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Officina Stellare RiFast 300/1140 SGC OTA
Built for fast imaging workflows, the Officina Stellare RiFast 300/1140 SGC OTA combines a 300mm aperture with 1140mm focal length, synthetic quartz optics, and carbon truss construction.
- 300mm aperture provides 0.39-arcsecond resolution
- 1140mm focal length uses f/3.8 optics
- Riccardi-Fast design uses sub-aperture corrector
- Quartz mirror foundation supports thermal stability
- Carbon truss and cooling system included
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Description
High-resolution wide-field imaging is the purpose of the Officina Stellare RiFast 300/1140 SGC OTA, a 300 mm Riccardi-Fast astrograph with a 1140 mm focal length and listed f/3.8 optical ratio. Its aspherical primary mirror, multi-element sub-aperture corrector cluster, synthetic quartz foundation, carbon truss, dual Losmandy rails, electronic temperature-compensated focus, integrated thermal fans, fixed mirror structure, and protective shroud support specialized deep-sky imaging.
The SGC configuration requires a suitable high-capacity mount, camera, guide system, power infrastructure, and control hardware, while its fast optical format is intended for broad deep-sky fields and extended targets. The carbon structure, thermal extraction, focus system, and optical alignment should be checked after installation or transport, with camera spacing and calibration matched to the selected imaging sensor.
Key Features of Officina Stellare RiFast 300/1140 SGC OTA
This Riccardi-Fast astrograph combines a 300 mm aperture with a 1140 mm focal length, f/3.8 optical ratio, aspherical primary mirror, multi-element corrector cluster, synthetic quartz foundation, carbon truss, electronic focusing, dual Losmandy rails, cooling fans, and protective shroud.
- 300 mm Riccardi-Fast astrograph
- 1140 mm focal length with listed f/3.8 optical ratio
- Aspherical primary mirror configuration
- Multi-element sub-aperture corrector cluster
- Ultra-low expansion synthetic quartz foundation
- Electronic temperature-compensated focus
- Carbon truss with dual Losmandy rails
- Thermal fans, controller interface, and protective shroud
Fast Deep-Sky Imaging Configuration
The supplied application focuses on wide-field deep-sky astrophotography of nebulae, galaxies, clusters, and other extended targets, with the f/3.8 optical system supporting shorter exposure workflows while final camera compatibility, field correction, focus, guiding, thermal performance, calibration, and image quality depend on the complete imaging setup.
Why Choose Officina Stellare RiFast 300/1140 SGC OTA
The SGC configuration is relevant when a fast 300 mm astrograph needs synthetic quartz thermal behavior, carbon structural support, electronic focusing, multi-element correction, dual Losmandy mounting, active thermal extraction, and an optical format suited to broad deep-sky imaging with compatible professional equipment.
- 300 mm aperture with fast f/3.8 optical design
- Synthetic quartz foundation for thermal stability
- Electronic focus, carbon truss, rails, cooling, and shroud included
Officina Stellare 2-Year Limited Warranty
The supplied product information lists a 2-year limited warranty for this astrograph, and the applicable regional warranty terms, optical coverage, electronic focus coverage, thermal system coverage, structural coverage, registration requirements, and authorized service process should be confirmed with Officina Stellare or its authorized distributor before building the complete imaging system.
Officina Stellare RiFast 300/1140 SGC OTA Specs
| Brand | Officina Stellare |
| Full Model Code | Officina Stellare RiFast 300 Fast Newtonian-Derived Sub-Aperture Corrector Astrograph Optical Tube Assembly - SGC Edition |
| Country of Origin | Italy |
| Optical Design | Fast Riccardi-Fast Astrograph (Aspherical Primary Mirror Layout with Multi-Element Sub-Aperture Lens Corrector Cluster) |
| Aperture | 300 mm (11.81 inches) |
| Focal Length | 1140 mm |
| Focal Ratio | f/3.8 |
| Optical Coatings | High-Reflectivity Multi-Layer Aluminum Coating Matrix with 96% Protected Reflectance Efficiency |
| Glass Material | Ultra-Low Expansion Synthetic Quartz Glass Mirror Foundation paired with Premium Low-Dispersion Flattener Corrector Elements |
| Secondary Mirror Obstruction | 145 mm |
| Secondary Mirror Obstruction by Diameter | 48.33% |
| Secondary Mirror Obstruction by Area | 23.36% |
| Resolving Power | 0.39 Arcseconds (Dawes), 0.46 Arcseconds (Rayleigh) |
| Limiting Visual Magnitude | 15.1 |
| Highest Useful Magnification | 600x |
| Lowest Useful Magnification | 43x |
| Optical Tube Material | Open-Frame High-Modulus Carbon Fiber Truss Layout with Dark Carbon Matrix Coated Component Rings and Core Couplers (SGC Matrix Carbon Package) |
| 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 | 440 mm x 980 mm |
| Optical Tube Weight | 23.00 kg (50.71 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 | 300mm RiFast Quartz OTA, All-Carbon Structural Rings, 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 | Automated continuous sky scanning networks requiring structural lightness and absolute thermal safety, using synthetic quartz elements inside a dark carbon frame to completely avoid focus shifting during rapid nighttime temperature drops. |
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