Takahashi Sky 90II 3.5 inch f/5.6 Fluorite Doublet Apochromatic Refracting Telescope on EM-200 Temma II Mount   $13,351.95,  Takahashi TSS9043,Refracting Telescopes, Best
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TAKAHASHI SKY 90II 3.5 INCH F/5.6 FLUORITE DOUBLET APOCHROMATIC REFRACTING TELESCOPE ON EM-200 TEMMA II MOUNT TSS9043

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Takahashi Sky 90II 3.5 inch f/5.6 Fluorite Doublet Apochromatic Refracting Telescope on EM-200 Temma II Mount

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Sale Price: $13,351.95
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Takahashi Telescope SKY90II FL DBLET APO Refractor, EM-200 T-2 Mount TSS9043

Item No. 111-10040
Manuf. No. Takahashi TSS9043

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Special Order Item Please read terms page before placing order

90mm f/5.6 Fluorite Doublet APO will blow you away! EM-200 Temma II Mount handles a payload of up to 35 lbs. GoTo control via PC. High precision construction results in periodic error less than +/- 5 arc seconds. Includes built-in polar finder with adjustable illuminator. It comes with BT Technologies finder bracket quick release, and includes SE-L wooden tripod with Shimano Clamps. About the Sky-90II f/5.6 Fluorite APO OTA

The latest telescope model from Takahashi is a truly portable design. The 90mm (3-1/2") f/5.6 fluorite doublet apochromatic optical system is of outstanding quality, with a focal length of 504mm. The optical tube assembly is only 13.8" long and weighs 7 pounds; small enough for an airline 'carry-on'.

Not only is this instrument an excellent choice for astronomy, it can be used as a portable high-quality telescope for birding. The oversize focuser has an adapter for 2" and 1-1/4" diagonals, and accepts the FS series photographic adapters.

Features:

  • Light Grasp: 165x
  • Resolution: 1.30"
  • Image Circle: 45mmę w/reducer
  • Photo Field: 5.1 degree w/reducer
Sky 90II Fluorite APO Specifications
  • Optical Design: Fluorite APO Refractor
  • Aperture: 3.5" (90mm)
  • Limiting Visual Magnitude: 11.5
  • Focal Ratio: 5.6
  • Focal Length: 19.8" (504mm)
  • Optical Tube Dimensions: 3.7" X 14.6" (95mm X 370mm)
  • Focuser Design: Rack & Pinion
  • Mount Type: German Equatorial
  • Drive System: Motorized with GoTo Capabilities
  • Weight - OTA: 7 lbs. (3.2 kg.)
  • Weight - Mount: 56.2 lbs. (25.5 kg) with counterweights
  • Counterweights: 2 - 7.7 lbs. (3.5kg)
  • Optical Coatings: Fully Multi-Coated
About the EM-200 Temma II Mount

The EM-200 Temma II is an accurate, precision-built GoTo German equatorial mount that provides a stable platform for payloads of up to 40 pounds.

The modern aesthetic design of the EM-200 is highly attractive as well as beautifully functional. The RA and DEC stepper motors are fully integrated into the mounting,and the high precision design and construction provides cyclic errors lower than +/- 5 arc seconds.

The integrated polar alignment telescope has an illuminated reticule which can be dimmed to suit the user or observing conditions. In conjunction with the precision altitude and azimuth adjusters, this will typically give polar alignment accuracy within 2 minutes of arc of the celestial pole.

Included in this package are an RS232C cable, ST-4 or ST-7 cable, shaft encoders, hand controller, power cord for both 12V and 24V operation, and software.

The new style EM-200 mounts include the ability for operation on 12v or 24v and feature high speed slewing at 350x [sidereal rate] at 12v and 700x at 24v. 12V operation takes place with the use of the hand controller only. The mount will then function just like the EM-200 USD model (no GoTo functions). However, with the use of the hand controller and your PC, you can operate with 12V or 24V (two 12V batteries connected in series). 12V will give you a slewing speed of up to 350X sidereal, and 24V will produce slew speeds of up to 700X. Your PC is required to actuate the GoTo functions on this mount. A dual-axis hand controller and power cable for 12V/220V battery connection is included.


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