iOptron GEM28 1.5 Mount with AccuAlign Tripod
The iOptron GEM28 1.5 is built for anyone who likes to be on the road with their telescope. Light weight, but strong enough to carry serious equipment. With a carrying capacity of 12.7 kg and a net weight of only 4.5 kg, this is an ideal choice for mobile astrophotography and visual observations.
Cleverly designed for ease of use
The GEM28 was designed with one goal: to let you observe more and tinker less. Everything about this mount feels intuitive. Thanks to the AccuAlign pole locator Simply align with the celestial pole, even if you can't see the North Star.
The built-in WiFi system enables wireless control via smartphone, tablet or laptop. No hassle with cables. And with the Go2Nova® hand control quickly find any object in the night sky - from the Moon to distant nebulae - at the touch of a button.
Accurate tracking, sharp images
With his low periodic error (< ±10 arc seconds) the GEM28 accurately follows your target. That means sharper images, even at long exposures. The stepper motors run smoothly and consume little power, so your sessions last longer without interruptions.
The advanced PEC correction learns from previous movements to continuously improve tracking accuracy. So your photos stay sharp, night after night.
Powerful GoTo technology
The GEM28 is equipped with iOptron's latest Go2Nova® technology, one of the most precise GoTo systems on the market. With a database of more than 212,000 celestial bodies the sky is never too small. Search, track and observe - quickly, smoothly and reliably.
Robust and mobile
The CNC-machined mount made of cast steel feels solid but remains surprisingly portable. The sturdy 1.5″ stainless steel tripod legs provide stability even in windy conditions. Large, easily accessible latches make setup easy - even with gloves on.
In short, the GEM28 is the perfect travel companion for those looking for a compact but capable GoTo mount.
What we recommend
✓ Visual observation: excellent fit
✓ Astrophotography: very suitable (mobile use)
✓ Beginners and advanced users: easy to use
✗ Heavy observatories: not intended for permanent setup
Specifications
General
| Feature | Description |
|---|---|
| Series | GEM28 |
| Type of mount | Equatorial (GoTo) |
| Carrying capacity | 12.7 kg |
| Own weight | 4.5 kg (mount), 5 kg (tripod) |
| Total set weight | 20 kg |
| Color | Black-Red |
Controls & Functionality
| Feature | Description |
|---|---|
| Operating System | Go2Nova® |
| Database | 212,000 objects |
| Alignment | 1-, 2-, or 3-star alignment |
| PEC correction | Yes, permanently |
| Tracking speeds | Sidereal, sun, moon |
| Autoguiding port | ST-4 compatible |
| WiFi | Built-in |
| Computer connection | USB |
| Firmware update | Via USB |
Mechanical
| Feature | Description |
|---|---|
| Drive | Wormwheel |
| Worm Gear Equipment | Brass (144 teeth) |
| Worm Material | Aluminum |
| Latitude range | 10°-70° |
| Counterbalance(s) | 1 × 4.5 kg |
| Counterweight bar | 20 mm steel |
Tripod
| Feature | Description |
|---|---|
| Material | Stainless steel |
| Maximum height | 117 cm |
| Spreader | Cast steel with accessory holder |
Electronics & Power
| Feature | Description |
|---|---|
| Nutrition | 12V DC, 5A |
| Current consumption (open circuit) | 0,9 A |
| Operating temperature | -10°C to +40°C |
Optional
| Accessory | Description |
|---|---|
| GPS | 32-channel module |
| iGuider | Autoguidance system |
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