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Astronomy
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Extension tubes
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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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M54
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Optical length
The optically effective length of the component.
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Adaptors
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Extension tubes
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Askar
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Askar
Extension tube Adaptors M54/M54 16-20mm
$ 178.00
ready for shipping in
3-7 days
Askar
Extension tube Adaptors M54/M48 16-20mm
$ 178.00
ready for shipping in
3-7 days
