Parfocal rings 1.25"

Your Price: $9.99

Part Number: PFR

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Eliminate the need to make focus adjustments when changing telescope eyepieces.
They are made of precision machined aluminium with black anodizing.
With parfocal ring equipped telescope eyepieces you can change magnifications quickly and easily.
Also useful for setting focus point of calibration eyepiece used for focusing an imaging or guide camera.
Sold as individual rings