Omegon Ritchey-Chretien Pro RC 355/2845 Truss OTA

Omegon Ritchey-Chretien Pro RC 355/2845 Carbon-Fiber Truss-Tube Telescope OTA

Professional-grade telescope for advanced astrophotography enthusiasts and observatory installations.

Embark on an astrophotography journey with the Omegon Ritchey-Chretien Pro RC 355/2845, designed with precision and performance in mind. This telescope is ideal for those who demand exceptional image quality from their observatories, featuring advanced optics for stunning celestial images.

Ritchey-Chretien telescopes are renowned for their ability to produce nearly perfect images, thanks to their large mirror optics. The two hyperbolic mirrors deliver a spacious, well-illuminated, and coma-free image from a compact design, ensuring perfect stellar images right to the edge of the field of view. These qualities make it a favored choice among professional observatories and research institutes.

Now, you can harness this professional-grade technology in your own observatory. The balanced design of Omegon RC telescopes makes them suitable even for smaller observatories.

Key Features:

• Hyperbolic Mirrors: Offers extremely sharp images over a large field of view without the need for a corrector.
• Quartz Mirrors: Provides stable focus without refocusing due to minimal thermal expansion.
• CCD Camera Compatibility: Supports large-format CCD cameras with approximately 60mm of illumination.
• Carbon-Fiber Truss Tube: Features a stiff, lightweight, and thermally stable design.
• High Reflectivity: 92-94% dielectric reflective coating ensures bright, high-contrast images.
• Efficient Cooling: Open design and electric fans minimize tube currents and accelerate optic cool-down.

Advanced Optical Design

Unlike traditional Schmidt-Cassegrain systems, the RC telescope's hyperbolic mirrors avoid spherical aberrations, providing a wider image field with fewer aberrations. This makes it the preferred choice for astrophotography and large CCD cameras, resulting in sharp images across the entire field of view without requiring a corrector.

Extended Spectral Range

With no lenses in the beam path, RC telescopes eliminate issues with chromatic aberration or dispersion, allowing extended use into the UV and infrared spectra. This feature is invaluable for capturing intriguing astrophotographic details beyond visible light.

Quartz Main Mirror

The inclusion of two quartz mirrors minimizes focus drift during long exposures, a common frustration among astrophotographers. These mirrors maintain focus throughout the night, enabling uninterrupted imaging sessions.

Rapid Cool-Down

The built-in 12V fan expedites the cool-down process of the main mirror by 50%. This means your telescope reaches optimal image quality faster, reducing downtime between observations.

Carbon-Fiber Truss-Tube Design

The professional-grade truss-tube design, utilizing carbon-fiber, ensures durability and thermal stability, which helps prevent focus drift. The open design enhances natural ventilation, avoiding microclimate formation within the system.

3” Focuser for Unobstructed Aperture

The 3” Linear Crayford Focuser is designed for large-format imaging without vignetting. Its hybrid design combines the smoothness of a Crayford focuser with the stability of a rack and pinion focuser.

• Rotatable for perfect object alignment.
• Includes a 2” to 1.25” reducer with an integrated compression ring.
• 1:10 reduction for fine focus adjustments.
• Features a setting scale for quick focus retrieval.
• Stable design prevents movement, keeping the camera aligned along the optical axis.

Customizable Focuser Alignment

Six collimating screws allow precise alignment of the 3" focuser, ensuring that the camera or eyepiece remains aligned with the optical axis. The focuser retains a genuine 3" diameter throughout, unlike many similar models.

Superior Design Compared to SC Telescopes

The RC telescope stands out from the classic SC or Maksutov designs by lacking a corrector plate, allowing quicker adaptation to ambient temperatures and reducing internal reflections. As a result, these systems deliver brighter images with superior edge-to-edge sharpness.

Affordable Precision

Once reserved for international research institutions due to their cost, RC telescopes are now accessible to experienced amateur astronomers, offering unparalleled image quality.

Specifications:

• Product ID: 73126
• Brand: Omegon
• Warranty: 2 years
• EAN: 2400000037019
• Shipping Weight: 0 kg
• Optical Design: Reflector
• Optical Scheme: Ritchey-Chrétien
• Objective Lens Diameter (Aperture): 355.0 mm
• Focal Length: 2845 mm
• Highest Practical Power: 700x
• Aperture Ratio: f/8
• Limiting Stellar Magnitude: 15.25
• Optical Tube Weight: 28.3 kg
• User Level: Experienced users, professionals
• Observed Object: Deep-sky objects