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Televue Mount Ring Set for 4" diameter optical tube assemblies
which controls the diameter of the light beam
and a plethora of deep-sky objects
59 in) Focal Ratio F/5 Focal Length of Eyepiece 1 25mm (0
Parfocal with other eyepieces of this series to minimize the need to refocus when switching eyepieces
TeleGizmos 365 Series Cover for 8" Newtonian on GEM - T3N8 Replacement Parts Televue Mount Ring Set forTeleGizmos 365 Series Cover for 8" Newtonian on GEM This cover is from the TeleGizmos 365 Series of heavy duty environment protection covers. This TeleGizmos Cover will fit 8" Newtonians on a GEM, including Meade LXD 55 75, SN8, N10 without a dew shield. The cover fits a tube length up to 46", major height 62". NOTE: The photograph shows a generic 365 Series SCT cover installation for illustration purposes, only. Your cover will look slightly
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