Appendix A. Technical Specifications

Mount

German Equatorial Mount

Payload

75 lb (34kg)

 

Mount weight

52 lb (23.6kg)

 

Right Ascension worm wheel

Φ182mm, 228 teeth bronze

 

Declination worm wheel

Φ154mm, 192 teeth bronze

 

Right Ascension axis shaft

Φ60mm steel

 

Declination axis shaft

Φ45mm steel

 

Right Ascension bearing

Φ90mm angular contact ball bearing

 

Declination bearing

Φ68mm angular contact ball bearing

 

Worm gears

Φ15.6mm steel

 

Motor drive

Planetary Gear Reducer DC servo with encoder

 

Resolution

0.1 arc seconds

 

Latitude adjustment range

15º ~ 70º

 

Azimuth adjustment range

± 7.5º

 

GPS

Internal 32-channel GPS

 

Polar Scope

Yes. (with dark field illumination)

 

Accuracy

2 arc minutes

 

Hand Controller

GoToNova® 8406 with 580,000 objects database

 

Tracking controller

Double closed-loop tracking with Renishaw high

 

resolution encoder feedback

 

Tracking error

± 1 arc second max

 

PEC

Real-time automatic

 

Speed

1×,2×,8×,16×,64×,128×,256×,512×,MAX(~4º/sec)

Counterweight shaft

Φ31.8 mm (included)

 

Counterweight

16.5 lb (7.5kg) X 2 stainless steel (Φ150X52 mm,

 

included)

 

Base diameter

Φ200 mm

 

Mounting plate

Black anodized aluminum (150X380mm, included)

 

Dovetail

3.5"VIXEN Saddles included

 

Power consumption

0.4A(Tracking), 1.2A(Slew)

 

Power requirement

12V DC(11 ~ 15V), 3Amp, center positive

 

USB port

Yes (on hand controller)

 

RS232 port

Yes (on control box)

 

Autoguide port

Yes (ST-4 compatible)

 

Firmware upgrade

Yes (main board and hand controller)

 

PC computer control

Yes (ASCOM)

 

Operation temperature

-20ºC ~ 40ºC

 

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iOptron IEQ75-GTTM instruction manual Appendix A. Technical Specifications, Gps

IEQ75-GTTM specifications

The iOptron IEQ75-GT is an advanced equatorial mount designed for amateur astronomers and astrophotographers seeking precision and reliability in their observations. This mount stands out due to its robust construction and innovative technology, making it ideal for a wide range of astronomical applications.

One of the main features of the IEQ75-GT is its impressive payload capacity. With the ability to support up to 75 pounds, it can easily accommodate a variety of telescopes and imaging setups, enabling users to explore both deep-sky objects and planetary details. The mount’s solid aluminum construction ensures stability, which is critical for long exposure astrophotography.

The IEQ75-GT is equipped with iOptron's signature GoTo system, allowing for easy navigation across the night sky. With its celestial database that includes over 200,000 objects, users can effortlessly locate and track their desired targets. The advanced GoTo technology also includes a built-in GPS, simplifying the alignment process and providing precise location data for better tracking.

Another notable feature is the mount's dual-axis tracking, which ensures that celestial objects remain in view, even during long exposure imaging sessions. The high-resolution encoders and closed-loop servo motors provide smooth movement and accurate tracking, reducing the risk of star trailing during exposures.

The mount is designed with portability in mind. Its compact size and lightweight construction make it easy to transport, making it a great choice for both backyard observations and remote dark-sky outings. The quick-release system allows for fast setup and teardown, enhancing convenience during stargazing sessions.

iOptron also incorporates unique smart technology in the IEQ75-GT. The mount is compatible with a range of mobile applications, allowing users to control the mount and access additional features directly from their phones or tablets. This level of integration enhances the observing experience and makes it easier to explore the night sky.

Additionally, the IEQ75-GT features a built-in autoguider interface, facilitating long-exposure astrophotography without the need for additional guiding equipment. The mount’s versatility and user-friendly design make it an excellent choice for both novice and experienced astronomers.

In summary, the iOptron IEQ75-GT combines high payload capacity, advanced GoTo technology, sturdy construction, and smart features to deliver a powerful astronomical platform. Whether you're passionate about stargazing or astrophotography, the IEQ75-GT is a worthy investment for any astronomy enthusiast, providing the reliability and precision needed for a successful observing experience.