Explore Scientific 208mm f/3.9 Newtonian Telescope - Carbon Fiber

ITEM #
ES-N208CF
  • Sale
  • Regular price $599.99
  • Explore Scientific 208mm f/3.9 Newtonian Telescope - Carbon Fiber

    • Sale
    • Regular price $599.99
    • ITEM #
      ES-N208CF

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    • Primary Mirror Diameter: 208mm (8.1")
    • Secondary Mirror Diameter: 80mm (3.1")
    • Focal Length: 812mm
    • Focal Ration: f/3.9

    Explore Scientific 208mm f/3.9 Newtonian Telescope - Carbon Fiber

    The Explore Scientific carbon fiber Newtonian has been designed to allow a larger primary mirror with a faster aperture ratio compared to the usual 8'' f/4, the Explore 208mm Newtonian telescope allows deeper shots with the same exposure time. The secondary mirror comes out to 80mm, allowing optimal field illumination. All in all, it is a scope of stellar quality, perfect for attaching to any telescope in need of one. It also includes a high quality 2'' focuser with 10:1 reduction; cradle rings with vixen style dovetail rail and carrying handle, all with an option for mounting a camera or other accessory. Yet another advantage of the Newtonian Fiber Scope is that it weighs a fourth of the usual aluminum Bresser versions of similar design, and focus drift is virtually nonexistent during long exposures!

    Additional Information

    Aperture208 mm (8.2")
    Focal Length812 mm
    Focal Ratiof/3.9
    Free ShippingYes
    ManufacturerExplore Scientific
    • 208mm Newtonian Optical Tube
    • Cradle Ring
    • V Style Dovetail
    • Finder Scope Bracket
    • Soft Carry Case

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    Questions & Answers

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    • Should i get a dew shield/heater for this. It seems like dew is a more problematic for scope with exposed obj lenses.

      Chuby, You really don't need a dew/shield for the Newtonian. Like you said, when the objective or corrector plate is close to the opening, then you need it. The dewshield also acts as a light shield, which the Newtonian already has. I could see some r

    • Good day. Please tell me, with this telescope it is possible to conduct visual observation or it is only for astronomical photography. Fastar Optics is a lens only for photography? Thank you.

      This telescope can be used for both uses. "Fastar Optics" only means that it is possible to remove the secondary mirror and add the optional Hyperstar corrector (at an additional cost) without damaging the telescope. Only telescopes with Fastar optics c

    • ES website offers a coma corrector and all accessories you offer at OPT. Is this correct? No coma corrector offered at this price point? Thanks Abraham

      Hey Abraham - this scope does in fact come with a coma corrector. Sorry for the confusion. If there is any issue, we will match their price with the HR Coma Corrector. Thanks!

    • Does the "Comet Hunter" come with a case?

      In order to allow better pricing, Explore Scientific has removed the case and is selling it as an optional accessory for this scope. The web link for the case is http://www.optcorp.com/explore-scientific-comet-hunter-case-cometcase.html.

    • Does this telescope have baffaling inside and how many? Abraham

      The manufacturer does not state if there are internal baffles in this telescope, but from pictures of this scope it does not appear that there are any internal baffles. The interior of the tube is likely blackened and thus may not need any baffling to ac

    • Hello: Can the 280mm carbon fiber scope be use for visual too. I'm not into photography but would like to put this on the alt -AZ mount. Thanx for reply, Mark

      Yes, this scope can be used for visual use as well as astrophotography.

    • I am considering this newt. Could the carry handle be removed and replaced with a dovetail so I can mount my 80mm refractor on this newt?

      Yes, you can either remove the handle and attach the dovetail directly to the rings, or you can attach the dovetail to the handle as well.

    • I would like to know the distance between the focuser connection and the focal plane. The reason why I need to know it is that I want to use the ASA-2Korrr(ASA 2-inch Newton Coma Corrector and 0.73x Reducer) in this telescope. Other candidates are the s

      According to Explore Scientific, the back focus distance is in between 90 and 93 mm considering the eye piece ring with and without. Total focuser travel is 33mm. We can assist you with getting the needed ASA parts as well if you need them. Please cont

    • Hi, I am asking you from Japan. I would like to know the distance between the focuser connection and the focal plane. The reason why I need to know it is that I want to use The Astrosystems Austria (ASA) 2" Reducer Corrector(Item # A2-2KORRR) in this

      Here is the update we got from ES: Total travel is 33mm. The back focus distance is in between 90 and 93 mm considering the eye piece ring with and without.

    • Is this newt available with a crayford two speed focuser instead of the rack and pinion? Who makes the coma corrector?

      Explore Scientific chose to use a rack and pinion focuser because it was more robust and stronger than their older Crayford focuser, but it would be possible to add an aftermarket Moonlite focuser to this scope if you would like.

    • What is the Limiting Magnitude?

      Good afternoon and thanks for asking. This calculation is as dependent on the quality of the telescope as it is on the power of the eyepiece, your age, and the condition of your eyes. I very quickly found a limiting magnitude calculator that you can use h