Enjoy A Discount, On Us!

Save 5% off your order using code 5OFF

Explore Scientific ED80-FCD100 Series 80mm f/6 Air-Spaced Triplet Refractor Telescope and Field Flattener

Explore Scientific ED80-FCD100 Series 80mm f/6 Air-Spaced Triplet Refractor Telescope and Field Flattener

Regular price $1,499.99
/
  • Free Shipping
  • Free 30-Day Returns
  • Ships In 2-5 Business Days Directly From Manufacturer
  • No Sales Tax Outside Washington State
  • Price Match Guarantee
  • Secure Payments
  • In stock, ready to ship
  • Inventory on the way
Shipping calculated at checkout.

We understand that you have plenty of online retailers to choose from, and we're just one of many. However, here are the things that set us apart from the rest -

  • Free shipping in the contiguous United States. No surprise fees. The price you see is the price you pay.
  • Unbeatable 30-Day return policy. WE pay for the return shipping AND any restocking fee enforced by the supplier so you can shop worry free.
  • Price Match Guarantee. We strive to have the best online prices. If you find a better one, let us know and we'll match it.
  • Product Passion. To us, you are not simply a customer. You are a colleague who has a similar fascination for the stars and wants the best tools available to admire them. That's why we only stock products that will exceed your expectations.
  • Visit our About Page to learn more

Features

  • This is a field flattener for refractor-type telescopes with a focal ratio of f/5 to f/7
  • Causes no change to the telescope focal length
  • 2-inch barrel to easily attach to a two-inch focuser
  • Fully multi-coated optics
  • T-ring thread on the device so a T-ring can be used to easily attach a DSLR camera or a dedicated astrocamera
  • 38 mm of clear aperture
  • Requires 55mm (+/-2) of back focus/spacing between the device and the camera sensor
  • Premium high glossy anodizing finish

Description

Reveal celestial wonders like the desolate beauty of the lunar terrain, the serene structure of Saturn’s rings or the brightest deep sky treasures of the Messier catalog with Explore Scientific’s 80mm FCD100 Apochromatic Refractor.

This is essentially the same scope as the ES-ED0806-02 but offering greater quality optics. We use Hoya FCD100 optics which is very similar in characteristics as Ohara FPL-53. Relying on technological innovation, we have successfully launched the mass production of high-performance optical glass at the apex of the FCD family. Combining it with optical glass of high refractive index allows us to achieve unprecedented advanced chromatic aberration correction. Hoya FCD100 is considered the best glass ever produced by Hoya.

Having a true diffraction-limited optical design and sized to encourage spontaneous stargazing sessions, this high-quality telescope is a perfect grab-and-go instrument for exploring the skies.

Featuring an air-spaced triplet optical design that virtually eliminates chromatic aberrations, this telescope generates brilliant high-contrast images by combining genuine HOYA FCD100 extra-low dispersion (ED) glass and proprietary EMD enhanced multi-layer coatings on all optical surfaces.

In addition, this amazing little scope also includes a 2.5" Hexagonal focuser with very rigid design and strong support. Up to 10 lbs of gear can be loaded onto this focuser.

Although it is a standout telescope on its own, the 80mm also is compact enough to mount on a larger telescope, which can add versatility to your astrophotography experience by separating the guiding and imaging duties. The telescope tube's outside diameter is 91 mm.

ED80 Classic White f/6 Air Spaced Triplet with Hoya FCD100 optics and Integrated Dew Shield; 480mm focal length; 2.5" HEX Focuser with 2 extension tubes; Integrated Vixen-Style Dovetail, Explore Scientific 2N1 Hybrid Finder Scope Base installed on scope; 99% Reflective 2" Diagonal. Weighs 7.5lbs. (Case and Finder Scope NOT Included)

Explore Scientific Field Flattener f/5 to f/7

When doing astrophotography with refractor-type telescopes, the faster the focal ratio the more field curvature becomes a problem. Field curvature will appear in the corners of astrophotographs, making the stars smear perpendicular to the axis of the image. This is called coma -- coma is Latin for comet, because the stars look like comets. The more the curvature, the closer to the center the coma appears. The larger the sensor, the worse the coma.

Astrophotographers can easily correct the coma by using a field flattener – an optical device that goes between the telescope and the camera. Field fatteners are not interchangeable, because these devices are designed to work with a small range of focal ratios.

The Explore Scientific field flattener is designed to work with telescopes with focal ratios between f/5 and f/7. Our device requires 55 mm (+/-2 mm) of spacing between the back of the device and the camera sensor.

NOTE: This device is for photographic use only. It is NOT intended for visual use.

Specs

Item Number FCD100-0806-02
Focal Length 480mm
Focal Ratio f/6
Limiting Magnitude 12
Resolution 1.45 arcsec
Tube Length w/ Dew Shield 18.5"; 475mm
Tube Length w/out Dew Shield 15"; 381mm
Diameter 85mm
Weight 7.5lb; 3.4kg
Dovetail Vixen

Warranty

Limited Warranty is one year, which converts to the Explore STAR Transferable Extended Life of the Product Warranty when product is registered within 60 days of purchase. Click Here to register.

Video

Recommended Accessories: Astrozap 3” Dew Heater Strap

CA Residents: Prop 65 WARNING(S)

    • We are happy to offer free shipping to all bordering states in the United States
    • Shipping typically takes 2-5 business days and is sent directly from the manufacturer
    • A tracking number will be provided when the manufacturer ships out the items. Please allow up to 5 business days to be provided with a tracking number

      30-Day Return Policy: no postage, no restocking fee, no worries!

      Astraeus Optics will cover shipping fees as well as any restocking fee that the manufacturer enforces.


      To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. Custom made items are not eligible for returns or refunds.

      There are certain situations where only partial refunds are granted: (if applicable)

      • Any item not in its original condition, is damaged or missing parts for reasons not due to our error.
      • Any item that is returned more than 30 days after delivery


      You can request a refund by Contacting Us.
      We will credit you for the total purchase price upon the receipt of your return. Products returned under this policy are eligible for a refund to the original method of payment.


      Defective Product Returns

      We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at support@astraeusoptics.com


      Refunds

      We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too.
      If more than 15 business days have passed since we’ve approved your return, please contact us at support@astraeusoptics.com

      This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

      Recently viewed