Explore Scientific 102mm f/7 Essential Apochromatic FCD100 ED Triplet Refractor Telescope (OTA only)

Explore Scientific 102mm f/7 Essential Apochromatic FCD100 ED Triplet Refractor Telescope (OTA only)

Explore Scientific 102mm f/7 Essential Apochromatic FCD100 ED Triplet Refractor Telescope (OTA only)

B&H # EXFCD1001020 MFR # FCD100-10207-01
Explore Scientific 102mm f/7 Essential Apochromatic FCD100 ED Triplet Refractor Telescope (OTA only)

Explore Scientific 102mm f/7 Essential Apochromatic FCD100 ED Triplet Refractor Telescope (OTA only)

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Expected availability: 7-14 business days

Product Highlights

  • 102mm Aperture
  • 714mm Focal Length, f/7 Focal Ratio
  • Apochromatic Triplet Lens System
  • Hoya FCD100 Extra Low Dispersion Glass
  • Proprietary EMD Enhanced Multi-Coatings
  • Two-Speed 2" Rack-and-Pinion Focuser
  • 1.25" Adapter and 90° Star Diagonal
  • Vixen-Style Dovetail Plate
  • Mounting Cradle-Ring with Handle
  • Mount and Tripod Required
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Focuser: 2"/2-Speed Rack-and-Pinion

2"/2-Speed Rack-and-Pinion 2.5" HEX Focuser

Not available with current selections

3"/2-Speed Rack-and-Pinion

Not available with current selections

OTA Material: Aluminum

Aluminum Carbon Fiber

Not available with current selections

Price:  $1,499.99

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Explore Scientific ED102 overview

  • 1Description

The ED102 102mm f/7 Essential Apochromatic FCD100 ED Triplet Refractor Telescope from Explore Scientific features a triplet apochromatic lens system with Hoya's exceptionally engineered and crafted FCD100 extra-low dispersion (ED) glass and Explore Scientific's proprietary anti-reflection EMD fully multi-coated optics. This combination of glass, lenses, and coatings virtually eliminates chromatic and spherical aberrations for clear and bright images without distortion across the entire field of view, with true color rendition. This is a versatile optical tube assembly that is powerful enough to clearly see the planets and bright deep sky objects. It has a relatively small form-factor that makes it perfect as a portable grab-and-go option, or set up on a dual-mount rig for astrophotography/astroimaging.

A mounting cradle-ring clamps over optical tube assembly (OTA). The cradle-ring allows the user to adjust the orientation and position of the scope relative to the mount to optimize viewing comfort and balance, while avoiding interference with other equipment. The scope is offered without a mount or tripod, but a Vixen-style dovetail plate makes it compatible with any alt-az or equatorial mount with a Vixen-style saddle. Its two-speed rack-and-pinion focuser helps make fine-focusing fast and precise. A 90° star diagonal is also included for more comfortable viewing. The mirror has dielectric coatings for a 99% light transmission for minimal light loss when using it.

Optical Performance
  • 102mm objective lens
  • 714mm focal length
  • Focal ratio: f/7
  • Refractor-style optical design
  • Hoya FCD100 extra-low dispersion (ED) glass all but eliminates chromatic aberration for enhanced contrast and accurate color rendition across the entire visible spectrum
  • Triplet apochromatic lenses reduces spherical aberrations and corrects distortion across the entire field of view
  • Proprietary anti-reflection EMD enhanced multi-coatings on all optics improve light transmission to help produce bright and clear high-contrast images
  • Resolution: 1.14 arc sec
Use and Handling
  • Two-speed 2" rack-and-pinion focuser
  • Bracket for user-supplied finderscope
  • One-piece 2" 90° star diagonal with highly-reflective dielectric coatings for up to 99% light transmission
  • 1.25" eyepiece adapter
Mount
  • Vixen-style dovetail plate included
  • User-supplied mount and tripod required
  • Compatible with any alt-az or equatorial mount with a Vixen-style saddle
  • Cradle-ring assembly for plate allows the scope orientation to be changed based on mount configuration
  • Integrated carry handle on cradle-ring assembly
UPC: 812257017614
In the Box
Explore Scientific 102mm f/7 Essential Apochromatic FCD100 ED Triplet Refractor Telescope (OTA only)
  • 2" ES Star Diagonal acvxcccqeeezqdtysexuyse
  • 1.25" Eyepiece Adapter
  • Limited 1-Year USA Warranty, Extendable to Transferrable Lifetime Warranty with Registration
  • Table of Contents
    • 1Description

    Explore Scientific ED102 specs

    Optical Tube Assembly
    Optical Design Apochromatic Triplet Refractor
    Aperture 102 mm / 4.1"
    Focal Length 714 mm
    Focal Ratio f/7
    Resolution 1.14 Arcsec
    Eyepiece Barrel Diameter 1.25", 2"
    Diagonal Yes, 90 Star
    Finderscope No
    Mounting System Vixen Style
    Generalacvxcccqeeezqdtysexuyse
    Weight 12.0 lb / 5.5 kg
    Packaging Info
    Package Weight 16.3 lb
    Box Dimensions (LxWxH) 28.3 x 10.8 x 8.5"

    Explore Scientific ED102 reviews

    102mm f/7 Essential Apochromatic FCD100 ED Triplet Refractor Telescope (OTA only) is rated 4.0 out of 5 by 1.
    Rated 4 out of 5 by from I'll give it a 4 star This is not to reflect negatively on B&H at all, they had nothing to do with this review, only the transaction - which was efficient and well handled. I've been holding off on this review for quite a while, and may have to come back and edit this after official "first light". The scope was drop shipped directly from the factory to me quickly. The packaging was HORRIBLE. The scope was loose in the box and not sufficiently padded. The focuser was loose when it arrived which I tightened after finding the correct size hex-wrench but there was nothing else that I noticed. The scope seems very well built (but come on ES, put some more bubble wrap in the case !!). I have tried it out on some terrestrial objects, but due to an extremely poor Summer (months of clouds and rain), I have not seen any stars or planets through it yet. Collimation has not been verified yet, hopefully all of the rattling around in the shipper did not affect it. Seems like a very well built scope with decent optics. Nothing so far has indicated this will be an issue, but you never know until "first light".
    Date published: 2018-09-16
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