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Takahashi - FSQ-106ED "New Q" APO Refractor Telescope - (EM-11 Temma II Mount)


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Manufactured by: Takahashi


Takahashi FSQ 106 ED Quadruplet Apochromat Refractor

Takahashi has made significant improvements over its predecessor, the "old" FSQ106. Based on a Petzval quadruplet (double doublet!) apochromat optical design with a four-lens fully-multicoated system using two ED (Extra-low Dispersion) glass elements. The modified Petzval design uses a true apochromatic doublet objective lens with an ED element to gather the light.   There is a second widely air-spaced ED doublet within the focuser drawtube itself. This second doublet optimizes the optical wavefront from the objective lens to eliminate any residual astigmatism.  It also features an integrated a field flattener for wide field astrophotography. The result is a very accurate instrument optimized for wide-field imaging of the deep sky.  It also comes equipped with a built-in camera angle adjuster and an oversized 4" heavy duty rack-and-pinion focuser capable of  as much as a 5kg load.  For critical adjustments it also features a 10:1 microfocuser. To minimize the length of the optical tube, it includes a retractable dewshield that makes the FSQ  airline portable at only 16.7" long when collapsed!

The new FSQ telescope has significantly longer backfocus than the "old" FSQ106 measuring178mm to accommodate most DSLR and CCD systems.  Many CCD imagers have additional equipment in the light path such as filter wheels, adaptive optics, temperature control focusers and other accessories that take up precious focus travel. The new "Q" with additional backfocus will accommodate most all Imaging equipment and is a superlative Visual instrument as well that will  allow the use of virtually all Barlows, focal reducers, extenders, multiple eyepieces and binoviewers.

  The focuser, all aluminum castings, mounts and optics continue to be hand made and assembled, one at a time, by Takahashi craftsmen in Japan who consistently  produce flawless optical and mechanical quality instruments resulting in no less than functional works of art to be enjoyed for many years.

 This FSQ-106ED Package Includes:  

  • FSQ-106ED (OTA), Tube complete 
  • EM-11 Temma-2 EQ mount (2 x 5 kg counterweight)
  • FC-L long wooden tripod
  • LE 18mm Eyepiece
  • 1.25" Diagonal Prism
  • 7X50 Finder Scope
  • Finder Bracket
  • Tube Holder

 Takahashi FSQ-106 Highlights:

  •  Back focus has been increased to 178mm in order to accommodate numerous combinations of CCD cameras, optical accessories and bino viewers.
  •  The new "Q"  tube assembly is 16.7" long which makes it the ultimate traveler's' stowaway astrograph. The length is 20.5" with the lens shade extended.
  •  The new heavy-duty focuser with camera rotator will carry a 5 kg. load to accommodate the new large chip CCD cameras with an 88mm image circle  
  •  A new f/3.6 reducer is a great option for wide field imaging producing a 6.5° field.
  •  The redesigned modified four element double ED Petzval optics have been optimized for imaging and will produce outstanding visual images.
  •  Color correction has been extended to 1000nm to provide non bloated imaged stars.
  •  When used with the Extender-Q it will provide superb images for higher magnification views of the Moon and planets.

 Takahashi EM-11 Temma II M Equatorial Mount Features:

  • The EM-11 Temma II "GoTo" mount is made for small to medium sized loads. 
  • Capable of GoTo operation with your PC. Weight capacity is 25 lbs.
  • Drive System: Dual axes, quartz control, driving frequency: 100pps N/S, Star/Sun switching by hand controller
  • Useable Area: All over the world, but with limit for the latitude
  • High Speed Drive: 120X at DC12V, 250X at DC24V
  • Correcting Speed (Manual Operation): RA: 0.1 ~ 1.9x to the sidereal rate by 0.1X increments. Dec: +/- 1.5 ~ 13.5 arc sec/sec by 1.5 arc sec/sec increments
  • Mode Indicator: High speed operation - red light. 
  • Normal operation: green light
  • Power Source: DC12V or DC24V
  • Power Consumption: DC12V: 0.3/1.3A (1.7A) sidereal/high speed (start). DC24V: 0.3/1.9A (1.9A)
  • Operational Temperature: -5 ~ +30ºC
  • Go-To Operation: Yes, with PC or Takahashi Advanced Hand Controller
  • Go-To Disc: Pegasus v2.1  
  • RS232C cable and  RJ-11 cable included

Additional Information

Name Takahashi - FSQ-106ED "New Q" APO Refractor Telescope - (EM-11 Temma II Mount)
Manufacturer Takahashi
Model TSS1065
Manufacturer Part No TSS1065
Telescope Aperture 4.1" - 5"
Alignment Procedures EQ North Align, EQ South Align
Aperture 4.17"
Backfocus Distance 178.00mm
Computer Hand Control Yes
Counterweights 7.71 lb.
Dew shield Included
Diameter 125mm
Eyepieces 18mm LE
Finderscope 7 x 50 Optical Finder
Focal Length 530mm
Focal Ratio f/5
Focuser 4" Rack & Pinion
Highest Useful Magnification 229x
Image circle 1.7" (44mm)
Limiting Stellar Magnitude 12.6
Mount Equatorial
Optical Coatings Fully Multi-Coated
Optical Design Refractor - Apochromatic
Optical Tube Length 26.6"
Optical Tube Weight 15.4 lbs.
Power Requirements DC Cable with Alligator Clips
Tripod FC-L Wood Tripod