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Astronomy > Telescopes > William Optics > William Optics Apochromatic refractor Pleiades 181 AP 181/998 Astrograph OTA
Product no.: 84720

Apochromatic refractor Pleiades 181 AP 181/998 Astrograph OTA

$ 20,800.00 incl. VAT plus shipping costs
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Product description

Specifications

Optics

Type
Refractor
Type of build
Apochromat
Aperture (mm)
181
Focal length (mm)
998
Aperture ratio (f/)
5,5
Resolving capacity
0,76
Limit value (mag)
12,3
Light gathering capacity
670
Max. useful magnification
362
Tube weight (kg)
15
Carrying length (mm)
1231
Tube length (mm)
1496
Coating
SMC multi-coating
Stray light baffles in the OTA
yes
lens design
Quadruplet
Glass material
OHARA FPL-53
Fully Corrected Field (mm)
55

Focuser

Type of build
rack and pinion
Connection ( to eyepiece)
2
Ring clamp
yes
Gear reduction
1:10 fine focusing
Rotating
yes

Mount

Type of build
OTA
Mounting type
no mount

Included accessories

Finder scope
without
Dew Shield
yes
Deviating optics
no
Prism rail
Losmandy-Style
Miscellaneous
Bahtinov focus mask
Carrying handle
yes
Carry case
yes
Corrector
integrated
Camera adaptor
M54

General

Colour
white

Area of application

Astrophotography
yes (very good)
Moon & Planets
yes
Nature Observation
no
Nebulae & galaxies
yes
Sun
no (Only with appropriate Sun filter)

Recommended for

Beginners
no
Advanced
yes
Observatories
yes
show more...

Product safety

manufacturer: William Optics Co. Ltd, TW, [email protected]
resp_person: NIMAX GmbH, Otto-Lilienthal-Str. 9, 86899 Landsberg am Lech, DE, [email protected]
Product safety

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*All prices include VAT plus shipping costs.

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William Optics Apochromatic refractor Pleiades 181 AP 181/998 Astrograph OTA
William Optics Apochromatic refractor Pleiades 181 AP 181/998 Astrograph OTA
William Optics Apochromatic refractor Pleiades 181 AP 181/998 Astrograph OTA
William Optics Apochromatic refractor Pleiades 181 AP 181/998 Astrograph OTA
William Optics Apochromatic refractor Pleiades 181 AP 181/998 Astrograph OTA

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