Northmere Bulwark EQ mount, head only

Specifications

Description

The Bulwark is a compact equatorial mount for small refractors, Maksutovs, and short reflectors with a total load up to 4 kg. Its right ascension axis is aligned with the celestial pole, so the telescope can turn in a single direction to follow the stars. Once the mount is polar aligned, targets stay centered in the eyepiece for longer, which helps on faint nebulae and galaxies at medium power.

Polar alignment uses a built-in polar scope with an illuminated reticle. Set the latitude scale to your site, then adjust the altitude and azimuth knobs until Polaris sits at the marked position in the reticle. Slow-motion rods on both axes handle fine pointing without touching the tube, and tension knobs set how freely each axis moves. The head weighs 3.2 kg and mounts on a standard 3/8-16 thread underneath for photo tripods, with a 1/4-20 adapter included.

The sidereal drive runs on the right ascension axis from a 12 V DC input or eight AA batteries, and it turns the tube at the rate of the sky. Declination remains a manual axis, so you recenter drift in that direction by hand. Keep the total load, including a diagonal, eyepiece, and finder, well below the rated payload. Longer tubes need a counterweight on the 1-inch shaft, and balancing the tube before each session keeps the drive from working against an unbalanced load.

Telescopes up to about 80 mm in aperture and 1.5 kg in weight are a good match for the Bulwark. It fits visual observing at medium and high power and short-exposure imaging with a light camera. For long-exposure astrophotography, a heavier equatorial mount gives steadier guiding.

About this configuration

Each configuration of the Northmere Bulwark EQ mount uses the same mount head; the options change what it stands on and what ships with it. This configuration is the mount head alone, so you supply a tripod or a pier with a matching top plate. Buying the head only makes sense when you already own a sturdy tripod or a permanent pier in the garden. No add-on is included, which suits observers who already carry their own cases, bars, and power supplies.

The white finish stays cooler in sunshine, which helps if you set up the mount in the afternoon. The 2026 edition carries the mechanics over unchanged and updates small parts such as the knobs and covers. The payload rating in the specifications applies to the mount head in every configuration of the Bulwark line.

What's in the box

• Equatorial mount head with Vixen-style saddle
• Polar scope with illuminated reticle
• Two slow-motion control rods
• 1-inch counterweight shaft
• 12 V DC power cable
• Accessory tray

Compatibility notes

• Accepts Vixen-style dovetail bars up to 45 mm wide.
• The 3/8-16 base thread fits most photo tripods; a 1/4-20 adapter is included.
• Suits telescopes up to about 80 mm aperture and 1.5 kg for steady views.