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Officina Stellare RC 500/4000 Pro RC CGA Ritchey-Chretien OTA
Supplied as an independent optical tube, the Meade N 150/610 LX85 OTA provides a 150mm fast Newtonian astrograph with 610mm focal length and Vixen-style mounting hardware.
- 150mm aperture provides 0.77-arcsecond resolution
- 610mm focal length uses f/4.1 optics
- Fast parabolic reflector supports listed imaging
- Focuser, finder, and extension tube included
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Description
Large-aperture research imaging begins with the Officina Stellare RC 500/4000 Pro RC CGA Ritchey-Chretien OTA, a 500 mm true Ritchey-Chrétien optical tube with a 4000 mm focal length and listed f/8 optical ratio. Its low-expansion borosilicate mirror substrates, carbon-fiber truss, aerospace aluminum rings, dual Losmandy rails, electronic focus adjustment, thermal extraction system, fixed optical cell, and protective shroud support a demanding observatory imaging configuration.
The 500 mm aperture and 4000 mm focal length create a specialized high-resolution imaging system that requires a suitably engineered mount, pier, camera, guider, control hardware, and power infrastructure. The open truss should be protected from stray light, dust, and moisture, while collimation, thermal behavior, focus, and structural alignment should be checked after installation and whenever the optical system is moved.
Key Features of Officina Stellare RC 500/4000 Pro RC CGA Ritchey-Chretien OTA
This large true RC optical tube combines a 500 mm aperture with a 4000 mm focal length, f/8 optical ratio, borosilicate substrates, hyperbolic mirrors, 96% reflective coatings, carbon-fiber truss, electronic focusing, thermal fans, dual Losmandy rails, and protective shroud.
- 500 mm true Ritchey-Chrétien optical system
- 4000 mm focal length with listed f/8 optical ratio
- Low-expansion borosilicate mirror substrates
- Hyperbolic primary and secondary mirrors
- 96% protected reflective coating matrix
- Electronic secondary mirror focus control
- Integrated multi-fan thermal extraction
- Dual Losmandy-style dovetail rails
Research-Grade Deep-Sky Imaging
The supplied application focuses on faint-galaxy, nebula, cluster, and high-resolution planetary imaging, with the 500 mm aperture providing the listed large optical format while the 4000 mm focal length demands precise tracking, guiding, focus control, camera spacing, calibration, and a high-capacity observatory mount designed for the completed system.
Why Choose Officina Stellare RC 500/4000 Pro RC CGA Ritchey-Chretien OTA
The CGA edition is relevant when a professional imaging installation needs maximum aperture, long focal length, low-expansion borosilicate substrates, carbon structural components, electronic focusing, thermal extraction, dual Losmandy rails, and a true RC optical system for specialized research or high-resolution astrophotography.
- 500 mm aperture for the listed research-imaging application
- 4000 mm focal length with true Ritchey-Chrétien optics
- Carbon structure, electronic focus, thermal fans, rails, and shroud included
Officina Stellare 2-Year Limited Warranty
The supplied product information lists a 2-year limited warranty for this optical tube assembly, and the applicable regional warranty terms, optical coverage, electronic focus coverage, structural coverage, thermal system coverage, registration requirements, and authorized service process should be confirmed with Officina Stellare or its authorized distributor before deployment.
Officina Stellare RC 500/4000 Pro RC CGA Ritchey-Chretien OTA Specs
| Brand | Officina Stellare |
| Full Model Code | Officina Stellare ProRC 500 Low Expansion Glass Core Carbon Truss Astrophotography Optical Tube Assembly - CGA Edition |
| Country of Origin | Italy |
| Optical Design | True Ritchey-Chretien (Coma-Free Two-Mirror Reflecting System with Hyperbolic Primary and Secondary Elements) |
| Aperture | 500 mm (19.69 inches) |
| Focal Length | 4000 mm |
| Focal Ratio | f/8 |
| Optical Coatings | High-Reflectivity Multi-Layer Aluminum Coating Matrix with 96% Protected Reflectance Efficiency |
| Glass Material | Premium Low-Expansion Borosilicate Glass Primary and Secondary Mirror Substrates |
| Secondary Mirror Obstruction | 235 mm |
| Secondary Mirror Obstruction by Diameter | 47.0% |
| Secondary Mirror Obstruction by Area | 22.09% |
| Resolving Power | 0.23 Arcseconds (Dawes), 0.28 Arcseconds (Rayleigh) |
| Limiting Visual Magnitude | 16.2 |
| Highest Useful Magnification | 1000x |
| Lowest Useful Magnification | 71x |
| Optical Tube Material | Open-Frame High-Modulus Carbon Fiber Truss Layout with Machined Clear Anodized Aerospace Aluminum Alloy Component Structural Rings (CGA) |
| Focuser Style & Mechanism | Electronic Secondary Mirror Focus Adjustment Drive Array with Internal Temperature Compensation Mechanics |
| Mirror Lock Mechanism | Yes (Fixed Multi-Point Fixed Optical Array Substrate Cell with Integrated Rear Axial Restraint Brackets) |
| Optical Tube Dimensions | 690 mm x 1480 mm |
| Optical Tube Weight | 75.00 kg (165.35 lbs) |
| Mount Attachment Type | Dual Heavy-Duty Losmandy-Style D-Plate Platform Rails Installed Top and Bottom |
| Finder Scope Specification | Not Included / Pre-drilled for Professional Auxiliary Target Tracker Brackets |
| Included Accessories | 500mm ProRC Hyperbolic OTA, Clear Anodized Components Framework, Integrated Multi-Fan Secondary Boundary Layer Thermal Extraction System, Electronic Focus Controller Interface Hub, Protective Fabric Truss Shroud Blanket |
| Standard Warranty | 2-Year Limited Warranty |
| Application | Research-grade deep-space imaging and high-resolution digital telemetry collection, leveraging an open carbon frame structure to prevent structural drift during long-exposure capture cycles. |
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