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iOptron iEQ45 GoTo Mount with William Optics FLT110 Refractor Telescope

$3,770.00 $2,399.00

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iOptron iEQ45 GoTo Mount with William Optics FLT110 Refractor Telescope, 110mm Aperture, f/7 Focal Ratio, 710mm

Focal Length, 115mm (4.53″) Tube Diameter

Key Features

  • IEQ45 GoTo Mount
  • Type: Refracting Telescopes Telescope
What’s in the box:
  • iOptron iEQ45 GoTo Mount with William Optics FLT110 Refractor Telescope
  • 8407 Hand Controller
  • Vixen-Type Dovetail Saddle
  • Losmandy-D Dovetail Saddle
  • Tripod
  • 2x 11lbs Counterweight
  • 2x RJ11 Coiled Controller Cable
  • Dark Field Illuminating LED with Cable
  • AC Adapter (100V-240V)
  • 12V DC Adapter Cable
  • RJ9 to RS232 Serial Cable
  • RS232 Cable
  • 4x M6 Hex Head Screw
  • iOptron 2 Year Limited Warranty

2 in stock

Quantity Discounts

2 - 5$3,393.00

Quantity Discounts

6 - 50$3,016.00


About iOptron iEQ45 GoTo Mount with William Optics FLT110 Refractor Telescope

The iOptron iEQ45 GoTo Mount is one of the new breed of premium astro-imaging equatorial mounts. The iEQ45 mount offers the next generation GOTO technology. The mount is made of the highest quality materials to ensure stability and durability. With a payload of 45lbs (20.4kg), it comes standard with a calibrated dark field illumination polar scope and a sturdy 2″ stainless steel tripod. It also fits both Vixen and Losmandy-type mounting plates. Its lighter weight (only 25lbs or 11.33kg) makes it much easier to carry. The iOptron iEQ45 GoTo Mount comes with William Optics FLT110 refractor telescope that features 115mm tube diameter.

iOptron iEQ45 GoTo Mount with William Optics FLT110 Refractor Telescope Features

  • iEQ45 GoTo Mount: Specialized astrophotography mount ideal for entry-level and intermediate astro photographers
  • iEQ45 GoTo Mount: Portable, compact and sturdy German equatorial mount with the highest Payload/Mount ratio (1.7) in the category
  • iEQ45 GoTo Mount: Ultra-accurate tracking with temperature-compensated crystal oscillator (TCXO)
  • iEQ45 GoTo Mount: FlexiTouch Gap-free structure for both R.A. and DEC worm gears
  • iEQ45 GoTo Mount: Angular contact bearing for R.A and DEC axles, as well as worm gear shafts
  • iEQ45 GoTo Mount: Go2Nova 8407 controller with Advanced GoTo Nova GoTo Technology
  • iEQ45 GoTo Mount: Permanent periodic error correction (PEC)
  • iEQ45 GoTo Mount: Built-in 32-channel Global Positioning System (GPS)
  • iEQ45 GoTo Mount: Integrated ST-4 auto guiding port capable of reverse guiding with auto-protection
  • iEQ45 GoTo Mount: Calibrated polar scope with dark-field illumination and easy polar alignment procedure, allowing for fast and accurate polar alignment
  • iEQ45 GoTo Mount: iOptron port for electronic focuser, laser pointer, planetary dome control
  • iEQ45 GoTo Mount: RS232 port for computer control via ASCOM platform
  • iEQ45 GoTo Mount: Heated hand controller for low temperature operation (as low as -20deg.C)
  • iEQ45 GoTo Mount: Fits with both Vixen and Losmandy-type telescope mounting plates
  • iEQ45 GoTo Mount: 2″ heavy-duty stainless steel tripod

iOptron iEQ45 GoTo Mount with William Optics FLT110 Refractor Telescope Specifications

Focal Ratio
Focal Length
Objective Type
3 elements Air-spaced
Resolving Power
1.05″ / 26.67mm
Limiting Magnitude
Lens Shade
Linear Focuser
3.5″ 360 deg. Rotating Camera-angle Adjuster
Brass Compression Rings
1.25″ Adapter
Tube Diameter
115mm / 4.53″
Tube Length
643mm / 25.31″ (Fully Retracted)
752mm / 29.61″ (Fully Extended)
German Equatorial Mount
Payload/Mount weight
Right Ascension worm wheel
Diameter 130mm / 5.12″, 216 teeth aluminum
Declination worm wheel
Diameter 115mm / 4.53″, 192 teeth aluminum
Right Ascension axis shaft
Diameter 50mm / 1.97″ steel
Declination axis shaft
Diameter 40mm / 1.57″ steel
Right Ascension bearing
Diameter 80mm / 3.15″ angular contact bearing
Declination bearing
Diameter 68mm / 2.68″ angular contact bearing
Worm gears
Motor drive
Planetary Gear Reducer DC servo with encoder
0.09 arc seconds
Synchronous belt/Gear
Latitude adjustment range
5deg. – 70deg.
Azimuth adjustment range
+/- 6deg.
Internal 32-channel GPS
Polar Scope
Yes. (with dark field illumination)
Level indicator
Precision bubble
Hand Controller
Go2Nova 8407 with 358,000 objects database
Permanent PEC
1x,2x,8x,16x,64x,128x,256x,512x,MAX(-4 deg. /sec)
Counterweight bar
28mm / 1.10″
2″ (50.8mm) Stainless Steel
3.5″ (88.9mm) Vixen and 8″ (203.2mm) LOSMANDY-D Saddles included
Power consumption
0.25A(Tracking), 1.2A(GOTO)
Power requirement
12V DC(11 – 15V), 2Amp
AC adapter
100V – 240V (included)
Serial port
Yes (on hand controller)
RS232 port
Yes (on mount)
Autoguide port
Firmware upgrade
PC computer control
Operation temperature
-20 deg. to 40 deg. C / -4 deg. to 104 deg. F
2x 11lbs / 4.98kg
45lbs / 20.41kg, excluding counterweight
Mount: 20lbs / 9.07kg
Tube: 13.3lbs / 6.03kg


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