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Opticstar ED80S Gold Traveller
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High Quality ED Refractor for Observing, Imaging and Guiding
To order this item outside the United Kingdom, please contact us.
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Opticstar ED80S Gold Traveller.
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- Lens type: FPL-53 Fluorite Doublet
- Coatings: Broadband FMC
- Robust, all-metal construction
- Lens diameter: 80mm
- Focal ratio: f6.25
- Focal length: 500mm
- Two speed (1:10) Precision 2" rotatable focuser with 2" to 1.25" eyepiece adapter
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- Metal knife-edge baffles
- Retractable dew shield
- Illuminated Finderscope 8x50mm
- 45° Prism Star Diagonal
- Zoom 7-21mm Eyepiece
- Planetary Filter Set
- Moon Filter
- Padded travel-case
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Opticstar ED80S Gold Traveller
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Outline
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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.
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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.
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Objective lens.
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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, 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.
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.
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Opticstar ED80S Gold Traveller.
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The ED80S Gold Traveller as a Spotting Scope
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The ED80S is ideal as a spotting scope due to is excellent optics and compactness.
With the bundled 1.25" 45° Prism Diagonal you can obtain a corrected view through the ED80S.
The telescope will focus down to 11 meters and with the addition of a 2 inch extension tube
the ED80S will focus down to 6 meters. The included padded case can be carried over one’s
shoulder and provides ample storage space for the ED80S and its accessories.
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Standard Accessories
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The ED80S Gold Traveller comes bundled with the following accessories as standard:
- 8x50mm Illuminated Finderscope.
- 1.25" 45° Prism Diagonal for correct orientation.
- 1.25" Zoom 7-21mm Eyepiece.
- 1.25" Planetary Filter Set with Case.
- 1.25" Moon Filter, 25% light transmission.
- Padded Backpack Carry Case.
The bundled accessories make the ED80S suitable for astronomy and terrestrial use without additional purchases.
Simply mount the telescope on a photgraphic tripod or a telescope mount and start observing straight away.
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| Specification of Opticstar ED80S Gold Traveller |
| 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 weight |
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 |
| Standard sccessories |
8x50mm Illuminated Finderscope, Zoom Eyepiece, Prism Diagonal, Planetary Filter Set, Moon Filter, Padded Travel Case |
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The deluxe padded carry bag is included as standard.
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Notice
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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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