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Opticstar ED80S Gold - Dual Speed
High Quality ED Refractor for Observing, Imaging and Guiding
To order this item outside the United Kingdom, please contact us.
Opticstar ED80S Gold
Opticstar ED80S Gold Dual Speed shown with optional finder scope and bracket.
  • High quality apochromatic refractor
  • Lens type: FPL-53 Fluorite Doublet
  • Coatings: Broadband FMC
  • Lens diameter: 80mm
  • Focal ratio: f6.25
  • Focal length: 500mm
  • Two speed (1:10) Precision 2" rotatable focuser
  • Robust, all-metal construction
  • 2" to 1.25" eyepiece adapter included
  • Metal knife-edge baffles
  • Retractable dew shield
  • Finder scope saddle
  • Mounting rings (with 1/4" photo/c thread)
  • Aluminium case (or quality nylon, padded travel-case)
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Opticstar ED80S Gold - Dual Speed
Package includes:
  • Opticstar 80mm f6.25 optical tube assembly (OTA).
  • High Precision 2" two speed, rotatable focuser (includes 1.25" adapter).
  • Finder scope saddle
  • Heavy duty Mounting Rings & Dovetail Bar.
  • FREE: Aluminium carry case (or Nylon padded case).
Optional Accessories
Opticstar 9x50 Finder Scope including brackets and leg mounting. + £30.00
Opticstar Red/Green Dot Finder. + £30.00
Ascension 2" 90° Dielectric Diagonal. + £50.00
Ascension 1.25" 20mm Wide Angle 66° eyepiece. + £20.00
Opticstar 1.25" x3 ED Photo-Visual Barlow Lens. + £39.00
Opticstar 2" x2 ED Barlow Lens. + £52.00
Opticstar 1.25" Deluxe Diagonal. + £20.00
Opticstar 1.25" Deluxe Prism Diagonal (correct orientation). + £25.00
Opticstar 2" Extension Tube. + £9.95
Ascension 2" 45° Prism Diagonal (for correct image orientation). + £79.00
Starwave Dual Saddles (Vixen-type) & Dovetail Bar + £75.00
Starwave Dual Saddles (Vixen & Losmandy-type) & Dovetail Bar + £85.00
FREE Options & Offers (please select one)
No offer. £0.00
Opticstar PX-35C COOLAIR colour video camera (1/4" CCD planetary). + £125.00
Opticstar PX-75C COOLAIR colour video camera (1/3" CCD planetary). + £215.00
Opticstar PX-75M COOLAIR mono video camera (1/3" CCD planetary). + £275.00
Opticstar DS-142C ICE TEC cooled colour camera (1/2" CCD deep sky). + £475.00
Opticstar DS-142M ICE TEC cooled mono camera (1/2" CCD deep sky). + £475.00
Opticstar DS-616C XL 6MP TEC cooled camera (1.8" CCD deep sky). + £1099.00
Order No. Price (inc_VAT) Shipping Delivery click button to purchase
OSRED80S6 £ 469.00 £ 10.00
ED80S User Manual
(PDF)
Opticstar CCD Cameras
(PDF)

Outline
The Opticstar ED80S short-tube refractor is ideal as a portable scope and can be used for observing, imaging or as a guide scope. It uses a high quality 80mm apochromatic doublet that is fully broad-band multicoated to ensure maximum light transmission.
The ED80S uses the higher quality FPL53 Fluorite glass rather than the FPL52 or FPL51 types. FPL53 Fluorite glass suppresses chromatic aberration and is very well suited for short focal lengths unlike the FPL52 or FPL51 types. The optical tube greatly benefits from metal knife-edge baffles (not the plastic less effective step-type) that prevent stray light outside the field of view from reaching the focal plane. Knife-edge baffles markedly increase image contrast.

The dual speed Crayford type focuser, main tube and lens assembly are screwed into each other for maximum rigidity, no peripheral screws are used as they can compromise the rigidity of the telescope. This eliminates movement and ensures orthogonality.

Focuser.
The ED80S Gold

The ED80S refractor features a high quality precision 1:10 two-speed Crayford type focuser with a 2" drawtube (1.25" adapter included), retractable metal dew shield, finder scope saddle, CNC rings with 1/4" photo tripod threads, broadband fully multi-coated optics and comes complete with a quality padded travel-case or alternatively with a hard aluminium re-enforced padded case.

With a focal length of 500mm (f/6.25) the ED80S is also very well suited for wide field astrophotography, guiding as well as for nature photography.
Optional aluminium case.
The aluminium case.
With a minimum total length of only 39cm and 80mm aperture the ED80S is the perfect travel scope. All you need to start using the ED80S is a photographic tripod, diagonal and eyepieces.

Opticstar ED80S Gold
Opticstar ED80S Gold Dual Speed shown with optional finder scope and bracket.

