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Eyepieces
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Pentax
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Series
XW
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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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< 4 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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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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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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Pentax
Eyepiece SMC XW40-R 40mm 2"
$ 530.00
ready for shipping in
1-2 weeks
