iOptron - ZEQ25 "Z Balanced" Equatorial Mount

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The iOptron “Z” design mount puts the weight of the payload at the center of gravity allowing for greater natural stability.

SKU: IOP-7101
Manufactured by:

Product Description

The new iOptron “Z” design mount puts the weight of the payload at the center of gravity allowing for greater natural stability. Given its payload capacity, this means the “Z” designed mount is unusually light—a nice benefit when setting up at a remote site. Other features include an adjustable counterweight bar to prevent obstruction with the tripod. And polar aligning is quick and accessible all the time since the polar scope is not blocked by the declination shaft.

The ZEQ25 is equipped with the most advanced GOTONOVA GOTO technology, making it one of the most powerful and accurate GOTO mounts available. Its database includes over 59,000 objects—its Go2Nova Hand Controller is intuitive to use and its large 4-line LCD screen simplifies the process of setting telescopes and locating objects. The ZEQ25 – a new category of viewing and astrophotography.




ioptron equatorial mount zeq25 goto slew telescope optics

  • A new design “balanced” equatorial mount for maximum payload and minimum mount weight
  • Specialized astrophotography mount ideal for entry-level and intermediate Astro-photographers
  • Payload of 27 lbs (12.3 kg) with the mount-only weight of 10.4 lbs (4.7 kg)
  • Spring loaded gear system with customer adjustable loading force
  • Gear switches on both R.A. and DEC axes for easy balancing when disengaged
  • Adjustable counterweight shaft for 0º latitude operation
  • Dual-axis servomotor with enhanced optical encoder for precise GOTO and accurate tracking
  • iOptron AccuAligning calibrated polar scope with dark-field illumination and easy polar alignment procedure, allowing for fast and accurate polar alignment
  • Polar alignment routine for those who can’t see the Pole Star
  • Go2Nova 8408 controller with Advanced GOTONOVA GOTO Technology
  • Periodic error correction (PEC)
  • Integrated ST-4 autoguiding port
  • Built-in 32-channel Global Positioning System (GPS)
  • Serial port for firmware upgrade and computer control
  • Spring loaded Vixen-style saddle
  • Standard 1.5 inch heavy-duty stainless steel tripod (5kg), optional 2 inch tripod (8kg)
  • Die-cast metal tripod spreader with accessory tray
  • Optional PowerWeight rechargeable battery pack






Name iOptron - ZEQ25 "Z Balanced" Equatorial Mount
Manufacturer iOptron
Model IOP-7101
Alignment Procedures Polar Alignment, 1-star Align, Multi-Star Align, Solar Sys Align, Pole Star Align
Azimuth Adjustment ± 10º
Bearings Ø55mm Ball Bearing
Computer Hand Control Go2Nova® 8408 with 59,000 objects database
Computer Interface Go2Nova 8408 (59.000+)
Counterweights 10.4 Ibs
Counterweight Shaft F20mm x 300mm (0.7 kg)
Declination Worm Wheel F88mm, 144 teeth aluminum
Declination Axis F35mm steel
Dovetail Compatibility Vixen-style (Spring loaded)
Gear Spring Loaded (adjustable)
GPS Built-in 32 Channel GPS
Firmware Upgrade Yes
Latitude Adjustment 0º ~ 60º
Level Indicator Level bubble
Motor Drive Planetary Gear-reduction DC Servo Motors
Mount “Z Balanced” Equatorial Mount
Mount Weight 10.4 Ibs
Operating Temperature -10ºC ~ 40ºC
Payload Capacity 27 Ibs maximum
PC Computer Control Yes (ASCOM)
Periodic Error Correction PEC
Power Consumption 0.25A(Tracking), 0.75A(GOTO)
Power Requirements DC 12V (9~14V) 1.5A
Resolution 0.14 arc seconds
Right Ascension Axis F35mm steel
Right Ascension Worm Wheel F88mm, 144 teeth aluminum
Serial Port Yes (on hand controller)
Slew Speeds 9 speeds, 4.5° /sec max
Speed 1×,2×,8×,16×,64×,128×,256×,512×,MAX(~4.5º/sec)
Tracking Rates Auto Sidereal, Solar and Lunar
Transmission Synchronous belt/Gear
Tripod 1.5" Stainless Steel, optional 2"
Warranty Two year limited


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No matter what I do the mount is heavy to the east. Ioptron says this is common at low latitudes and will help tracking. Hmmm...

If the motors hold out with the excess directional wait then no problem. We'll see. (Posted on 9/22/2015)
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