13.5 kg without counterweight; 18 kg with counterweight
Mount weight
3.4 kg
Latitude range
0 to 90 degrees
Capacity
Payload-to-weight ratio
5.3:1
Motion
Slew rate
1,800x (7.5°/s) at 16 V DC
Periodic error
±2.5 arcsec (430 sec period)
Encoder
Renishaw high-resolution encoder on RA axis
Electronics
Controller
Computerized GoTo control
Power
DC 12-16 V
Mechanical
Interface
ASCOM Driver
Astrophotography Fit
A general-purpose GoTo mount that should be chosen by realistic imaging payload, not headline capacity alone.
RST-135E Weightless Mount is a flagship GoTo equatorial mount for computerized tracking and guiding.
For long-exposure astrophotography, use a conservative imaging payload. The telescope, camera, guide hardware, dew heaters, dovetails, and cables all count, and guiding performance matters more than the catalog payload number.
Best paired with
Autoguided refractors or corrected reflectors within conservative payload limits
Stable tripod or pier and balanced counterweights
Computer or hand-controller workflow with good polar alignment
Not recommended for
Payloads at the rated maximum for imaging
Users who need an airline-portable rig above all else
Long focal length work without guiding and careful balance
Where To Buy
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