PlaneWave DeltaRho 500 f/3 Telescope OTA

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Shipped directly from the PlaneWave factory in Adrian, Michigan. $400 Crating Fee and shipping charges to be billed separately.
- DeltaRho: Optical design with flat field, and exceptionally fast optics. Delivering no off-axis coma or astigmatism across a 70 mm image circle, ensuring extremely sharp edge-to-edge images.
- High-quality fused-silica mirrors & carbon fiber structure: mirrors with low thermal expansion plus a rigid, lightweight carbon-fiber tube help maintain optical performance across temperature variations.
- Robust optical parameters: 508 mm aperture, 1537 mm focal length (f/3), 232.8 mm back-focus from mounting surface, and image quality tolerances of ~3.86 microns RMS on-axis
PlaneWave Instruments DeltaRho 500 f/3 OTA
The DeltaRho 500 from PlaneWave Instruments showcases the perfect blend of precision engineering and cutting-edge innovation, crafted for the passionate astrophotographer and dedicated research astronomer alike! This advanced corrected Cassegrain focus optical design delivers uncompromising optical performance, this telescope provides remarkable image quality across a wide range of observational and scientific applications. Please note: Price excludes shipping and crating.
Specification Spotlight
- Large Aperture - 20 in (508 mm)
- Back Focus - 232.7 mm back focus from mounting surface
- Percision Optical Performance - Perfectly flat field across the entire 70 mm image circle
- Edge-to-Edge Clarity - No off-axis coma or astigmatism
- Thermally Stable Fused Silica Mirrors - Rock-solid fused silica mirrors with low thermal expansion
- Carbon Fiber Construction - Lightweight and rigid carbon fiber optical tube assembly
- Integrated Dew Control - Keep your mirrors images clear and consistent all night with condensation control
Application-Specific Benefits
The DeltaRho 500 tube from PlaneWave Instruments delivers exceptional performance across a wide range of applications, making it a versatile choice for both imaging and observational astronomy. Astrophotographers will appreciate its fast f/3 optical system and stable performance, creating stunning, high-detail images. Academic institutions and observatories can rely on the DeltaRho 350 for research purposes, including stellar photometry, minor planet tracking, and other detailed astronomical studies. The DeltaRho 500 also supports Space Situational Awareness and Space Domain Awareness efforts, offering the detailed observations necessary to track satellites and monitor space debris, contributing valuable data for space traffic management and safety initiatives!
A Closer Look at the DeltaRho 500 Key Features:
Large Aperture and Extended Focal Ratio
The DeltRho 500 has a 508 mm aperture and an impressively fast f/3 focal ratio. This combination allows significant light-gathering capability and rapid image capture, perfect for detailed SSA/SDA object capture and deep-sky photography.
Advanced Optical Design
The state-of-the-art Corrected Dall-Kirkham optical system offers outstanding image clarity. This design eliminates off-axis coma and astigmatism and achieves a perfectly flat field, ensuring images are consistently sharp and detailed across the entire field with minimal post-processing adjustments
Robust Mechanical Structure
Built with a carbon fiber optical tube, the DeltaRho 500 is lightweight and highly durable. Its design accounts for minimal thermal expansion, which ensures stable focus across a range of temperatures which is ideal for extended observing sessions in diverse environmental conditions.
High-Performance Mirrors and Coatings
DeltaRho 500 Featuring fused silica mirrors that maintains precise optical alignment and surface accuracy under temperature shifts. The superior coatings enhance light transmission and reduce stray light, optimizing the telescope’s performance for demanding observational tasks.
Collimation Software
The DeltaRho 500 is equipped with user-friendly collimation software designed to ensure optimal alignment of optical elements quickly and accurately. This feature is crucial for maintaining the high resolution and sharpness needed for professional-level imaging and research, allowing users to adjust collimation on the fly easily.
Integrated Dew Control
This telescope integrates sophisticated dew prevention technology with heating pads managed through PlaneWave’s software. This system ensures that optical surfaces remain clear from condensation under varying humidity levels, maintaining clarity and performance during observational sessions.
