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Explore Scientific N208CF Newtonian - Astrograph Edition - N208CF-01 - Ridge View Optics
Explore Scientific N208CF Newtonian - Astrograph Edition - N208CF-01 - Ridge View Optics

Explore Scientific N208CF Newtonian - Astrograph Edition - N208CF-01

  • Vendor
    Explore Scientific
    Sale price
    $999.99
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    Description:

    The Explore Scientific N208CF Newtonian - Astrograph Edition offers large aperture and super-wide field at f3.9. Field tested and updated by astrophotographers, this 208mm f/3.9 Newtonian produces tight, round stars with the recommended HR Variable Coma Corrector. This telescope assembly with its Carbon Fiber tube has very low expansion characteristics to hold its focus position, is also very lightweight, and a lightweight telescope performs better on any mount that it is placed on.
    The very fast f-ratio f/3.9 Parabolic Newtonian with Borosilicate Secondary and Low Expansion H-PZ33 Primary Mirror optics provides a focal length of 812mm. The already very bright visual images is further enhanced with 97% reflectivity EMD coatings. No-tool 3-point push-pull collimatable secondary holder adjustments and no tool adjustments for the "clipless" primary mirror holder cell have locks to keep optics aligned for the best images.
    Precise focusing is achieved with the Two Speed 2-inch Rack & Pinion Focuser with 50mm Extension Tube, and 1.25-inch Adapter.
    Other features include a finder scope base to mount an optional correct image Explore Scientific 8x50 Illuminated Polar Right Angle Finder Scope or the correct image Explore Scientific 8x50 Straight Through Illuminated Viewfinder.
    The Explore Scientific N208CF Newtonian is handled and supported by metal Cradle Rings with a contoured metal Handle/Grip that is slotted to allow a 1/4x20 attachment bolt for piggyback attachment of a DSLR. The 45mm Wide, 203mm Long Dovetail Plate (Vixen-style) mounts to fit a huge range of mounts from Explore Scientific and other brands. This dovetail plate has adjustment bolts with locks to adjust for precision cone angle adjustments.
    The package includes a padded, top-loading Soft Carrying Case to protect the optical tube assembly while transporting the instrument to your backyard or your favorite dark sky site for an imaging run or deep sky visual observations.

    Specifications:

    Item Number N208CF-01
    Parabolic primary Mirror Diameter 208mm
    Secondary Mirror Diameter (M.A.) 72mm
    Focal Length 812mm
    Focal Ratio f/3.9
    Resolving Power .6 arc seconds
    Optical Tube Assembly Weight with rings 19.1lb
    Dovetail Plate 45mm Wide (Vixen-style)
    Material Primary mirror Special low expansion H-PZ33
    Material Secondary mirror Borosilicate-glass with low thermal expansion, individually matched to main mirror