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Astronomy
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Eyepieces
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Manufacturer
William Optics
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Series
SWAN
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Type of build
SWA
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Focal length
Focal length
The smaller the focal length of an eyepiece, the higher the magnification when used with a telescope.
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> 40 mm
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Apparent field of view
Apparent field of view
This is the angle of aperture of an eyepiece.
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70 - 80 °
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Eye relief
Eye relief
Is the distance between the eyepiece and eye, within which the entire eyepiece field of view can still be seen. Longer eye reliefs are recommended for relaxed observing.
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> 25 mm
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Connection (to the telescope)
Connection (to the telescope)
Specifies the product's connection or connection thread on the telescope connection end. The same adapter dimension must always be available on the telescope.
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2"
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Weight
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Price
160 - 210 $
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in stock
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Categories:
Astronomy
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Eyepieces
Manufacturers:
William Optics
Series:
SWAN
Product series:
SWAN
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William Optics
40mm SWAN eyepiece, 2''
( 5 / 5 )
$ 198.00
ready for shipping in
24 h
