Delete All Data

Use or button to move the cursor to “Delete All Data” line, and press ENTER. Press ENTER to confirm the deletion.

Press BACK to back to main menu.

5.4. Sync to Target

This operation will match the telescope's current coordinates to Target Right Ascension and Declination. After slew to an object, move the cursor to “Sync to Target” and press ENTER. Follow the screen to do the sync. Using this function can improve the GOTO accuracy in nearby sky. Multiple syncs can be performed if needed.

“Sync to Target” will only work after “Select and slew” was performed. You may need using SPEED key to change the slewing speed to make the centering procedure easier. A default slew speed is 2X.

5.5. Set Up Controller

5.5.1. Set Up Time and Site

Please refer to section 4.2.

5.5.2. Set Display Info

Adjust LCD Contrast

Use arrow keys to adjust LCD display contrast. Press ENTER.

Adjust LCD Contrast

LCD Back Light.

Use arrow keys to adjust LCD screen back light intensity. Press ENTER.

LCD Back Light

Keypad Backlight.

Use arrow keys to adjust keypad backlight. Press ENTER.

LCD Back Light

5.5.3. Set Key Beep

Turn the key beep on/off.

5.5.4. Reset All

Reset all settings to factory default data.

5.6. Align

This function is used for align the telescope. Before star alignment, please make sure the mount is well leveled. The system also provides “One Star Align” and “Two Star Align”. Either one can be selected for telescope alignment.

5.6.1. One Star Align

From the main menu, select “Align”. Select “One Star Align” and press ENTER. Three most popular objects, such as Moon, a planet or a bright star that are above the horizon will be provided for selection. Use

or button to select an alignment star and press ENTER. Then manually slew the telescope to the object and center the object in your eyepiece using ◄ ► ▲ or ▼ key. Press SPEED button to adjust the slew speed. Then press ENTER to complete the alignment. Or press the BACK key to cancel the process.

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iOptron 8504, 8503, 8502, 8500 instruction manual Sync to Target, Set Up Controller, Align

8500, 8502, 8504, 8503 specifications

The iOptron 8500 series telescopes, encompassing models 8500, 8502, 8503, and 8504, represent a significant advancement in astronomical observation technology. Each of these telescopes is designed to cater to both amateur astronomers and experienced astrophotographers, ensuring enhanced user experience and performance.

At the heart of the iOptron 8500 series is the innovative GoTo mount technology. This feature allows users to automatically locate and track celestial objects with remarkable precision. By simply entering the desired coordinates or selecting objects from a database, users can spend more time observing rather than searching for objects in the night sky.

Another defining characteristic of the 8500 series is the incorporation of high-quality optics. Each model features advanced multicoated glass for brighter and sharper images. The telescopes also come with a range of focal ratios that enhance performance for various observational needs, such as planetary observation and deep-sky imaging. This enables users to capture stunning images of celestial bodies with clarity and detail.

The 8500, 8502, 8503, and 8504 models also boast user-friendly interfaces and controls. The telescopes are equipped with intuitive hand controllers that allow for easy navigation through numerous astronomical objects and features. Advanced tracking capabilities ensure that the telescopes can maintain their focus on targets, making them ideal for long-exposure astrophotography.

In terms of portability, the iOptron 8500 series is designed to be lightweight without sacrificing sturdiness. This is particularly beneficial for those who travel to dark skies for better viewing conditions. The telescopes also feature quick-release mounts, making it easy to assemble and disassemble for transport.

Powering these telescopes is a reliable battery system that supports extended observation nights. Users can easily connect to external power sources or opt for portable power packs, enhancing the versatility of the telescopes during field use.

The 8500 series is also compatible with various accessories, including cameras and filters, allowing for a customized observing experience. Whether focused on planetary details or capturing the intricate structures of deep-sky objects, the iOptron 8500 series provides the tools necessary for an extraordinary astronomical journey.

In summary, the iOptron 8504, 8502, 8503, and 8500 telescopes deliver a robust combination of advanced technology, user-centered design, and excellent optical performance, making them a valuable addition to any astronomer's toolkit.