Specifications
Optical Systems
- Aperture: 20 in (508 mm)
- Focal Length: 60.5 in (1537 mm)
- Focal Ratio: f/3
- Central Obstruction: 59 % by diameter
- Back Focus from Mounting Surface: 9.166 in (232.8 mm) from mounting surface; 7.271 inch (184.7 mm) from lens cell
- Weight: 165 lbs (75 kg)
- OTA Length: 35.1 inch (892 mm)
- Optical Design Performance: 3.86 micron RMS on-axis, 4.04 micron RMS at 22 mm off-axis, and 6.04 micron RMS at 35 mm off-axis
- Upper Cage: Carbon fiber truss poles with carbon fiber shroud
- Image Circle Size: 70 mm
Secondary Mirror
- Diameter: 6.3 inch (160 mm)
- Coating: Broadband AR Coatings (on avg. less than .5% reflected from 400 to 700 nm)
Primary Mirror
- Optical Diameter: 20 in (508 mm)
- Outer Diameter: 20.8 in (528 mm)
- Shape: Prolate ellipsoid
- Material: Fused Silica (quartz)
- Coating: Enhanced aluminum – 96%
Other Information
- Country of Manufacture: United States
PlaneWave Instruments DeltaRho 500 f/3 OTA
The DeltaRho 500 from PlaneWave Instruments showcases the perfect blend of precision engineering and cutting-edge innovation, crafted for the passionate astrophotographer and dedicated research astronomer alike! This advanced corrected Cassegrain focus optical design delivers uncompromising optical performance, this telescope provides remarkable image quality across a wide range of observational and scientific applications. Please note: Price excludes shipping and crating.
Specification Spotlight
- Large Aperture - 20 in (508 mm)
- Back Focus - 232.7 mm back focus from mounting surface
- Percision Optical Performance - Perfectly flat field across the entire 70 mm image circle
- Edge-to-Edge Clarity - No off-axis coma or astigmatism
- Thermally Stable Fused Silica Mirrors - Rock-solid fused silica mirrors with low thermal expansion
- Carbon Fiber Construction - Lightweight and rigid carbon fiber optical tube assembly
- Integrated Dew Control - Keep your mirrors images clear and consistent all night with condensation control
Application-Specific Benefits
The DeltaRho 500 tube from PlaneWave Instruments delivers exceptional performance across a wide range of applications, making it a versatile choice for both imaging and observational astronomy. Astrophotographers will appreciate its fast f/3 optical system and stable performance, creating stunning, high-detail images. Academic institutions and observatories can rely on the DeltaRho 350 for research purposes, including stellar photometry, minor planet tracking, and other detailed astronomical studies. The DeltaRho 500 also supports Space Situational Awareness and Space Domain Awareness efforts, offering the detailed observations necessary to track satellites and monitor space debris, contributing valuable data for space traffic management and safety initiatives!
A Closer Look at the DeltaRho 500 Key Features:
Large Aperture and Extended Focal Ratio
The DeltRho 500 has a 508 mm aperture and an impressively fast f/3 focal ratio. This combination allows significant light-gathering capability and rapid image capture, perfect for detailed SSA/SDA object capture and deep-sky photography.
Advanced Optical Design
The state-of-the-art Corrected Dall-Kirkham optical system offers outstanding image clarity. This design eliminates off-axis coma and astigmatism and achieves a perfectly flat field, ensuring images are consistently sharp and detailed across the entire field with minimal post-processing adjustments
Robust Mechanical Structure
Built with a carbon fiber optical tube, the DeltaRho 500 is lightweight and highly durable. Its design accounts for minimal thermal expansion, which ensures stable focus across a range of temperatures which is ideal for extended observing sessions in diverse environmental conditions.
