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73991 GPD2 Equatorial Mount

Discontinued June 2014

GPD2A high precision equatorial mount suitable for long exposure astrophotography

The GPD2 equatorial mount has the same compact design as the GP2 mount but benefits from additional features and higher maximum payload weight.

The RA and DEC axes are made of steel and the worm wheels are made of brass for durability. Both the RA and DEC worm screw gears are machined to a very precise tolerance to minimise periodic error.

The mount comes equipped with polar axis scope with a built-in variable intensity illuminator.

Accepts payloads up to 10kg.


Product features

Polar alignmentAccurate polar alignment
The mount includes setting circles to position Polaris within the eyepiece field of view.


Polar ScopeBuilt in polar scope
The 6x20mm polar axis scope can be used in both the northern and southern hemispheres.
There is a built-in variable intensity illuminator for the polar axis scope.



Motor drive upgradeMotor drive upgrade
The D3M motor controller set can be added to the mount.



Specifications GPD2 Mount
R.A. slow motion axis 144-tooth wheel gears whole circle movement
DEC slow motion axis 144-tooth wheel gears whole circle movement
R.A. graduations 10 minutes increments
DEC graduations 2° increments
Polar axis scope 6x20mm, wide 8° field of view
Altitude adjustment 0° to 62°, (2° increments)
Azimuth adjustment Double-screw fine adjustment
Controller Optional, with Star Book S set or D2M motor drive set
Maximum loading weight 10kg (22lb) approx, excluding counterweight
Counterweight 1.9kg (4.2lb) x1 and 3.7kg (8.15lb) x1
Weight 8.5kg (18.7lb), without counterweight


Optional Accessories
Please call for information regarding spares and accessories.


Please note that the later versions of the GP series mounts had a 45mm footing. Previously, the footing was 60mm diameter. Click here to find out more information about these changes.