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Telescopes > William Optics > FluoroStar > William Optics Apochromatic refractor AP 98/618 FluoroStar FLT98 ED DDG + aluminium case OTA
Product no.: 18939

Apochromatic refractor AP 98/618 FluoroStar FLT98 ED DDG + aluminium case OTA

$ 2,590.00 incl. VAT, plus shipping costs
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Product description

More about the series FluoroStar...

William Optics FLT FluoroStar telescope:

The telescope is equipped with a triplet apochromatic objective lens. A fluorite glass element is used to provide the highest possible colour correction, right out to the edge of the field of view. The difference can be clearly seen and not only with very critical objects but above all with photographic work using digital camera systems. The air gap lens elements are held rigidly in the lens cell and have very high quality 'STM' coatings for an even better contrast. The OTA interior is also well equipped with baffles and is painted matt black so that virtually no irritating reflections can occur.

This telescope can also be used together with an image field corrector as an excellent astronomical objective. 6 light baffles ensure excellent reflection suppression and so higher contrast.

Specifications

Optics


Type
Refractor
Type of build
Apochromat Triplet
Aperture (mm)
98
Focal length (mm)
618
Aperture ratio
6,3
Resolving capacity
1,17
Limit value (mag)
11,8
Light gathering capacity
200
Max. useful magnification
196
Tube weight (kg)
4,7

Eyepiece holder


Type of build
DDG
Connection ( to eyepiece)
3,5
Rotating
yes
Gear reduction
1:10 Fine movement

Mount


Mounting type
no mount
Type of build
OTA
Tracking
no

Included accessories


Miscellaneous
Pipe clips, carrying bag

General


Series
FluoroStar
Variant name
incl. transport bag

Area of application


Nature observation
yes
Moon & Planets
yes
Nebulae & galaxies
yes
Astrophotography
yes
Sun
not recommended (Only with appropriate Sun filter)

recommended for


Beginners
not recommended
Advanced
yes
Experienced amateurs
yes

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