Planewave DeltaRho 350 f/3 Optical Tube Assembly

The DeltaRho 350 from PlaneWave Instruments is a pinnacle of innovation designed for avid astronomers and astrophotographers. Created with a passion for excellence, the DeltaRho 350 brings groundbreaking features to advanced imaging, offering unmatched versatility across a spectrum of scientific and communicative applications.

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Key Features Overview

The DeltaRho 350 boasts a suite of top-tier features that set it apart:

• Large 350mm aperture
• Fast f/3 focal ratio
• 1050 mm focal length
• 60mm Image circle (> 3 degrees)
• 143.535 mm back focus from the mounting surface; 64.135 mm with Series-5 focuser and rotator
• Advanced corrected Cassegrain focus optical design
• Robust carbon fiber tube construction
• About the DeltaRho 350 f/3 Optical Tube Assembly

  DeltaRho 350’s Key Features

  Large Aperture and Fast Focal Ratio

  The DeltRho 350 has a 350 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

  Featuring a corrected Cassegrain focus optical system, the DeltaRho 350 ensures top-tier image clarity. Achieve sharp, flat fields across the entire field of view with no curvature, capturing stellar images that require minimal post-processing.

  Mechanical Structure

  Constructed with a lightweight yet sturdy carbon fiber tube. This Offers enhanced durability and stability while minimizing thermal expansion and maintaining optimal image quality under various environmental conditions.

  High-Performance Coatings

  Equipped with high-quality mirror coatings that can be customized to meet specific observational requirements. It enhances light transmission and reduces stray light, optimizing the telescope for specialized applications such as SSA/SDA and FSO.

  Collimation Software

  The DeltaRho 350 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.

  Dew Control

  Integrated dew control systems in the DeltaRho 350 utilize advanced heater technology to prevent condensation on optical surfaces. This system ensures that dew does not interrupt observations and imaging sessions, providing consistent clarity and performance in various environmental conditions.

  Application-Specific Benefits

  Astrophotography

  The DeltaRho 350’s fast exposures and expansive field view allow astrophotographers to capture breathtaking night sky images with exceptional detail and clarity.

  Astronomy Research

  With its robust build and advanced optics, the DeltaRho 350 is an excellent tool for universities and research institutions engaged in long-term astronomical studies.

  Space Situational Awareness (SSA) and Space Domain Awareness (SDA)

  The Delta Rho's fast focal ratio and large image circle allow you to take shorter exposures and use larger Sensors. Making it perfect for surveying larger areas of the sky for quicker monitoring and cataloging of space debris and satellites.

  Aperture350 mm (13.7")Focal Length1050 mm (41.34")Focal Ratiof/3Central Obstruction56% by diameterBack Focus from Mounting Surface142.24 mm (5.6")Weight46 lbs (21 kg)OTA Length584 mm (23")Optical Design Performance4.9-micron RMS on-axis, 5.6-micron RMS at 23 mm off-axis, 6.4-micron RMS at 30 mm off-axisUpper CageCarbon fiber truss poles with carbon fiber shroudImage Circle Size60 mm

  Diameter	110 mm (4.33")
  Coating	Broadband AR Coatings (less than .5% reflected from 400 to 700 nm)

  Diameter190 mm (7.48")MaterialFused silica (quartz)ShapeSphericalCoatingEnhanced Aluminum - 96%

  Optical Diameter	350mm (13.78")
  Outer Diameter	4.5 in (14.5")
  Shape	Prolate Ellipsoid
  Material	Fused Silica (quartz)
  Coating	Enhanced Aluminum - 96%

  Included Items	Heating Elements for Dew Prevention - The heating pads on the primary and secondary mirror require the 600195 Delta-T controller sold separately
  	OTA Cover - To protect the primary mirror and inside of the optical tube
  	Flashdrive - Contains software and instructions for collimation and spacing the primary to secondary mirror
  	Wrench Set (5812A35) - Standard hex wrenches (European orders only)