Focusing the Finder Scope
Loosen lens-cell B by turning it anti-clockwise. Turn the locking ring A clock-wise. Point the finder scope to a distant object, ideally a star, and bring the finder scope to focus by turning lens-cell B clock-wise or counter clock-wise as required. Once you have reached focus turn locking-ring A op.
Finderscope for Opticstar ED80S Gold
Focusing the finder scope.

The ED80S Gold as a Spotting Scope
The ED80S is ideal as a spotting scope due to is excellent optics and compactness. You will need a prism diagonal to obtain a corrected view through the ED80S as with any other refractor. With a prism diagonal the ED80S will focus down to 11 meters, with the addition of a 2 inch extension tube the ED80S will focus down to 6 meters. We highly recommend the padded case as this can by carried over one’s shoulder and provides ample storage space for the ED80S and its accessories.
Lens cell of Opticstar ED80S Gold
The optics.


Specification of Opticstar ED80S Gold Dual Speed
Aperture 80mm
Focal ratio f/6.25
Objective FPL-53 Fluorite doublet
Optical coatings Broadband FMC (fully multi-coated)
Optical tube Internally anti-reflection coated, knife-edge baffles
Dew shield Retractable with metal screw-type cap
Finder-scope saddle Yes
Focuser Two speed (1:10) precision, rotatable, adjustable
Focuser adapter Accepts 2" and 1.25" eyepiece and diagonals
Focal tube travel 70mm (etched markings, 1mm intervals)
Tube rings Heavy duty tube rings and dovetail with photographic 1/4" thread
Tube weight (inc rings) 2.5 kg
Minimum tube length 385mm with retracted dew-shield
Maximum tube length 465mm with extended dew-shield
Tube diameter 97mm
Frontal dew shield diameter 110mm (screw-type aluminium cap)
Construction All metal construction
Tube design Suitable for use with bino-viewers
Deluxe padded case.
The deluxe padded carry bag is included as standard.

Ascension 102ED Triplet APO (top).
Opticstar ED80S Gold (centre), Ascension 102ED Triplet (top) and Opticstar AR80S Gold (bottom).

Mounting on Schmidt-Cassegrain Telescopes (SCT)
The ED80S can be mounted on top of SCT telescopes with the Farpoint mounting rings, dovetail accessory adapters and dovetail plates as shown below.
Mounted on SCT.
The Opticstar ED80S shown mounted on fork-mounted SCT telescopes.
A & C Farpoint Scope Rings 125mm and Dovetail Adapters.
B Farpoint Dovetail Plate for Meade SCT.
D Farpoint Dovetail Plate for Celestron SCT.


Accessories
The following table lists a number of accessories that may be of interest to some customers.
Vixen-Style dovetail accessories
Image Product Page Description
Opticstar 120mm Scope Rings and Dovetail, Vixen-style Collimating rings and dovetail to mount small refractors on mounts such as the Celestron CG4, CG5, Sky-Watcher EQ3-2, EQ5, HEQ5, EQ6, Vixen mounts, etc.
Celestron Universal Dovetail Bar - Vixen-style Dovetail to mount refractors on mounts such as the Celestron CG4, CG5, Sky-Watcher EQ3-2, EQ5, HEQ5, EQ6, Vixen mounts, etc.
Farpoint "Sure Grip" Saddle - Vixen-style Saddle for Vixen-style dovetails to mount optical tubes.
Starwave Dual Saddles (Vixen-type) & Dovetail Bar Two Vixen-type saddles and Vixen-type dovetail bar to fit two optical tubes on a single mount.
Farpoint Side-by-Side Saddles - Vixen-style Two Vixen-style saddles and Vixen-style dovetail to mount two optical tubes on a single mount.
Sky-Watcher Equatorial Mounting Plates Dovetails of various lengths, to attach optical tubes to Vixen-style equatorial mounts
Opticstar Mini Dovetail - Vixen-style Compact dovetail to attach small optical tubes to Vixen-style equatorial mounts
Opticstar Short Dovetail - Vixen-style Short dovetail to attach small optical tubes to Vixen-style equatorial mounts
Losmandy-Style dovetail accessories
Image Product Page Description
Celestron Universal Dovetail Plate - Losmandy-style Dovetail to mount refractors on mounts such as the Celestron CGE Pro, Sky-Watcher NEQ6 PRO, AZ-EQ6GT, etc.
Starwave Dual Saddles (Vixen & Losmandy-type) & Dovetail Bar A Vixen-type saddle and a Losmandy-type saddle with a dovetail bar (Losmandy-type) to fit two optical tubes on a single mount.
Farpoint 125mm Scope Rings and Dovetail Adapters, Losmandy-style Collimating rings and two adapters for Losmandy-style dovetails to mount refractors on mounts such as the Celestron CGEM, GGE Pro, Losmandy, etc (dovetail plate not included, please see below).
Farpoint Dovetail Plates for Celestron SCTs, Losmandy-style These plates mount onto existing holes on the Celestron Schmidt-Cassegrain telescope tube.
Farpoint Dovetail Plates for Meade SCTs, Losmandy-style These plates mount onto existing holes on the Meade Schmidt-Cassegrain telescope tube.
Farpoint Vixen Saddle to Losmandy Saddle Adapter Adapter to fit optical tubes with Vixen-style dovetails on Losmandy-style saddles.
Other accessories
Image Product Page Description
Opticstar 1.25" Extension Tube Used to achieve focusing with long focal length eyepieces where focal travel on the telescope is limited.
Opticstar 2" Extension Tube Used to achieve focusing with long focal length eyepieces where focal travel on the telescope is limited.
Opticstar M48(M) to 2" Nosepiece Nosepiece for 2" drawtubes with a male M48x0.75 thread at the back. Threaded for filters. Can be used to attach DSLR cameras to the telescope (also requires the appropriate M48 ring adapter).
Opticstar T-thread to 2" Nosepiece Adaptor A T-thread (Male, M42 x 0.75) to 2" push-fit nosepiece. Threaded for filters. Can be used to attach DSLR cameras to the telescope (also requires the appropriate M42 "T-ring" adapter).
DSLR to T-thread(F) Adaptors A T-threaded ring (Female, M42 x 0.75) fits on Canon, Nikon, Sony and other DSLR cameras. Can be used to attach DSLR cameras to the telescope (an additional M42 to 2" Nosepiece may be required).
DSLR to M48(F) Adaptors An adapter rings (Female, M48 x 0.75) that fit on Canon, Nikon and Sony DSLR cameras. Can be used to attach DSLR cameras to the telescope (an additional M48 to 2" Nosepiece may be required).
Opticstar T Type Extension Tubes M42x0.75 Extension Tubes - Threaded on Both Sides. Available in 3mm, 6mm, 10mm, 20mm and 40mm lengths.


