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      • Products
      • Telescopes
      • StellaVita
      • Solar Observing
      • Astroasis Focusers
      • Reducers
      • Field Flatteners
      • Guidescopes
      • Nano Camera Tracker
      • Motorized Filter Wheels
      • Dew Controller
      • Dew Heaters
      • Tri-Pier 1000
      • Bahtinov Focus Masks
      • Mount and EQMOD cables
      • Discontinued
    • Dealers
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    • About US

EN

  • Home
  • Online Store
  • Products
    • Products
    • Telescopes
    • StellaVita
    • Solar Observing
    • Astroasis Focusers
    • Reducers
    • Field Flatteners
    • Guidescopes
    • Nano Camera Tracker
    • Motorized Filter Wheels
    • Dew Controller
    • Dew Heaters
    • Tri-Pier 1000
    • Bahtinov Focus Masks
    • Mount and EQMOD cables
    • Discontinued
  • Dealers
  • Contact Us
  • Downloads/support
  • News
  • About US

Géar series 90mm EDT f/6


The Starfield EDT90 f/6 Triplet APO with FPL53 will take your wide field imaging game to new levels.  Using ED Glass optics, and GÉAR series standard accessories with heavy duty rings, vixen style dovetail, and a handle designed to mount accessories.  


2.5" Rack and Pinion 2 speed focuser, and a retractable dew shield.  To make your imaging experience even better the Camera Angle Rotator will let you frame up your object easily without adding flex or changing your focuser position.  


With a total weight of 9lbs, the Gear90 with it's optional 0.8x adjustable reducer, provides a larger field of view when using an APS-C based camera that is larger than 100mm class telescopes that cost more than double.  When used visually magnification up to 300x with no chromatic abrasion. 


Multicoated optics are standard and each Gėar series telescope comes with a Hard case with die cut foam, and optical test report. 



High quality build and features

 

  • 2.5" two speed rack and pinion focuser, with ball bearings, that is also fully rotatable rotation. Optional Motor focusers can easily be installed. Accepting 63mm accessories, and a pressure fit lock.  Support for heavy camera loads and accessories.
  • Supports 2" and 1.25" eyepiece accessories
  • Camera Angle Adjuster (CAA)
  • HD CNC tube rings and Vixen style dovetail bar
  • Handle for transportation and mounting accessories
  • Retractable dew shield retractable for transport.
  • Optional 0.8x adjustable reducer and 1.0x Flattener available.  Threaded for a secure connection to the focuser with no flex.


The GÉAR 90 with 0.8x reducer has a larger field of view compared to the Esprit100.  The GÉAR 90 is shown in RED

Specification - Triplet Apo 90mm f/6


  • Aperture:90 mm
  • Focal length:540 mm 
  • Focal ratio:f/6 
  • Objective: Multicoated APO triplet lens - FPL53
  • Limiting magnitude:12.3 mag 
  • Resolution:1.29" 
  • Weight tube alone: 9lbs
  • Weight with tube rings, dovetail bar and handle:12lbs  
  • Dew shield: retractable - can be fixed with one screw 
  • Focuser:2.5" CNC focuser Connections on the eyepiece side:2", 1.25" and M63x1 female thread
  • 1:10 ratio micro focuser knob 
  • Standard finder shoe
  • 2" adaptor with brass compression ring and 3x clamping screws  
  • Weight - 15lbs including tube rings,
  • Internally baffled to prevent stray light and get the contrast you would expect from performance refractors.
  • HD CNC tube rings and Vixen style dovetail bar
  • Handle for mounting accessories.  Supports Vixen and Arc Swiss accessories


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Starfield Optics Inc.

Toronto, ON, Canada

CAN: 416-421-3782 US: 415-762-1704

Copyright © 2025 Starfield Optics Company - All Rights Reserved.

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