Omegon Main Mirror - Razor-sharp image for serious astrophotography
The 12″ F/8 Ritchey-Chrétien main mirror set delivers first-class performance for advanced builders. With this set, you will accurately collimate an RC truss tube and enjoy maximum sharpness, contrast and clarity. Ideal for astrophotographers who want to get the most out of their telescope.
High-quality mirrors with reflective coatings
The main and catch mirrors are made of fused silica (quartz) and coated with aluminum and SiO₂ coatings. This ensures optimal reflection, minimal distortion and durable performance, so you can enjoy years of crystal clear images.

Specially designed for advanced applications
The set is perfect for installation in an RC truss tube. So you build a powerful Ritchey-Chrétien that meets the high demands of serious amateur astronomers. Durable, stable and accurate - essential for both visual observation and professional photography.
What we recommend
✓ Astrophotography: ideal for RC truss tubes
✓ Usage: for advanced telescope builders
✓ Image quality: high sharpness and contrast
✗ Beginners: not suitable
✗ Quick set-up: requires experience and precision
Specifications
Capacity
| Feature | Description |
|---|---|
| Aperture ratio (f/) | 8 |
| Surface reflection | 94% |
| Focal length (mm) | 2432 |
| Optics coating | Aluminum & silicon dioxide |
General
| Feature | Description |
|---|---|
| Diameter | 304 mm / 12″ |
| Material | Quartz |
| Type | Parts |





Reviews
There are no reviews yet.