Home > Telescopes > Reflecting Telescopes >
PlaneWave DeltaRho 350 Telescope

PlaneWave DeltaRho 350 Telescope

Starting Price: $21,500.00
Price as Configured: $21,500.00
Brand: PlaneWave Instruments / SKU: PW-140126Q

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 space communication applications.

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
NOTE: Shipping cost will be determined after the order is made and must be paid for before the telescope will ship. A shipping quote can be obtained on request.

Packaging (Required)
Recommended Add-ons and Accessories
Product Price Quantity
PW-2019001 - PlaneWave Piggyback Dovetail Bar for DeltaRho500
PW-2019001 - PlaneWave Piggyback Dovetail Bar for DeltaRho500
About This Product
Piggyback dovetails for mounting accessories atop an optical tube. These dovetails accept Losmandy D-style accessories.
Piggyback Dovetail Assemblies come with mounting brackets and a Losmandy style dovetail for mounting accessories on your CDK14, 17, 20, 24, and 700.
Please Note- For CDK17 users: 170990 – is for the current CDK17 design with 10.24” of backfocus
$748.00 each
PW-600182 - PlaneWave Keller EZ Saddle
PW-600182 - PlaneWave Keller EZ Saddle
About This Product
The Keller EZ Saddle (600182) accepts Losmandy D-style dovetail rails such as the CDK12.5, CDK14, and DeltaRho 350. This saddle comes standard with the L-350 mount and can also be attached to the outside arm of any L-series mount for dual-mounted OTA configurations.

The PlaneWave Wide Saddle (200919) comes standard with L-500, L-550, and L-600 mounts for securing CDK17, CDK 20, CDK24, and DeltaRho 500 telescopes.
$460.00 each
PW-600199 - PlaneWave Series-5 Controller
PW-600199 - PlaneWave Series-5 Controller
About This Product
PlaneWave has designed a new 5-wire bus communication box that controls the Series-5 Focuser and Rotator, which includes M12 circular 5-wire threaded connector heads for environmental sealing.

The Series -5 Controller has been designed for:
  • Operating the Series-5 Focuser and Rotator
  • Powering the fans for temperature control on DeltaRho Astrographs, as well as CDK12.5 to CDK24 telescopes
  • Powering and controlling the telescope’s built-in anti-dew heating pads.
  • Includes M12 circular 5-wire threaded connector heads for environmental sealing.
  • Controlled via PlaneWave Interface 4 software with ASCOM support.
$800.00 each
View More Add-ons and Accessories

Recommended Add-ons and Accessories

Enter the quantity desired for each item and click the close button to continue with your purchase.
PW-2019001 - PlaneWave Piggyback Dovetail Bar for DeltaRho500
PW-2019001 - PlaneWave Piggyback Dovetail Bar for DeltaRho500
$748.00
Qty:
View Details
« Back to All Add-ons
PW-2019001 - PlaneWave Piggyback Dovetail Bar for DeltaRho500
About This Product
Piggyback dovetails for mounting accessories atop an optical tube. These dovetails accept Losmandy D-style accessories.
Piggyback Dovetail Assemblies come with mounting brackets and a Losmandy style dovetail for mounting accessories on your CDK14, 17, 20, 24, and 700.
Please Note- For CDK17 users: 170990 – is for the current CDK17 design with 10.24” of backfocus
PW-600182 - PlaneWave Keller EZ Saddle
PW-600182 - PlaneWave Keller EZ Saddle
$460.00
Qty:
View Details
« Back to All Add-ons
PW-600182 - PlaneWave Keller EZ Saddle
About This Product
The Keller EZ Saddle (600182) accepts Losmandy D-style dovetail rails such as the CDK12.5, CDK14, and DeltaRho 350. This saddle comes standard with the L-350 mount and can also be attached to the outside arm of any L-series mount for dual-mounted OTA configurations.