Notice
We are constantly checking the accuracy of the technical data. We are prepared to provide more detailed information on request. Technical data is subject to change without notice.

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Promotional Offer
Cash Back on Opticstar
Imaging Products
updated: 16th October 2013
Opticstar cashback offer.

Customers who purchase any Opticstar telescopes, Opticstar optical tubes or Opticstar mounts listed on this page qualify for a 10% cash back on any Opticstar astronomy cameras purchased at the same time or at a later date.

This offer is valid for 1 year commencing on the date that the Opticstar product is purchased from the Opticstar website or the Opticstar showroom.

Any additional purchases at a later date of Opticstar products that qualify for this offer will renew the cash back period to 1 full year.

Opticstar astronomy cameras that qualify for this offer include the following: Once an Opticstar CCD or CMOS camera has been purchased within a year of the qualifying Opticstar purchase, the cash back can be claimed by contacting Opticstar by email or over the phone quoting the receipt number(s). Please allow up to 14 days to process the payment.

Opticstar News
DS-616C XL is Astronomy Magazine's Star Product
posted: 12th February 2014
Opticstar DS-616C XL is Astronomy magazine's product of the year.
DS-616C XL is Star Product

The Opticstar DS-616C XL deep-sky CCD camera has earned the annual star product award from Astronomy, the world's best-selling astronomy magazine. Read about it in the September 2013 issue.

Sample Images
Opticstar DS-145M ICE
posted: 13th March 2009
Sample image.
The NGC7293 shot by John Haunton with the Opticstar DS-145M ICE.
Sample Images
Opticstar PL-130M CoolAir
posted: 10th February 2009
Mosaic of the Moon at 2354x4010 pixels 
 captured by Herwig Sulzbacher.
An impressive 9.4 megapixel mosaic of the Moon by Herwig Sulzbacher with the Opticstar PL-130M.
Feedback
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Sample Images
Opticstar DS-335C ICE
updated: 20th August 2010
Sample image.
The M42 nebula shot by Nick Witte Vermeulen with the Opticstar DS-335C ICE.
Astrophotography
Opticstar Imaging
posted: 26th February 2013
Opticstar telescopes for imaging.
High quality refractor telescopes, bundled with CCD cameras for deepd sky imaging, planetary video imaging and auto-guiding.
more
A&M 80mm f/6 Review
"Best Of Breed"
updated: 25th March 2009
A&M 80mm f/6 A&M/TMB.
The A&M 80mm f/6 A&M/TMB has been reviewed in Cloudy Nights and it has been hailed as the "best of breed". The review concludes by saying "offers stunning performance while standing out from the crowd, look no further".
Willmann Bell
Books for Astronomy
updated: 12th December 2013
Willman Bell books.
Acclaimed books from Willmann Bell...
more
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