an astronomical telescope for terrestrial viewing, you quickly run into a familiar problem - the image appears flipped, inverted, or mirror-reversed. The Omegon Amici Prism 45° from the Pro series solves this elegantly: thanks to its special optical design, it corrects both vertical and horizontal image reversal, delivering a completely natural, upright and correctly oriented image - exactly as you would see the scene with the naked eye.
Full Image Correction in Both Axes
Unlike a standard 90° zenith diagonal, which only redirects the light path and leaves the image mirror-reversed, the Amici prism uses a roof-shaped optical surface to correct orientation in every axis simultaneously. This makes it the right choice whenever image orientation matters - whether you are watching wildlife, scanning a landscape or observing any terrestrial subject through your telescope.
The optics are fully coated, which improves light transmission and contrast compared to uncoated glass. The result is a bright, sharp image with accurate colour rendition even at higher magnifications.
Comfortable 45° Viewing Angle
The 45° angle strikes a practical balance between comfort and usability. It allows a relaxed viewing posture without straining the neck or back, while keeping the eyepiece at a natural height whether you are seated or standing. This makes it noticeably more comfortable than looking straight through the focuser, especially during extended observation sessions.
What Telescopes Is It Compatible With?
The Omegon Amici Prism fits any telescope with a standard 1.25″ focuser:
- Refractors (lens-based telescopes)
- Schmidt-Cassegrain telescopes (SCT)
- Maksutov-Cassegrain telescopes
- Other telescopes with a rear-facing focuser
Due to its optical path length, the prism is not suitable for Newtonian reflectors, where it would not be possible to achieve focus.
Pro Series Build Quality
The prism body is machined from aluminium, finished in a sleek black-silver colour and weighs 170 g - solid enough to hold any 1.25″ eyepiece securely without adding unnecessary bulk to the setup. A ring clamp is included, providing firm and play-free attachment to the telescope focuser without the need for a separate adapter. Both the telescope and eyepiece connections are standard 1.25″, making this prism a straightforward drop-in addition to any compatible optical system.
Technical Specifications
- Type: Amici erecting prism
- Series: Pro
- Viewing angle: 45°
- Telescope connection: 1.25″ barrel (male)
- Eyepiece connection: 1.25″ sleeve (female)
- Optical coating: fully coated
- Vertical image correction: yes
- Horizontal image correction: yes
- Ring clamp: included
- Housing material: aluminium
- Colour: black-silver
- Weight: 170 g
The Omegon Amici Prism 45° is a practical, well-built accessory for anyone who wants to use their telescope not only for nighttime astronomy, but also for comfortable daytime observation of nature, birds or distant scenery - with an image that is always the right way up.
Omegon Amici prism - nature-watching is now even more brilliant
Nature-watching with a telescope does not have to be difficult. It can even be easy. This Amici prism not only provides you with a non-reversed and upright image, it also gives you a brilliant and pin-sharp image that run-of-the-mill prisms usually can't manage. This is made possible by the use of a high-transmission BaK4 prism with anti-reflection coatings on the optical surfaces.
- high quality Amici prism with 45° viewing angle
- fully coated BaK4 prism for a bright, reflection-free image
- compression ring for flat and gentle clamping of eyepieces
- 25mm clear inner diameter for obstruction-free images
- constructed of metal and plastic
- Angled at 45° for easy viewing
- If you have a refracting, Maksuvtov or SC telescope, you can simply insert the prism into the focuser. This then turns your telescope into a powerful instrument for nature-watching. The prism has a 45° viewing angle - as natural subjects are usually in the horizontal plane. This also helps keep your posture more relaxed, making longer observing sessions possible.
- Coated BaK4 prism - for great images
- The heart of the Omegon Amici prism is a coated BaK4 prism. This type of glass is characterized by its very high light transmission, meaning the prism will provide you with a very bright and colour-neutral image. It also significantly increases the resolution and hence the detection of small details. So the next time you observe Jupiter, you can expect the colours and details to be genuine. The prism's optical surfaces have been multi-layer multi-coated, giving the image even more contrast and increasing the quality of your observing.
- Compression ring - for flat clamping of your eyepieces
- Eyepieces are not simply clamped via a screw, but treated more gently by use of a compression ring.
- The compression ring ensures:
- flat and rigid clamping
- prevention of scratches and nicks on the barrels of your eyepieces
1.25" barrel and filter thread
The Amici prism fits into any 1.25" focuser and also allows the use of a 1.25" screw-type filter.
Capacity
|
| Type |
Amici prism |
| Viewing posture |
45° |
| Connection (to the telescope) |
1,25" |
| Coating of optical system |
fully |
Special features
|
| Correction of vertically reversed image |
yes |
| Correction of horizontally reversed image |
yes |
| Ring clamp |
yes |
General
|
| Colour |
black-silver |
| Weight (g) |
170 |
| Material |
Aluminium |
| Series |
Pro |
