Conceived, designed, and built for entry-level to intermediate astrophotographers, the IEQ45-AZ Pro Dual EQ/AZ GoTo Mount from iOptron is outfitted with precision stepper motors, zero-backlash gears, the ability for you to program out the Periodic Error Correction (PEC) common to all worm gears, and a computer controller to provide an ideal platform for imaging. Its unique mounting capabilities allow it to be set up in an equatorial configuration for the smooth and accurate single-axis tracking required for long-exposure astrophotography, or as an alt-azimuth mount to make set up and alignment fast and easy so you can get observing quicker. An additional advantage of using the EQ mode for astrophotography, versus alt-az, is that when tracking in this configuration there is no field rotation, so the image won't shift over time, for clearer images without star streaks.
The mount has a dual dovetail saddle that fits both Losmandy- and Vixen-style plates to make it compatible with the two most popular mounting configurations on the market. It has a maximum payload capacity of 45 pounds in EQ mode or 55 + 35 pounds when dual-mounted in alt-az mode, and it can easily hold large telescopes, counterweights, and accessories. A built-in 32-channel GPS receiver sends your day/time/location information directly to the Go2Nova hand controller, so the telescope can be set up quickly. This version of the mount replaces the standard tripod with an adjustable-height hybrid tri-pier. This innovative design combines the stability and vibration-resistance of a pier with the portability and adjustable height of a tripod. When using the tri-pier, the mount becomes steadier and more reliable for long-exposure astrophotography.
The included dark-field illuminated AccuAligning polar axis scope installs through the body of the mount for accurate EQ alignment, and alignment verification and correction during observation and imaging sessions.
The dual-axis stepper motors are controlled by the Go2Nova hand controller. This system has an internal database of 358,000+ celestial objects, with 60 user-defined objects to program yourself. The hand controller has updateable firmware through the built-in serial port. With nine slew speeds and automatic tracking capabilities, finding and keeping objects centered in the field of view is easy no matter if you're viewing the fast-moving Moon or much slower deep space subjects.