Products in the Same Family
Why Purchase from All-Star Telescope?
Free Expert Support
Whether you are a first timer needing help with setting up or an enthusiast that can't quite make that one thing work, our expert staff are ready to support your needs. With decades of knowledge and first hand experience we've been there and we can help you through it!
Stress Free, Secure Transactions
You can trust purchasing and delivery with All-Star Telescope. All of our transactions are 100% secure and Level 1 PCI DSS compliant thanks to Shopify's ShopPay platform. For additional protection, we insure 100% of the value of every shipment we make. If it get's lost during shipment, we replace it. If it gets damaged during shipment, we replace it. We make sure your product arrives exactly as you would expect it to; we promise.
We also ensure privacy protection. We never keep any of your credit card information on file and any of your personal data is stored according to our policies.
30 Day Return Policy
Buy with confidence knowing that we accept returns up to 30 days after purchase. We want you to have something you will actually use and we are confident that we keep good quality products in our store with No Junk.
Price Match Promise
Shipping around for the best price is tough, we make it easier by offering the best pricing in the market. But if you find a better price on an in-store item somewhere else we will match it!
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Why we love the ZWO AM3 Harmonic Drive Mount (ZWO-AM3)
Product Description
Mount Body
The traditional equatorial mount requires heavy counterweights. It can be very difficult to keep balance in RA and DEC directions, also inconvenient for transit and storage, which bring the amateur astrophotographers a lot of pain when they are out for imaging.
Some of the strain wave geared drive mounts are relatively simple in functions, insufficient in load capacity, also not very stable in use.
The internal structure of the body optimized with the strain wave gear reducer and synchronous belt, bringing more accurate control and an amazing reduction ratio of 300:1.
Astronomy-Dedicated Strain Wave Gear
ZWO jointly developed the strain wave gearing system with well-known domestic manufacturers based on the actual needs of astrophotographers. It comes with very low periodic errors, smooth gearing and high torque. The guiding accuracy is 0.5-0.8 arc seconds, which makes the AM5 mount extremely suitable for astrophotography.
5.5kg Mount Weight, Large Load Capacity
While the portability is very important, the stability is also essential in use. We don't blindly pursue the lightweight of the mount body; we are more so along the lines of stability for entire use.
The capacity of this mount is 13kg without any counterweights attached, and increases to 20kg when using (up to) a 5kg counterweight.
Note: the counterweight should be secured on a counterweight bar of no more than 25cm in length.
Equatorial Mount / Altazimuth Mount
- Equatorial Mount Mode: Suitable for tracking and photographing objects
- Altazimuth Mount Mode: Suitable for observing objects
- You can switch between these two methods with the app, or through the hand controller.
Other Features
- Status Light Indicator
- Red Light: Indicated equatorial mount mode
- Green Light: Indicates altazimuth mount mode
- All-Round 0-90 Degree Pitch Angle
- Gear 1: Adjust the pitch angle grip to achieve any degree between 0 and 60
- Gear 2: Loosen the hex-head screw, then adjust the pitch angle grip to achieve any degree between 45 and 90.
- Wireless Control
- Tonight's Target, GOTO, Live Preview, and so many great functions can be achieved through your phone.
- Rocker-Style Hand Controller
- Comfortable touch and easy to use, integrated with WiFi network allows for wireless control.
- Power Failure Protection
- ZWO AM5 mount is equipped with a brake design in case of a sudden power failure, which will prevent the telescope from falling and being damaged.
- Seamless Linkage with ASAIR
- ASIAIR can control AM5 via wired or wireless connection. The ASI package gives customers the best astrophotography experience.
What's in the Box
Specifications
| Mount type | Equatorial mount |
| Mount mode | Equatorial mode / Altazimuth mode |
| Drive | Strain wave gear + Synchronous belt (Reduction ratio: 300 : 1) |
| Periodic error | <±20° |
| PE duration | 432 S |
| Drive (RA) | NEMA42 stepper motor + Model No. 17 (Reduction ratio: 100:1) + Brake |
| Drive (DEC) | NEMA35 stepper motor (Reduction ratio: 100:1) + Model No.17 |
| Load capacity | 13kg without counterweight 20kg with counterweight |
| Weight | 5kg |
| Latitude adjustment range | 0°-90° |
| Azimuth angle adjustment range | ±10° |
| Dovetail | Losmandy & Vixen 500g |
| Interface thread of counterweight shaft | M12 |
| Stepper motor resolution | 0.17" |
| Max slew speed | 6°/S |
| Slew rate | 0.5x, 1x, 2x, 4x, 8x, 20x,60x, 720x, 1440x |
| Power port | DC5.5-2.1 (12V-3A) |
| Power consumption | 12V / 0.386A (Standby) 12V / 0.58A (Tracking) 12V / 1.7A (GOTO) |
| Guide port | ST4 |
| Communication interface | USB/WiFi |
| Zero position | Mechanical |
| Operating temperature | -15°C - 40°C |
| Power failure protection | Yes |
