
PlaneWave DRL350 Observatory System
Starting Price: $36,500.00
Price as Configured: $36,500.00
Price as Configured: $36,500.00
Brand: PlaneWave Instruments / SKU: PW-140131Q
The DeltaRho 350 Telescope System from PlaneWave Instruments is crafted for elite astronomers and astrophotographers who demand the best. Created with a passion for excellence, the DeltaRho 350 Telescope System brings groundbreaking features to advanced imaging, offering unmatched versatility across a spectrum of scientific and communicative applications. The DeltaRho 350 Telescope System from PlaneWave Instruments features a 350mm wide-field, f/3 aperture. This premium CDK optical tube combines a DeltaRho 350 with a L-350 direct drive mount.
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.

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Mount System
Mount Weight | 110 lbs (50 kg) |
Max. Load Capacity | 100 lbs (45 kg) |
Latitude Range | 0 to 90 degrees, Northern and Southern hemispheres |
Cable Management | Equipment cables can be wired through mount |
Control System
Control Electronics | PlaneWave Interface dual axis telescope control |
User Interface | PlaneWave Interface 4 (PWI4) Control Software with integrated PointXP mount modeling software |
Homing Sensors | Home position sensors are included allowing the mount can find its home position on power up. |
Slew Rate | 20 degrees per second (standard); 50 degrees per second (maximum), both axes |
Power Requirement | Accepts 120 to 240 VAC. Supplied with 120 VAC 15A IEC Type B Regulated Power Adapter. |
Optical System
Aperture | 350 mm |
Focal Length | 1050 mm (41.34 in.) |
Focal Ratio | f/3 |
Central Obstruction | 56 % by diameter |
Backfocus from Mounting Surface | 5.6 in. (142.24 mm). This distance includes refraction from filters. |
Weight | 46 lbs (21 kg) |
Motion Control
Motor – Azimuth and Altitude | Direct Drive 3 Phase Axial-Flux Torque Motors |
Encoder – Azimuth and Altitude | 152mm stainless steel encoder ring with reader built into the azimuth and altitude axes. 18,880,000 counts per revolution (0.069 arcsecond resolution). |
Motor Torque | Approximately 20 ft-lbs continuous; 50 ft-lbs peak |
Drive Electronics | Industrial grade, off-the-shelf brushless motor drives for each axis with custom designed interface card |
Telescope Control Software | Uses PWI4. Incorporates PointXP mount modeling software by Dave Rowe. All ASCOM compatible. |
System Performance
Pointing Accuracy | <10 arcsecond RMS with PointXP Model |
Pointing Precision | 2 arcseconds at sidereal velocity |
Tracking Accuracy | 0.3 arcseconds over a 5-minute period at sidereal velocity |
System Natural Frequency | 10 Hz or greater |