High-Performance Mirrors and Coatings
DeltaRho 500 Featuring fused silica mirrors that maintains precise optical alignment and surface accuracy under temperature shifts. The superior coatings enhance light transmission and reduce stray light, optimizing the telescope’s performance for demanding observational tasks.
Collimation Software
The DeltaRho 500 is equipped with user-friendly collimation software designed to ensure optimal alignment of optical elements quickly and accurately. This feature is crucial for maintaining the high resolution and sharpness needed for professional-level imaging and research, allowing users to adjust collimation on the fly easily.
Integrated Dew Control
This telescope integrates sophisticated dew prevention technology with heating pads managed through PlaneWave’s software. This system ensures that optical surfaces remain clear from condensation under varying humidity levels, maintaining clarity and performance during observational sessions.
Specifications
Optical Systems
- Aperture: 20 in (508 mm)
- Focal Length: 60.5 in (1537 mm)
- Focal Ratio: f/3
- Central Obstruction: 59 % by diameter
- Back Focus from Mounting Surface: 9.166 in (232.8 mm) from mounting surface; 7.271 inch (184.7 mm) from lens cell
- Weight: 165 lbs (75 kg)
- OTA Length: 35.1 inch (892 mm)
- Optical Design Performance: 3.86 micron RMS on-axis, 4.04 micron RMS at 22 mm off-axis, and 6.04 micron RMS at 35 mm off-axis
- Upper Cage: Carbon fiber truss poles with carbon fiber shroud
- Image Circle Size: 70 mm
Secondary Mirror
- Diameter: 6.3 inch (160 mm)
- Coating: Broadband AR Coatings (on avg. less than .5% reflected from 400 to 700 nm)
Primary Mirror
- Optical Diameter: 20 in (508 mm)
- Outer Diameter: 20.8 in (528 mm)
- Shape: Prolate ellipsoid
- Material: Fused Silica (quartz)
- Coating: Enhanced aluminum – 96%
| Manufacturer | PlaneWave Instruments |
|---|---|
| Telescope Focal Length | 1501 - 1750mm |
- DeltaRho 500 OTA
- 1x Heating Elements for Dew Prevention - The heating pads on the primary and secondary mirror require the 600195 Delta-T controller sold separately
- 1x OTA Cover - To protect the primary mirror and inside of the optical tube
- 1x Wrench Set (5812A35) - Standard hex wrenches (European orders only)
Shipped directly from the PlaneWave factory in Adrian, Michigan. $400 Crating Fee and shipping charges to be billed separately.
- DeltaRho: Optical design with flat field, and exceptionally fast optics. Delivering no off-axis coma or astigmatism across a 70 mm image circle, ensuring extremely sharp edge-to-edge images.
- High-quality fused-silica mirrors & carbon fiber structure: mirrors with low thermal expansion plus a rigid, lightweight carbon-fiber tube help maintain optical performance across temperature variations.
- Robust optical parameters: 508 mm aperture, 1537 mm focal length (f/3), 232.8 mm back-focus from mounting surface, and image quality tolerances of ~3.86 microns RMS on-axis
PlaneWave Instruments DeltaRho 500 f/3 OTA
The DeltaRho 500 from PlaneWave Instruments showcases the perfect blend of precision engineering and cutting-edge innovation, crafted for the passionate astrophotographer and dedicated research astronomer alike! This advanced corrected Cassegrain focus optical design delivers uncompromising optical performance, this telescope provides remarkable image quality across a wide range of observational and scientific applications. Please note: Price excludes shipping and crating.