The PlaneWave Wide Saddle (200919) comes standard with L-500, L-550, and L-600 mounts for securing CDK17, CDK 20, CDK24, and DeltaRho 500 telescopes.
PW-600199 - PlaneWave Series-5 Controller
PW-600199 - PlaneWave Series-5 Controller
$800.00
Qty:
View Details
« Back to All Add-ons
PW-600199 - PlaneWave Series-5 Controller
About This Product
PlaneWave has designed a new 5-wire bus communication box that controls the Series-5 Focuser and Rotator, which includes M12 circular 5-wire threaded connector heads for environmental sealing.

The Series -5 Controller has been designed for:
  • Operating the Series-5 Focuser and Rotator
  • Powering the fans for temperature control on DeltaRho Astrographs, as well as CDK12.5 to CDK24 telescopes
  • Powering and controlling the telescope’s built-in anti-dew heating pads.
  • Includes M12 circular 5-wire threaded connector heads for environmental sealing.
  • Controlled via PlaneWave Interface 4 software with ASCOM support.
PW-6003148 - PlaneWave Adapter, Series-5 Focuser or Rotator to SecureFit Spacers
PW-6003148 - PlaneWave Adapter, Series-5 Focuser or Rotator to SecureFit Spacers
$173.00
Qty:
View Details
« Back to All Add-ons
PW-6003148 - PlaneWave Adapter, Series-5 Focuser or Rotator to SecureFit Spacers
About This Product
This adapter bolts to PlaneWave 7.125″ flanges and presents SecureFit bolt pattern.
Works with CDK14, CDK17, CDK20, CDK24, CDK700, and RC700 telescopes.
Also works with DeltaRho 350 optical tubes that have the Series-5 Focuser, or Rotator installed.
Occupies 0.25″ of backfocus.
PW-9995075 - PlaneWave USB to Ethernet Adapter
PW-9995075 - PlaneWave USB to Ethernet Adapter
$46.00
Qty:
View Details
« Back to All Add-ons
PW-9995075 - PlaneWave USB to Ethernet Adapter
About This Product
PlaneWave USB to Ethernet adapter.
QTY:  
Price as Configured: $21,500.00

Product Help
Need help deciding?
Tell us what you're looking for, and we’ll point you in the right direction. .

Optical System

Optical Design Corrected Dall-Kirkham (CDK)
Aperture 350 mm
Focal Length 1050 mm (41.34 inch)
Focal ratio f/3
Central Obstruction 56 % by diameter
Back Focus from Mounting Surface 5.651 inch (143.535 mm)
Weight 46 lbs (21 kg)
OTA Length 23 inch (584 mm)
Optical Performance 4.9 micron RMS on-axis, 6.2 micron RMS at 23 mm off-axis, and 7.6 micron RMS at 30 mm off-axis
Telescope Cage Carbon fiber truss poles with carbon fiber shroud
Optimal Field of View 60mm image circle

Secondary Mirror

Diameter 190 mm (7.48 inch)
Material Fused silica (quartz)
Shape Spherical
Coating Enhanced aluminum – 96%

Primary Mirror

Optical Diameter 13.78 inches (350mm)
Outer Diameter 14.5 inches (468.3mm)
Shape Prolate ellipsoid
Material Fused silica (quartz)
Coating Enhanced aluminum – 96%

Lens Group

Diameter 110 mm (4.33 inch)
Number of lenses Three
Coating broadband AR Coatings (less than .5% reflected from 400 to 700nm)

Standard Features

Corrected Cassegrain The corrected design yields a flat field free from off-axis astigmatism, coma, and field curvature.
Carbon Fiber Truss Design Minimizes thermal expansion which causes focus shift with changes in temperature.
Dovetail Expansion Joint Allows for the difference in thermal expansion between carbon fiber and aluminum. The expansion joint allows the aluminum dovetail expand and contract without stressing the carbon fiber lower truss
Cooling Fans Three cooling fans blow air inside the back of the telescope. This helps the telescope to reach thermal equilibrium quickly. The fans are controlled by a computer if the optional Electronic Focus Accessory (EFA Kit) is purchased.
Delta-T Ready For added dew prevention, the DR350 is internally wired with polyimide film heater pads and temperature sensor, ready to be controlled with the optional Delta-T controller.