PlaneWave DRL350 Telescope System

PlaneWave DeltaRho 350 Telescope System

The DeltaRho 350 Telescope System from PlaneWave Instruments is crafted for astronomers and astrophotographers who demand cutting‑edge speed and versatility. Combining a fast f/3 optical tube with the precision of a direct‑drive mount, the DRL350 excels in wide‑field imaging, space situational awareness (SSA/SDA), and deep‑sky observation.

Built with lightweight and durable materials, it maintains high image quality even under variable environmental conditions. Integrated features such as advanced coatings, dew control, and collimation tools make this a premium observatory instrument ready for demanding scientific applications.

Key Specifications

Aperture: 350 mm
Focal Length: 1050 mm (41.34 in)
Focal Ratio: f/3
Central Obstruction: 56% by diameter
Back Focus from Mounting Surface: 5.6 in (142.24 mm) — this includes refraction from filters
Mount System: L‑350 direct drive mount
Mount Maximum Load Capacity: 100 lbs (45 kg)
Mount Weight: 110 lbs (50 kg)
Clear OTA Weight: 46 lbs (21 kg)

Motion Control & Encoders: Azimuth & Altitude direct‑drive 3‑phase axial‑flux torque motors; 152 mm stainless steel encoder ring; 18,880,000 counts per revolution (≈0.069 arcseconds resolution)

Pointing & Tracking Accuracy: <10 arcsecond RMS with PointXP model; 2 arcseconds at sidereal velocity; tracking accuracy 0.3 arcseconds over a 5‑minute period

System Natural Frequency: 10 Hz or greater

Drive & Speed: Slew rate 20°/s standard; up to 50°/s maximum

Performance & Applications

- Wide‑Field Imaging Excellence
Fast f/3 optics deliver very short exposure times and large fields of view, ideal for survey work and capturing large nebulae or transient phenomena.

- Scientific & Operational Versatility
Suits both research institutions and SSA/SDA operations due to this system’s large image circle, fast optics, and ability to use custom coatings for specialized work.

- Stability and Thermal Reliability
Carbon fiber tube and robust mechanical structure reduce thermal expansion and maintain image quality through changing temperatures. Integrated dew control helps prevent condensation issues.

- Precise Motion & Control
High‑count encoders and direct drive design yield very fine resolution in pointing and tracking. Controlled via PlaneWave Interface 4 software including PointXP mount modeling.

- Adaptability for Accessories & Heavy Payloads
Capable of handling up to 100 lbs, making the DRL350 suitable for demanding imaging setups, filter wheels, large sensors, and dual‑instrument configurations.