Specification Spotlight
- Large Aperture - 20 in (508 mm)
- Back Focus - 232.7 mm back focus from mounting surface
- Percision Optical Performance - Perfectly flat field across the entire 70 mm image circle
- Edge-to-Edge Clarity - No off-axis coma or astigmatism
- Thermally Stable Fused Silica Mirrors - Rock-solid fused silica mirrors with low thermal expansion
- Carbon Fiber Construction - Lightweight and rigid carbon fiber optical tube assembly
- Integrated Dew Control - Keep your mirrors images clear and consistent all night with condensation control
Application-Specific Benefits
The DeltaRho 500 tube from PlaneWave Instruments delivers exceptional performance across a wide range of applications, making it a versatile choice for both imaging and observational astronomy. Astrophotographers will appreciate its fast f/3 optical system and stable performance, creating stunning, high-detail images. Academic institutions and observatories can rely on the DeltaRho 350 for research purposes, including stellar photometry, minor planet tracking, and other detailed astronomical studies. The DeltaRho 500 also supports Space Situational Awareness and Space Domain Awareness efforts, offering the detailed observations necessary to track satellites and monitor space debris, contributing valuable data for space traffic management and safety initiatives!
A Closer Look at the DeltaRho 500 Key Features:
Large Aperture and Extended Focal Ratio
The DeltRho 500 has a 508 mm aperture and an impressively fast f/3 focal ratio. This combination allows significant light-gathering capability and rapid image capture, perfect for detailed SSA/SDA object capture and deep-sky photography.
Advanced Optical Design
The state-of-the-art Corrected Dall-Kirkham optical system offers outstanding image clarity. This design eliminates off-axis coma and astigmatism and achieves a perfectly flat field, ensuring images are consistently sharp and detailed across the entire field with minimal post-processing adjustments
Robust Mechanical Structure
Built with a carbon fiber optical tube, the DeltaRho 500 is lightweight and highly durable. Its design accounts for minimal thermal expansion, which ensures stable focus across a range of temperatures which is ideal for extended observing sessions in diverse environmental conditions.
High-Performance Mirrors and Coatings
DeltaRho 500 Featuring fused silica mirrors that maintains precise optical alignment and surface accuracy under temperature shifts. The superior coatings enhance light transmission and reduce stray light, optimizing the telescope’s performance for demanding observational tasks.
Collimation Software
The DeltaRho 500 is equipped with user-friendly collimation software designed to ensure optimal alignment of optical elements quickly and accurately. This feature is crucial for maintaining the high resolution and sharpness needed for professional-level imaging and research, allowing users to adjust collimation on the fly easily.
Integrated Dew Control
This telescope integrates sophisticated dew prevention technology with heating pads managed through PlaneWave’s software. This system ensures that optical surfaces remain clear from condensation under varying humidity levels, maintaining clarity and performance during observational sessions.
Specifications
Optical Systems
- Aperture: 20 in (508 mm)
- Focal Length: 60.5 in (1537 mm)
- Focal Ratio: f/3
- Central Obstruction: 59 % by diameter
- Back Focus from Mounting Surface: 9.166 in (232.8 mm) from mounting surface; 7.271 inch (184.7 mm) from lens cell
- Weight: 165 lbs (75 kg)
- OTA Length: 35.1 inch (892 mm)
- Optical Design Performance: 3.86 micron RMS on-axis, 4.04 micron RMS at 22 mm off-axis, and 6.04 micron RMS at 35 mm off-axis
- Upper Cage: Carbon fiber truss poles with carbon fiber shroud
- Image Circle Size: 70 mm
Secondary Mirror
- Diameter: 6.3 inch (160 mm)
- Coating: Broadband AR Coatings (on avg. less than .5% reflected from 400 to 700 nm)
Primary Mirror
- Optical Diameter: 20 in (508 mm)
- Outer Diameter: 20.8 in (528 mm)
- Shape: Prolate ellipsoid
- Material: Fused Silica (quartz)
- Coating: Enhanced aluminum – 96%
Other Information
- Country of Manufacture: United States
| Manufacturer | PlaneWave Instruments |
|---|---|
| Telescope Focal Length | 1501 - 1750mm |
- DeltaRho 500 OTA
- 1x Heating Elements for Dew Prevention - The heating pads on the primary and secondary mirror require the 600195 Delta-T controller sold separately
- 1x OTA Cover - To protect the primary mirror and inside of the optical tube
- 1x Wrench Set (5812A35) - Standard hex wrenches (European orders only)
