"The Three-star alignment accurately corrects for cone error and subsequent GO-TO accuracy was impressive." BBC Sky At Night Magazine
"I like these mounts, they are solid, well thought out and work quietly and effectively" Astronomy Now Magazine
INCLUDED IN THE BOX
- HEQ5 Mount Head
- Pre-installed Rowan Belt Mod Kit
- 1.75" Stainless Steel Tripod
- 2x 5kg Counterweights
- SynScan Handset & Cable
- 12v Cigarette DC Power Cable
- Vixen-Style Medium Dovetail Bar
Supplied with pre-installed Rowan Belt Mod Upgrade Kit.
A Rowan Belt Mod upgrade replaces the HEQ5 Pro's original spur gear drive train with timing belts. This reduces spur gear errors, which reduces tracking errors. Slewing is also much quieter (the 'grinding' noise that regular spur gears produce is significantly reduced). The pulley ratio is the same as the factory gears so Sky Watcher SynScan hand controller functions are unaffected.
We also offer the pre-fitted Rowan Upgrade together with a clean & regrease. The wheel and worm gears are removed, cleaned, regreased then refitted. Backlash is adjusted to the minimum necessary to function. (Mounts using the Worm & Wheel system require some backlash). Is a clean and regrease necessary for a new HEQ5 mount? Probably not. The days when you might find swarf and thick black gluey grease in a HEQ5 are long gone but we are still occasionally asked for a clean & regrease so we offer the service. Over 90% of the improvement comes from the Rowan upgrade alone.
The HEQ5 Pro mount is considered by many to be Sky-Watcher's 'sweet spot'. A mount costing less than £1k with an impressive combination of ease-of-use, stability and tracking performance. It is probably the mount most recommended to someone wanting to begin astrophotography.
The SynScan computerised handset's two-line illuminated LCD screen is easy to read and navigate. One-star, two-star and three-stars alignment routines are available and are easy to use. All work but three-star alignment is the 'gold standard' because it corrects for cone error. Once aligned, SynScan Go-To will automatically place objects in the eyepiece field-of-view wherever they are in the sky. Think Sat-Nav for astronomers! You can also control the mount from a laptop or desktop PC via the handset's RS-232 serial port (cable available separately) or, even easier, connect the mount directly using a Lynx Astro EQDIR adapter.
Similar to Sky-Watcher's larger EQ6 Pro, the HEQ5’s counterweight shaft slides neatly into the body of the mount for easy storage and transportation. It also has a built-in polar alignment scope which makes it easier to align the polar axis of the mount to the Earth’s axis of rotation (whilst not strictly necessary for Go-To pointing accuracy, tracking is improved if the mount is polar-aligned). Looking through the polar scope you will see a graphic that enables you to offset quickly and easily from Polaris to the true north celestial pole.
Guide to choosing a Sky-Watcher HEQ5 mount
Compatible with EQMOD using a Lynx Astro EQDIR adapter.
Using EQMod article by Steve Richards
- Payload capacity: 11kg for imaging, 15kg for visual
- Positioning Accuracy up to 1 arc minute. Accuracy enhanced by software collimation error (mount mechanical error) compensation.
- Stepper motors with 1.8° step angle and 64 micro steps driven.
- Slewing speed up to 3.4°/sec (800X).
- ST-4 Auto Guider Interface for astro-photography.
- Guiding speed selectable from 0.25X, 0.50X, 0.75X, or 1X.
- Object database containing complete M, NGC, and IC catalogues.
- Minimal vibration for steady long-exposure photography.
- Weighs 10kg without counterweights
- 35cm tall without tripod